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08-09-2010, 01:16 PM
Replies: 13
Views: 1,908
Posted By A/M/G

I just replaced my radiator, thermostat, cap and...

I just replaced my radiator, thermostat, cap and hoses. I went back with green/yellow coolant after a complete flush of the coolant system. There is a raging debate about the pros and cons of...
07-28-2010, 11:01 AM
Replies: 2
Views: 617
Posted By A/M/G

Fuel gage is always a prob, the sending unit is...

Fuel gage is always a prob, the sending unit is part of the fuel pump. after replacing the pump it still may not work correctly. fill it up drive 250 miles fill up again.


i ahve not worked on...
07-07-2010, 07:36 AM
Replies: 14
Views: 49,857
Posted By A/M/G

The pressure will flux some from idle to WOT. ...

The pressure will flux some from idle to WOT. The main concern is what is the min and max pressure? I assume you still have the original spider and fuel pressure regulator.
07-01-2010, 02:28 PM
Replies: 20
Views: 5,803
Posted By A/M/G

It will not take 10 seconds for the fuel to get...

It will not take 10 seconds for the fuel to get to the eng, or it should not. Go to the DIY section and do the fuel sys diganosis test. Again, it could be the pump, FPR, filter, check vlv, etc. ...
06-30-2010, 04:45 PM
Replies: 20
Views: 5,803
Posted By A/M/G

Look at the fuel, it sounds like the fuel...

Look at the fuel, it sounds like the fuel pressure is dropping off. If less tha 5 min the pressure may not have enough time to drop off. 5 seconds is WAY TOO LONG for the truck to start, 10 or 15...
06-30-2010, 04:40 PM
Replies: 20
Views: 5,803
Posted By A/M/G

I would not really trust the dash meter. I would...

I would not really trust the dash meter. I would go to the battery post for my voltage reading. If it takes 2 days for the battery to die it sounds like a bad cell in the battery. If you leave the...
06-30-2010, 04:27 PM
Replies: 20
Views: 5,803
Posted By A/M/G

I am confused. First you say the battery drains...

I am confused. First you say the battery drains fast in 10 minutes with a hell of a time starting, if the battery drains it will not start. Last you say it cranks for 5 to 10 seconds before starting,...
06-30-2010, 04:15 PM
Replies: 20
Views: 5,803
Posted By A/M/G

I am confused. First you say the battery drains...

I am confused. First you say the battery drains fast in 10 minutes with a hell of a time starting, if the battery drains it will not start. Last you say it cranks for 5 to 10 seconds before...
06-30-2010, 03:39 PM
Replies: 14
Views: 49,857
Posted By A/M/G

It took 3 pumps to fix my 01. First was an...

It took 3 pumps to fix my 01. First was an Airtex, then 2 Delphi's. I bought all three at at O Rileys. Returned the Airtex got the money back and bought the Delphi. The 2nd Delphi runs perfectly....
05-24-2010, 08:03 AM
Replies: 30
Views: 3,588
Posted By A/M/G

Read the entire post, I figured it.

Read the entire post, I figured it.
05-19-2010, 02:02 PM
Replies: 30
Views: 3,588
Posted By A/M/G

Maybe, I don't know. Thanks, it has been a bear.

Maybe, I don't know. Thanks, it has been a bear.
05-19-2010, 07:15 AM
Replies: 3
Views: 733
Posted By A/M/G

I had previously read the above post, I do not...

I had previously read the above post, I do not have a tow package. I do not see any wires tucked under the bumper that have no terminal ends on them. The rear cross member only had one connector...
05-19-2010, 07:07 AM
Replies: 30
Views: 3,588
Posted By A/M/G

First one, Airtec?, last two Delphi.

First one, Airtec?, last two Delphi.
05-18-2010, 07:55 PM
Replies: 3
Views: 733
Posted By A/M/G

01 Trailer Lights

I have searched the forum and a I cannot find the answer.

01 blazer, wanting to add trailer lights. Rear bumper, cross member, found a bundle that has a disconnect, (mentioned in a from a...
05-18-2010, 07:33 PM
Replies: 30
Views: 3,588
Posted By A/M/G

Done, Fixed, Corrected, Complete. Three...

Done, Fixed, Corrected, Complete. Three pumps!!!!! Hope the pump last a LONG time.

Thanks,
A/M/G
05-13-2010, 01:36 PM
Replies: 30
Views: 3,588
Posted By A/M/G

I have looked the lines over several times, they...

I have looked the lines over several times, they look ok. Replaced the filter, it had very tiny bits of black particles in it--going to replace it again. I suspect the pump is bad because of the...
05-13-2010, 10:26 AM
Replies: 30
Views: 3,588
Posted By A/M/G

Sirlion, The 01 as a plastic tank. Thanks for...

Sirlion,
The 01 as a plastic tank. Thanks for the info. I am looking at all possibilities at this time.


Istalled the new MFI, no help.

At redline my fuel pressure drops to ZERO, with...
05-10-2010, 09:07 AM
Replies: 3
Views: 595
Posted By A/M/G

No, as stated it is in the vaccum source. No...

No, as stated it is in the vaccum source. No line goes to the port.
05-10-2010, 07:11 AM
Replies: 30
Views: 3,588
Posted By A/M/G

Thanks, I just ordered the MFI, but I thought it...

Thanks, I just ordered the MFI, but I thought it was the kit. I just replaced the PFR a couple of months ago so I can reuse the orings. The bracket not needed, good deal.

This weekend I will...
05-09-2010, 11:40 AM
Replies: 30
Views: 3,588
Posted By A/M/G

Delphi, maybe 3-45 days.

Delphi, maybe 3-45 days.
05-09-2010, 09:28 AM
Replies: 30
Views: 3,588
Posted By A/M/G

OK, I bought the MFI part #12568332 from...

OK, I bought the MFI part #12568332 from GMPD.COM. I thought it came with the seals and and the bracket, no seals no bracket. Do I really need the new bracket, or will the MFI install directly on...
05-01-2010, 02:30 PM
Replies: 30
Views: 3,588
Posted By A/M/G

I checked the TPS 2 or 3 times. I got my 5 volt...

I checked the TPS 2 or 3 times. I got my 5 volt reference and my .5 volt sensor return everytime. Replaced the TPS, no help. The new TPS .5 volts to 1.25 volts, that is all, not 4.5 volts.
...
04-28-2010, 01:27 PM
Replies: 30
Views: 3,588
Posted By A/M/G

MFI--Multi-port Fuel Injection? If that is...

MFI--Multi-port Fuel Injection?

If that is what you are talking about, I read somewhere if replacing the spider replace with MFI. I have the original spider. Could this spider have a sticking...
04-27-2010, 03:47 PM
Replies: 30
Views: 3,588
Posted By A/M/G

I have changed the pump twice, The pump ground...

I have changed the pump twice, The pump ground has been removed from the cross member, cross member and ground connect cleaned and reattached.
The pump provides 62 psi on start. As I said this...
04-27-2010, 02:28 PM
Replies: 30
Views: 3,588
Posted By A/M/G

I am not sure what you are talking about my...

I am not sure what you are talking about my frustrations toward other people. If I did I did not mean to. I really appreciate this board and information people are willing to share. Please accept...
04-27-2010, 02:08 PM
Replies: 30
Views: 3,588
Posted By A/M/G

Ok speed limiter, my vehicle drops to idle and...

Ok speed limiter, my vehicle drops to idle and will not accel until the key is cycled. i know it is a fuel issue. I have a fuel gage in front of the windshield. It drives fine until the fuel pressure...
04-27-2010, 02:00 PM
Replies: 13
Views: 1,326
Posted By A/M/G

Ok speed limiter, my vehicle drops to idle and...

Ok speed limiter, my vehicle drops to idle and will not accel until the key is cycled. i know it is a fuel issue. I have a fuel gage in front of the windshield. It drives fine until the fuel...
04-27-2010, 01:06 PM
Replies: 13
Views: 1,326
Posted By A/M/G

not trying to hijack a thread, what turns the...

not trying to hijack a thread, what turns the fuel off at 5600 rpm, my truck is doing this intermittently. it will just go to idle, the same thing happens when at high rpms. it drops to idle and...
04-27-2010, 12:38 PM
Replies: 30
Views: 3,588
Posted By A/M/G

308, I like that name, Mine...

308, I like that name, Mine A/M/G--Archery,Muzzleloader,Gun. So, I like the outdoors and so forth, I hunt with all three--what ever season is available.

I have replaced the regulator, it was...
04-26-2010, 12:33 PM
Replies: 30
Views: 3,588
Posted By A/M/G

Yes, I have forgot to mention that.

Yes, I have forgot to mention that.
04-25-2010, 11:11 AM
Replies: 30
Views: 3,588
Posted By A/M/G

01 Blazer falls flat intermittently

My prob happens when starting to accel, sometimes before I get out of the drive way or on a long trip. The eng falls to idle. I have put a fuel pressure gage and watched ther pressure drop to 50...
04-05-2010, 07:01 AM
Replies: 3
Views: 1,364
Posted By A/M/G

I just cleaned my ground yesterday. It is...

I just cleaned my ground yesterday. It is located on the cross member between the back wheels, right behind the tank. It is not very easy to get to. My ground did not look that good, I cleaned it,...
04-04-2010, 03:13 PM
Replies: 10
Views: 26,908
Posted By A/M/G

Go to the fuel pump prime connector and wire it...

Go to the fuel pump prime connector and wire it directly to the battery. This by-passes all the relays and provides battery voltage to the pump directly. The connector is located on the firewall.
04-04-2010, 12:51 PM
Replies: 9
Views: 1,295
Posted By A/M/G

The more I think about it, I think the pump is...

The more I think about it, I think the pump is loosing current, causing the pressure to drop. It drops to 40 psi which is where the injector poppets close.

I am going to:
--check my ground...
04-03-2010, 06:28 PM
Replies: 9
Views: 1,295
Posted By A/M/G

One other thing I thought of, the last time it...

One other thing I thought of, the last time it went crazy:fuel pressure at 44:::psi acting crazy, I Turned the key off, the fuel pressure immediatly went to 62 psi, without turning the key back to...
04-03-2010, 05:49 PM
Replies: 9
Views: 1,295
Posted By A/M/G

The FPR was bad. The valley under it was washed...

The FPR was bad. The valley under it was washed clean and it would not hold a vacuum. After replacing the FPR the fuel pressure increased. After the key was turned on the pressure did not decrease...
04-02-2010, 10:00 AM
Replies: 9
Views: 1,295
Posted By A/M/G

The first one was a Airtex, which after...

The first one was a Airtex, which after installing I learned was a no no.

The last was a Delphi.

I think the Airtex was prob ok because the truck acts the same with all three the original,...
04-01-2010, 11:17 AM
Replies: 9
Views: 1,295
Posted By A/M/G

Again thank you for your insight. ...

Again thank you for your insight.

Amplifying information:
----62 psi when key is turned on, when pump goes off--immediately drops to 56psi, then in 45 seconds to 50 psi and continues to...
03-31-2010, 01:22 PM
Replies: 9
Views: 1,295
Posted By A/M/G

Thanks for the information. I want to be sure of...

Thanks for the information. I want to be sure of something:

Step 3----if the pressure drops more than 5psi in 10 minutes, one of the five items listed is faulty. I simply turn the key on and...
03-29-2010, 07:31 AM
Replies: 9
Views: 1,295
Posted By A/M/G

01 Blazer 4.3

The vehicle runs great most of the time, however, sometimes at any speed the engine seems like it boggs down starving for fuel. Checked the fuel pressure 55 psi, replaced fuel pump. It seemed to...
11-26-2009, 10:57 AM
Replies: 5
Views: 1,735
Posted By A/M/G

Hard Cold Start

I have a 01 that requires excessive crank time to start, 3 to 4 seconds, when cold. It starts immediately when warm. Ideas?

I just bought this vehicle. It has 85000 miles.
Showing results 1 to 41 of 41


 
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