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06-30-2014, 07:42 PM
Replies: 28
Views: 5,264
Posted By mwbrown4

If you have a problem with the injectors or...

If you have a problem with the injectors or injector nozzles, I definitely recommend replacing the whole spider assembly with the updated multiport fuel injection assembly by delphi or acdelco. Had a...
06-15-2014, 02:24 PM
Replies: 19
Views: 14,241
Posted By mwbrown4

Gotcha, makes sense now. So I would now think it...

Gotcha, makes sense now. So I would now think it must be a reallllly small leak somewhere which isn't large enough to cause even a small leak code??
06-15-2014, 12:32 PM
Replies: 19
Views: 14,241
Posted By mwbrown4

Thanks Captain I'm thinking it may be the...

Thanks Captain

I'm thinking it may be the fuel tank pump module o ring because i had a hell of a time getting it to seal, used a little clean motor oil to get it to go butt it was still a pain and...
06-15-2014, 09:49 AM
Replies: 2
Views: 2,960
Posted By mwbrown4

The Captain hits the nail right on the head once...

The Captain hits the nail right on the head once again!!!
06-15-2014, 09:45 AM
Replies: 6
Views: 5,003
Posted By mwbrown4

First do a fuel system diagnosis leak down test....

First do a fuel system diagnosis leak down test. To do it you need a fuel pressure gauge. You can rent one at your local auto zone for a deposit of about $150. Now, connect the gauge on the fuel rail...
06-15-2014, 09:29 AM
Replies: 19
Views: 14,241
Posted By mwbrown4

Thanks Captain for the quick reply. Much...

Thanks Captain for the quick reply. Much appreciation.

Went through the "Check For the Following Conditions" section and here's what I got.

I looked at the fuel lines and the evap line that go...
06-10-2014, 03:52 PM
Replies: 8
Views: 10,021
Posted By mwbrown4

I would check fuel by doing a fuel pressure leak...

I would check fuel by doing a fuel pressure leak down test. Rent a fuel pressure gauge at auto zone and test at the schrader valve which is at the rear of the engine bay with key on engine off....
06-10-2014, 03:46 PM
Replies: 19
Views: 14,241
Posted By mwbrown4

Thanks everyone for the advice and especially the...

Thanks everyone for the advice and especially the Captain for his exceptional knowledge on these vehicles.

Ok so after I had installed the new pump (AcDelco), CEL popped on after a little driving...
04-14-2014, 10:23 AM
Replies: 4
Views: 870
Posted By mwbrown4

To rule out your fuel system as your issue you...

To rule out your fuel system as your issue you must do a fuel pressure leak down test. Most auto part stores will loan you the gauge to do the test(auto zone for sure) for free. Just pay a deposit...
04-14-2014, 09:56 AM
Replies: 19
Views: 14,241
Posted By mwbrown4

Sorry for being such a late update, I haven't had...

Sorry for being such a late update, I haven't had the time to get under the truck and weather here in Chicago has been pretty crappy until recently, sooo I finally got the pump in and I actually went...
04-13-2014, 03:56 PM
Replies: 0
Views: 916
Posted By mwbrown4

Compression Test Results… Good???

Completed a compression test (Cyl. 3 huge PITA, had to remove steering shaft) Do these numbers appear to mean good compression in my engine? There was very little to no leak down after 5 minutes on...
04-13-2014, 02:39 PM
Replies: 0
Views: 1,641
Posted By mwbrown4

Differences between CA cat and 49 state cat????

I have a California emissions blazer and live in Illinois and was wondering if I replace my catalytic converter with a non California cat will it cause a CEL/lean mix/rich mix or any other issues...
02-12-2014, 05:18 PM
Replies: 19
Views: 14,241
Posted By mwbrown4

Thanks CaptainHook. My Delphi pump should be...

Thanks CaptainHook.

My Delphi pump should be here any day now and I was hoping that its possible to replace while the car is on the ground. I have a jack and stands so I can lift it up some. I was...
02-09-2014, 09:12 PM
Replies: 19
Views: 14,241
Posted By mwbrown4

Note* I also noticed the fuel pump started making...

Note* I also noticed the fuel pump started making a really loud noise
02-09-2014, 09:09 PM
Replies: 19
Views: 14,241
Posted By mwbrown4

Thank you Captain Hook for your quick response. ...

Thank you Captain Hook for your quick response.

I completed the test 2 times at the filter and got some interesting results.

Test 1

Pump Primed to 65 then after about a few seconds went down...
02-09-2014, 01:04 PM
Replies: 19
Views: 14,241
Posted By mwbrown4

Fuel System Delivery Issue

2001 Blazer 4x4 2 door

I'm pretty new to the forum and this is my first thread post. I love this forum and have used it many times before for other problems and thank everyone on here for all of...
02-05-2014, 04:18 PM
Replies: 48
Views: 5,289
Posted By mwbrown4

At this point my guess is as good as yours until...

At this point my guess is as good as yours until you pull the code.

I would guess that something possibly shorted out considering you said the whole underside was a block of ice.
02-05-2014, 04:10 PM
Replies: 12
Views: 1,736
Posted By mwbrown4

I had the same issue with mine. My intake gaskets...

I had the same issue with mine. My intake gaskets were leaking.

Here is a video I found on youtube that helped me through the process of getting the intake out.

GM 4.3 Vortec lower intake...
02-05-2014, 02:29 PM
Replies: 4
Views: 1,386
Posted By mwbrown4

I had the same problem. I just cut mine out but i...

I had the same problem. I just cut mine out but i don't recomened it. I would do it the proper way if i was you. I would have but just don't have the time.
02-05-2014, 02:23 PM
Replies: 13
Views: 1,529
Posted By mwbrown4

Recently changed my heater core and when taking...

Recently changed my heater core and when taking out the dash you have to remember to reconnect all the vacuum lines. I would suspect you forgot one.
02-05-2014, 02:17 PM
Replies: 19
Views: 4,045
Posted By mwbrown4

Not sure on the torque spec but when i did mine,...

Not sure on the torque spec but when i did mine, I made a few passes not tightening them too tight and just made them pretty snug. They don't have to be that tight. Tighten them too tight and you...
02-05-2014, 02:11 PM
Replies: 8
Views: 1,913
Posted By mwbrown4

Sounds to me like a fuel issue. Possibly a weak...

Sounds to me like a fuel issue. Possibly a weak pump. AcDelco or Delphi pumps are the way to go. Do the proper fuel system diagnosis to confirm your problem.
02-05-2014, 02:03 PM
Replies: 28
Views: 5,264
Posted By mwbrown4

I am currently experiencing a very similar...

I am currently experiencing a very similar problem, i agree with Captain Hook. Only use AcDelco or Delphi pumps, i had mine fail on me and i had a hole in the wall shop replace my pump and i believe...
02-05-2014, 01:55 PM
Replies: 5
Views: 608
Posted By mwbrown4

Had this same problem with my 4.3 Replaced...

Had this same problem with my 4.3

Replaced the fuel spider and changed the oil, no more fuel in oil!
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