You know Mr Les Myer I got my tech two a day early and Mr 10-78 edac said I will still have to do the work but of that I am not sure this tool is awesome I didn't expect it to be so big it,s 13" tall by 6" or so at the top wide and gets more slender at the bottom.but like you mentioned I am going to read about it first because PayPal has my back on this purchase so if anything is not just rite or flawed will return at once besides going to pass emission,s first then remove battery so I can replace bolt holder that fell when I did the lower manifold gaskets and I never found but bought new one and will replace when I begin testing this great looking tool.But as 10-78 edac said the tool won't Do it all for you so it only does 50% I can live with that.No just kidding but I am also designing a smoke machine that really smoke,s out a vehicle vacuum line system as well as evap too.It will leave the car truck or what ever in a cloud plume when I am done with modifying some ones else,s design to work for automotive.It will work like the $2,000.00 machines.

 

Well, here are a few things I would really like to know if your new clone Tech 2 will do on your Blazer:

Transfer case (4 button only): TCCM
Command the front axle to lock/unlock (a bidirectional control)
Display Status of Encoder Circuits P, A, B, C (data only)

HVAC: BCM
Display Heat and air Conditioning Data Display List (data only)

If it can do these things, I think it can probably do it all and I would then buy my own to evaluate as it could be a VERY usefull tool for a few hundred $$$ (clone or not).

Also would like to know if it has functionality on a 2008+ GM vehicle as it comes for the price that you paid.

I wouldn't even hook it up to your Blazer until you have passed emissions though!!

Les

 

Ok Captain purchased the three volume gm service manuals for my Blazer also upgraded to a Tech II scanner And I know the evap should complete its test from the 40,s up to 86 I think it is.But on my way to my parents to use the garage to work on my car one day last week or so we got up to 60,s or so and guess what my evap completed its test cycle.But now the tech II is saying there is a small leak in the evap system no code or requested MIL just the scanner found it.Bought a real nice smoker and the scanner has a purge & test mode that closes the vent valve and lets you set the purge to 10% on up to allow more smoke into the engine thought about it and maybe should have commanded the vent closed and left the purge already closed then smoked just the evap but it smoked the heck out of it didn't find that little leak but when I commanded the vent open the smoke just rolled out of the vent valve this smoker really works great.$150.00 from Kustome Smoke the guy builds a great product.But even with that amount of smoke couldn't find the leak I purchased some UV DYE just not sure were to place it. Maybe remove the reed valve and use the low pressure in the smoker to push it down the pipe but do you think that will get it every were it needs to be it mentions putting it in 4or5 gallons of gas but once mixed with gas will it get fully in the evap system I cant find any info on it but its the evap I want to test not the fuel system so I am leary of putting it in the fuel tank think that will just test the fuel system for leaks not the evap.?

 

This reminds me of a kid playing Mama against Papa. Just pick one specialist that you believe in and do what he asks. Don't ask one to expain what the other one says about a car that neither one has seen.......

Go back and read post #2. If it's not completing the tests there are two possibilities:

1. You are not doing the drive cycle correctly
2. There is some fault present that prevents the drive cycle from completin
In post #1 you said there was no hard code in memory. Does that imply there was a pending code?

 

Les you know I will still think the evap monitor passed because of temp but the post you put on line said 39 deg up to 90 deg or so for testing the evap system.
And this is going to make me wonder because its been 54 or so all those days I failed at the drive cycle but the Saturday when it passed it was only 60+ deg or so.But that smoker I had hooked up at the purge valve green cap removed and stem as well.Had a low pressure regulator on it so it would only put in a pound or so of pressure at the purge.and this is why I started thinking weather or not it was the temp or the pressure.Clean Dry Low Pressure Gas source Notice
Notice Use the evap pressure/purge diagnostic station j41413 in order to provide a clean,dry low pressure gas source.Do not substitute any other pressurized gas source. Damage may result to the evap system.What do you think made it pass that Saturday.

 

OK - here's what I think. I really don't believe you have ever had an EVAP problem.

I believe your EVAP testing just didn't run, probably due to a temp parameter not being within spec to run the testing (ECT, MAT, etc) and you kept messing with it making it start over again and again in the dead of the Winter and it just wouldn't complete for whatever reason. Remember that failing to complete the test doesn't by itself indicate a problem - only completing and failing the test 2x (complete with SES light and stored code) indicates a problem. Today I tried to find where you set the P0442 that one time but I couldn't in all the pages of this post.

Later it does seem like you indicated the EVAP system failed a TECH2 test for the EVAP system holding vacuum and indicating a small leak. That I'm sure makes you believe there is a leak, but in reality we don't even know that you have the correct vehicle selected on your tech2. If you have the incorrect vehicle selected, then who is to say that the same amount of vacuum drop is appropriate for your vehicle. I just don't know. I do hope you had your state emissions pass your vehicle while the monitor was completed and passing. Don't know if monitor has started over again or not. I really worry that you are just chasing ghosts. I think the next time you have a few days of nice weather it will complete again.

Look up Bulliten PIT4943C on testing PO442. This may be of some help in understanding the smoke tests.

Also of interest should be TEch Bullitens:
01-06-04-044
00-06-04-021
01-06-04-011A
00-06-04-033B

These are all on the AllDataDiy site when you have a subscription, and probably here on the Blazer site too.

Good luck and best wishes,

Les

 

I believe I have the correct vehicle in the choices of the tech II because I went through them all one at a time and the one that works 16 pid,s is L and it also worked the bay test so I could smoke the system but wasn't able to find the pin leak.And yes passed emissions it cleared on a day 60 degrees + and I am sure that is why.Just the temp difference.One more thing I found a patent article about a smoker that uses baby oil as does mine that they have patented the use of UV DYE in the smoker as it turns to smoke the dye particles travel through the smoke and find any leak if one is available in the evap system or air brakes as well.This patent is on a tool just like mine a sealed unit with a 12 volt heating element baby oil as the fluid of choice and for there UV DYE I read that it had a flash point of 400 degrees and the boiling point was 500 degrees I think that was what it was I have the article bookmarked and the UV DYE they sell at all the parts stores is Auto Pro UV DYE and its flash point is 382 and its boiling point is 480 close enough to work in my smoker I think but just encase I will keep it some distance from the car and see if I can find that pin hole this way.You should really get one now there only $319 out the door and if for any reason you don't like check out with Paypal and they will get your money back.

 

Here is the patent I spoke of that makes the paint can smoker that I posted about that is as good or better just ask Scotty Kilmer better yet look him up on YouTube with the paint can smoker.and here is the patent I spoke of that works with a smoker in design the same as mine and same oil just a little difference in the dye specs.
Patents
Find prior artDiscuss this patentView PDFDownload PDF
Publication number US6439031 B1
Publication type Grant
Application number US 09/385,050
Publication date Aug 27, 2002
Filing date Aug 30, 1999
Priority date Aug 30, 1999
Fee status Paid
Also published as CA2394911A1, CA2394911C, EP1384984A1, EP1384984B1
Inventors Kenneth Alan Pieroni, Denise Yvette Haddad, Jim Eli Saffie
Original Assignee Star Envirotech, Inc.
Export Citation BiBTeX, EndNote, RefMan
Patent Citations (10), Referenced by (9), Classifications (7), Legal Events (5)
External Links: USPTO, USPTO Assignment, Espacenet
Method for detecting leaks in a fluid system
US 6439031 B1
ABSTRACT
A method for detecting leaks in a fluid system such as, but not limited to, the evaporative or air brake system of a motor vehicle. A smoke generating machine produces a supply of smoke to be delivered to the system under test. At least some of a mixture of oil and fluorescent dye is heated and vaporized into smoke with in a sealed chamber. The smoke functions as a carrier for the dye. Some of the smoke which is delivered to the system under test from the chamber will exit a leak (e.g. a hole), and the fluorescent dye carried by the smoke will leave a fluorescent trace around the leak. By shining ultraviolet light along the system under test, the fluorescent trace around the leak will be illuminated. Accordingly, even small leaks may be quickly, easily and reliably located for repair.
IMAGES(3)
Patent Drawing

Patent Drawing

Patent Drawing

CLAIMS(7)
What is claimed is:
1. A method for detecting leaks in a fluid system to be tested in a volatile potentially explosive environment, said method comprising the steps of:
adding a fluorescent dye to a supply of oil to form a uniform mixture;
locating a heating element in a sealed chamber;
blowing at least some of said uniform mixture of oil and fluorescent dye towards said heating element within said sealed chamber by means of a non-combustible nitrogen gas delivered under pressure to said mixture;
heating the blown mixture by said heating element so that said oil is vaporized into smoke within said sealed chamber to create a carrier for said fluorescent dye, said non-combustible nitrogen gas preventing dieseling within said sealed chamber and the possibility of an explosion at the volatile potentially explosive environment in which the fluid system will be tested;
delivering said smoke and said fluorescent dye carried thereby to the fluid system under test, whereby said smoke will exit a leak in the fluid system and said fluorescent dye will leave a fluorescent trace around the leak; and
shining ultraviolet light on the fluid system under test to illuminate the trace left by the fluorescent dye around the leak.
2. The method for detecting leaks recited in claim 1, including the additional steps of placing the uniform mixture of oil and fluorescent dye within the sealed chamber and heating said at least some of the mixture by means of said heating element located within said sealed chamber.
3. The method for detecting leaks recited in claim 2, including the additional step of locating said heating element within said sealed chamber above said uniform mixture of oil and fluorescent dye.
4. The method for detecting leaks recited in claim 2, including the additional step of connecting a gas inlet tube to a source of said non-combustible nitrogen gas, said gas inlet tube communicating with said uniform mixture of oil and fluorescent dye within said sealed chamber to deliver the non-combustible nitrogen gas under pressure from said source to said mixture for blowing said at least some of said mixture towards said heating element.
5. The method for detecting leaks recited in claim 4, wherein said gas inlet tube has an inlet orifice formed therein and located within said uniform mixture of oil and fluorescent dye within said sealed chamber, said gas inlet tube extending above said mixture so that said at least some of said mixture is suctioned through said inlet orifice and blown towards said heating element by means of the non-combustible nitrogen gas delivered under pressure to said mixture by said gas inlet tube from said source thereof.
6. The method for detecting leaks recited in claim 2, including the additional step of connecting a smoke outlet line to communicate with said sealed chamber at a location above said uniform mixture of oil and fluorescent dye so that the smoke produced when said at least some of said mixture is vaporized is conveyed to the fluid system under test at the volatile potentially explosive environment via said smoke outlet line.
7. The method recited in claim 1, wherein the fluid system to be tested for leaks at the volatile potentially explosing environment is the evaporative system of a motor vehicle through which a working gas or liquid is transported under pressure.
DESCRIPTION
BACKGROUND OF THE INVENTION
1. Field of the Invention

This invention relates to a method by which smoke is produced by a smoke generating machine and used to detect leaks (e.g. holes) in a fluid system. The method disclosed herein has particular application for detecting the presence and location of small leaks by leaving a fluorescent trace at the site of the leak.

2. Background Art

It is known to generate smoke within a sealed chamber of a smoke generating machine so that the smoke can be delivered to a fluid system under test in order to detect the presence and location of leaks by visually inspecting the system for any smoke escaping therefrom. By way of example, our prior U.S. Pat. No. 5,922,944 issued Feb. 9, 1999 described such a smoke generating machine that has particular application for producing smoke to identify the presence and location of relatively large leaks in the fluid system.

However, it has been found that in situations where the leaks to be identified are of very small size, a correspondingly small volume of smoke may escape through the hole. In other cases, the velocity of the smoke which escapes the leak may be so high as to make the smoke substantially invisible. As a consequence of the foregoing, small leaks in a fluid system under test may escape detection and repair with the obvious results that the system will operate in an inefficient manner.

In the past, attempts have been made to use a fluorescent dye to accurately locate small leaks in certain air transporting systems. For example, a fluorescent dye has been used successfully to locate leaks in various refrigeration and air conditioning systems. Reference may be made to U.S. Pat. No. 5,918,269 issued Jun. 29, 1999 for an example of a particular dye which is suitable to leave a fluorescent trace at the site of a leak. In this case, the system coolant (i.e. freon) acts a carrier for the dye. Without a suitable carrying agent, it would not be possible to cause the dye to traverse the system so as to mark the location of all of the leaks.

However, there are other air transporting systems, particularly those found in motor vehicles, which do not use a carrier agent. That is to say, the air which traverses these systems is not, and of itself, capable of functioning as a carrier to transport the fluorescent dye past the sites of the leaks. While attempt has been made to vaporize the dye into a mist to improve flow conditions, these attempts have proven to be largely unsuccessful.

Accordingly, what is needed is a reliable, easy to use means of locating relatively small leaks in an air transporting system, such as those found in a motor vehicle, by causing a fluorescent dye to be carried through the system so as to leave a visible trace at the site of the leak, which trace may be quickly detected under ultraviolet light.

SUMMARY OF THE INVENTION
In a method to accomplish the foregoing, it has been found that smoke functions as a suitable agent to carry a fluorescent dye through a fluid (e.g. air) system so as to leave a fluorescent trace at the site of each leak. By way of example, a smoke generating machine may be coupled to the evaporative or air brake system of a motor vehicle to locate small holes therein. The smoke generating machine includes a sealed chamber which contains a supply of non-toxic petroleum based oil. In accordance with the present invention, a commercially available fluorescent dye is mixed into the oil within the sealed chamber. A resistive heating grid extends laterally across the chamber of the smoke generating machine above the mixture of oil and dye. A supply of air or, in the alternative, a non-flammable gas (e.g. nitrogen) is delivered to the chamber by way of an air inlet tube. Some of the mixture of oil and dye is drawn into the air inlet tube and blown outwardly therefrom towards the heating grid. As the mixture strikes the heating grid, it is instantaneously vaporized into smoke. The rising smoke within the chamber is delivered via an air outlet tube to the system to be tested. The smoke acts as a reliable carrier of the fluorescent dye through the system and past the site of any leak.

As the smoke from the smoke generating machine travels through the fluid system under test, some of the smoke will escape through a leak (e.g. a hole). The smoke will condense as it escapes through the hole, and the fluorescent dye that is carried by the smoke will leave a detectable trace surrounding the hole. The hole may now be quickly, easily and accurately detected by simply running a source of ultraviolet light along the system. In the event that the system contains a hole, the ultraviolet light will illuminate the fluorescent trace left by the dye which escapes with the smoke through the hole. The trace will now be visible, whereby the presence of the hole can be located and repaired.

BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 shows a smoke generating machine within which a mixture of oil and fluorescent dye is vaporized to produce a supply of smoke to be delivered to a fluid (e.g. air) system under test for leaks; and

FIG. 2 is an example of a fluid system under test having a leak that is surrounded by a fluorescent trace that is left by the fluorescent dye which is carried by the smoke as it escapes through the leak.

DETAILED DESCRIPTION
Referring to drawings, there is shown in FIG. 1 a smoke generating machine 1 that is capable of generating a supply of smoke to be delivered to a fluid (e.g. air) system under test via a smoke outlet line 6 so that the fluid system can be visually inspected for leaks. By way of example only, the smoke apparatus 1 may be coupled to the evaporative or air brake system of a motor vehicle. The smoke generating machine 1 of FIG. 1 has been described in detail in our U.S. Pat. No. 5,922,944 issued Jul. 13, 1999, the teachings of which are incorporated herein by reference. Therefore, a full description of the smoke generating machine 1 will not be provided.

Briefly, however, the smoke generating apparatus 1 includes a sealed chamber 2 which contains a non-toxic petroleum based oil supply 8. An air inlet tube 10 projects upwardly from the bottom of the chamber 2 and extends above the oil supply 8. Inlet tube 10 communicates with an external air compressor or pump 25 through a wall of the chamber 2 by means of an air supply line 22. In the alternative, the air inlet tube 10 may be coupled to a source 28 of non-flammable gas, such as nitrogen, or the like, so that a relatively safe, non-explosive environment can be established, especially for use in volatile situations, such as in systems which transport a flammable liquid (e.g. a fuel tank, or the like).

As inlet orifice 12 is formed in the air inlet tube 10 so as to lie within the oil supply 8 immediately above the bottom of chamber 2. A resistive heating grid (e.g. a coil) 14 extends laterally across the sealed chamber 2 and is electrically connected to a 12 volt battery by means of a manually operated push button switch (not shown). A fluid baffle 18 having a smoke outlet orifice 20 formed therein extends laterally across the sealed chamber 2 above the heating grid 14. The aforementioned smoke outlet line 6 communicates with the outlet orifice 20 through the top wall of the sealed chamber 2.

In operation, when the push button switch is closed, the battery supplies current to heat the heating grid 14, and the air compressor 25 delivers air into the sealed chamber 2 via the air supply line 22 at approximately 14 liters/minute to cause some of the oil supply 8 within the chamber 2 to be drawn, by means of suction, through inlet orifice 12 and into the air inlet tube 10. A mixture 26 of air and oil is then blown upwardly and outwardly from the air inlet tube 10 towards and into contact with the heating grid 14 whereby the oil is vaporized into smoke 30. The rising smoke 30 travels through the outlet orifice 20 in fluid baffle 18 for receipt by the smoke outlet line 6. Accordingly, the smoke in outline 6 is conveyed to the fluid system to be tested so that the integrity of the system may be visually inspected for leaks depending upon the absence or presence of smoke escaping from a hole or similar leak formed therein.

However, it may be difficult to be able to visually detect smoke emerging from very small holes in the fluid system under test so as to be able to accurately pinpoint the location of such a hole in need of repair. In other cases, the down stream pressure of the smoke within the system to be tested may be so low that only a very small amount of smoke escapes from the hole. In yet other cases, the down stream pressure of the smoke may be so high that the smoke exists the hole at a correspondingly high rate so as to be essentially undetectable. In all of the situations described above, it may become time consuming to find all of the holes in the fluid system in need of repair. In fact, it is possible that one or more holes could escape detection altogether.

In accordance with the present improvement, a method is described to be used in combination with the smoke generating machine 1 of FIG. 1 to overcome the aforementioned problems in detecting leaks in a system having one or more very small holes or where there is either too much or too little pressure driving the smoke through the system and to the site of a hole. More particularly, it has been found that all of the holes in a fluid system can be reliably detected, regardless of the size of the hole or the pressure within the system under test, by adding a dye (designated 40 in FIG. 1) to the oil supply 8 within the sealed chamber 2 of smoke generating machine 1.

In this regard, it has been found that the smoke 30 into which the oil supply 8 is vaporized functions as a carrier for the dye 40. Establishing a suitable carrier is important so that the dye 40 can be transported with the smoke 30 into the smoke outlet line 6 and through the fluid system under test so as to leave a visible trace at each of the holes in need of repair. A fluorescent dye 40 is preferable for leaving an identifiable trace (designated 54 in FIG. 2) at the site of each hole in need of repair.

In particular, the fluorescent dye 40 should have high flash and boiling points to avoid a premature breakdown when the oil supply 8 to which the dye is added is vaporized into smoke by the heating grid 14 within the sealed chamber 2 of the smoke generating machine 1. A fluorescent dye having a flash point greater than 400 degrees F and a boiling point greater than 500 degrees F is preferred. The fluorescent dye 40 is added to the oil supply 8 of the sealed chamber 2 in a ratio of about 0.25 ounces of dye for each quart of oil. The dye and oil combination should be stirred for a sufficient time to ensure a uniform mixture that will not separate during periods of non-use. By way of example only, one commercially available fluorescent dye that has been found to be suitable for mixing with the oil supply 8 that is vaporized into smoke for use in marking the location of holes in the fluid system to which the smoke outlet line 6 of smoke generating machine 1 is coupled is product APD (Part No. 800) available from Corrosion Consultants, Inc. of Roseville, Mich.

Referring concurrently to FIGS. 1 and 2 of the drawings, a portion of a fluid system under test is represented by an air carrying hose 50 (best shown in FIG. 2) or similar conduit of the kind typically found in a motor vehicle that is susceptible to leaks. However, it is to be understood that the advantages of this invention are not limited to fluid systems which comprise the air carrying hose 50, and any other fluid system which normally transports a working gas or liquid may be tested for leaks according to the teachings herein, provided that the system is capable of receiving the fluorescent dye 40 on a carrier of smoke 30 that is produced after the dye and the oil supply are first mixed together and the oil supply is then vaporized and delivered to the system.

As the smoke 30 from the smoke generating machine 1 of FIG. 1 travels through the fluid system under test, including the air carrying hose 50, some of the smoke will escape through each hole 52. The smoke will condense as it escapes through the hole 52, and the fluorescent dye that is carried by the smoke will leave a detectable trace 54 surrounding the hole. The hole 52 in the hose 50 may now be quickly, easily and accurately detected by running a source 56 of ultraviolet light 58 along the hose 50. In the event that the hose 50 contains a hole 52, the ultraviolet light 58 will illuminate the fluorescent trace 54 left by the dye which escapes through the hole 52 with the smoke carrier. The trace 54 will now be visible, whereby the presence of the hole 52 in need of repair can be accurately located.

By virtue of the method described above, it is not necessary to actually see the smoke which exists a hole to identify the presence and location of a leak. Moreover, the user will now have an easy to use and reliable means to locate all of the leaks in the fluid system under test regardless of size. While the smoke produced by our smoke generating machine is ideally suited for finding relatively large holes in the manner described in our aforementioned U.S. Pat. No. 5,922,944, the smoke produced by our smoke generating machine can now also be used to locate holes of relatively small size according to the teachings of this invention by mixing a commercially available fluorescent dye into the oil supply and then vaporizing the oil to produce a carrier by which to transport the dye through the fluid system under test.

PATENT CITATIONS
Cited Patent Filing date Publication date Applicant Title
US3683675 * Nov 4, 1970 Aug 15, 1972 Lockheed Aircraft Corp Method and means for leak detection
US4155249 * May 16, 1977 May 22, 1979 Scott Forrest G Thermal-aerosol generators
US4439341 * Mar 21, 1983 Mar 27, 1984 The United States Of America As Represented By The Secretary Of The Navy Smoke generator for use with water and smoke generant
US4697520 * Aug 11, 1986 Oct 6, 1987 Northern Research & Engineering Corp. Fog oil smoke generator
US4754638 * May 23, 1986 Jul 5, 1988 Antares Engineering, Inc. Apparatus and method for leak testing automotive wheel rims
US5094168 * May 24, 1991 Mar 10, 1992 Diehl Gmbh & Co. Camouflage and deception arrangement
US5859363 * Jul 1, 1997 Jan 12, 1999 Gouge; Larry Michael Device and method for smoke testing of gas furnace heat exchangers
US5922944 * Feb 9, 1998 Jul 13, 1999 Pieroni; Kenneth Alan Smoke producing apparatus for detecting leaks in a fluid system
US6189453 * Jun 11, 1999 Feb 20, 2001 Yu-Chuan Lin Structure of a smoke generator
USH1124 * Jul 30, 1992 Jan 5, 1993 The United States Of America As Represented By The Secretary Of The Army Particle smoke generator and method
* Cited by examiner
REFERENCED BY
Citing Patent Filing date Publication date Applicant Title
US6865341 Jun 17, 2003 Mar 8, 2005 Lyndon J. Hurley Smoke producing system
US7050709 Dec 6, 2004 May 23, 2006 Hurley Lyndon J Smoke producing system
US7305176 Oct 28, 2004 Dec 4, 2007 Redline Detection, Llc Method and device for detecting leaks using smoke
US8737826 Sep 12, 2011 May 27, 2014 Redline Detection, Llc High pressure smoke machine
US9091611 Apr 25, 2011 Jul 28, 2015 Redline Detection, Llc Leak detection system with secure sealing mechanism
US20060153495 * Dec 6, 2004 Jul 13, 2006 John Wynne Galvanically isolated signal conditioning system
US20070297774 * Oct 28, 2004 Dec 27, 2007 Redline Detection Llc Method and device for detecting leaks using smoke
US20100326171 * Jun 26, 2009 Dec 30, 2010 Gene Stauffer Smoke generation and leak detection system
US20110283777 * May 18, 2010 Nov 24, 2011 Chrissis Jeffrey T Portable automotive leak detector
* Cited by examiner
CLASSIFICATIONS
U.S. Classification 73/40.7
International Classification G01M3/22, G01M3/20
Cooperative Classification G01M3/20, G01M3/22
European Classification G01M3/22, G01M3/20
LEGAL EVENTS
Date Code Event Description
Feb 19, 2002 AS Assignment
Jan 17, 2006 FPAY Fee payment
Year of fee payment: 4
Feb 2, 2010 FPAY Fee payment
Year of fee payment: 8
Sep 13, 2011 B1 Reexamination certificate first reexamination
Free format text: THE PATENTABILITY OF CLAIMS 1-7 IS CONFIRMED.
Nov 8, 2013 FPAY Fee payment
Year of fee payment: 12
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Data provided by IFI CLAIMS Patent Services

 

Ok Les Captain you guys are three hours ahead of me so its like almost midnight and don't know if you see these post until Monday so here goes.I added auto pro dye to my kustome smoker and smoked from the port by the purge valve under green cap reed valve out.Only took a few minutes even with a 18 volt Dewalt flash light couldn't see any smoke coming from any were so got out the black light and there was the leak a droplet came out at the vent line hooked up at the charcole canister and didn't even drop .Just formed enough to let me know my Tech II is working when it let me know about the leak.And now that the leak is located because of the Kustome built smoker that Brian built for me I can now put that pin hole to rest replace the hose problem gone.And as I said before I do think the Tech II has the correct info for my vehicle it starts out the year 2003 then the vehicle LD Trk,MPV,Incomplete then power train 4.3 liter x not w then transmission 4 speed automatic then Eletronic Shift/Manual Shift and after that you have choices data display and many more choices to choose from but really do think it is reading info for my vehicle.

 

Looks like your factory shop manual set, clone tech2, and smoker have worked well for you. Also your perseverance has paid off. Thanks for letting us know!