By any chance when you are driving and you start pushing it harder do you hear an type of crackling noise coming from the bottom of the truck, get under the truck aswell with a rubber mallet or even your hand bang on the converter body it self and see if you hear something loose in the converter.

 

I will do that. I thought I had it fixed but the symptoms have returned. I replaced the intake gasket set after finding that it was leaking around the injector area. But 5 days later its back

 

best of luck brother

 

problem identified: vacuum leak around the injector pod. problem is that the pod is not secure in the bracket thats suppose to hold it. So high vacuum is pulling it into the intake causing all of these problems. Is there any way to fix it?

 

The metering block snaps into the bracket. The bracket has a slot where the mounting screw goes through and into the lower intake. The slot allows the bracket and metering block to move so it will align with the upper plenum. If it's leaking vacuum, the metering block is not fully seated upward into the plenum. Did you oil the O ring before installing the plenum?

 

Hey man you also need to check you vacuum lines if mine was doing the same thing and it turned out to be a bad vacuum leak.

 

Yeah I oiled the o ring as well as the plenum before the install. I was thinking that the bracket may be loose and it came uncapped. I have already checked all the vacuum lines. When I got the truck the guy says ohhh yeah 4X4 works great. Bull crap. The indicator never came on I knew better so at that time I had to trace all the vacuum lines. We bought this last December and the guy said runs great drives great. 1500 dollars later we were able to get it inspected. I just wanna go to that liars house and get my moneys worth outta him. If we hadn't needed a vehicle for my wife to drive and specifically a four wheel drive SUV. Then I'd have bought something else. Needless to say im in the process of a frame on restoration. Grrrrrr

 

alright it's been a while since I have had a chance to work on this because of the weather (no garage) So Here's where I am. This thing is flooding something awful. The cat isnt even heating up because were getting raw fuel to the tail pipe. There's no fuel in the oil, I have however had it changed. I changed the plugs wires cap and button when we bought it. I replaced the spider a month ago and still the same thing. It looks like the spider has dropped down some, so it must be leaking air there. Are there different brackets? Just a thought. Even when assembled it doesnt look like it goes all the way up. Also, I tested the fuel pressure today and here's what I found:

-Initial connection shows no pressure after 2 hours of sitting
-Key on brings it to 60 psi
-Pressure drops to 10 psi within 15 seconds of the pump shutting off (Bad I know)
-Cranking brings it back to 60 psi
-Idling brings the pressure to 72 ( Which looks like a cylinder out on a top fuel dragster)

I believe gm's have a check valve in the tank so I'm going to have to pull the top back off again and check for leaks. Thoughts about the spider not sealing properly? I don't think Idle pressure should be 70 psi.

Thoughts theories and ideal's welcome.

Don't suggest dynamite, I'm mad enough at it, I don't need temptation. LOL

 

If you're seeing fuel at the tail pipe, it's in the oil too, guaranteed. Idle fuel pressure at 70psi is the reason! We need to figure why it's so high.


This thread explains how to test fuel delivery. Do the tests and post all 4 numbers. https://blazerforum.com/forum/2nd-ge...eakdown-88305/


The results will tell us where to find the problem.