Poor Idle and Stalling....
Thread Starter
Joined: Dec 2005
Posts: 8
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Poor Idle and Stalling....
Well the car is a 93 Blazer 4.3L and I'm having some trouble here. The car has a very poor idle quality, but it seems to clear up when I rev it. It also has a stalling problem, when the car does stall it takes about 5-10 min before it will start back up again. Anybody have any suggestions? BTW, the egr valve looks clean. HELP!!
Thread Starter
Joined: Dec 2005
Posts: 8
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RE: Poor Idle and Stalling....
Oddly enough, there was no codes! Where is the fuel pressure regulator located? Am I just checking for fuel at the vacuum line?
I remember hearing about leaks at the fuel lines/injectors or something like that. Do you have to take the upper and lower manifold off to access these, or is it just the upper manifold?
I remember hearing about leaks at the fuel lines/injectors or something like that. Do you have to take the upper and lower manifold off to access these, or is it just the upper manifold?
Starting Member
Joined: Jan 2007
Posts: 109
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RE: Poor Idle and Stalling....
i have/had the same peoblem i been puttu=in alot of cleaner in my fuel cause it might be ur feul filter too i put fuel sytem cleaner in and it helps but i still got the problem not as much though
Junior Member
Joined: Oct 2006
Posts: 457
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RE: Poor Idle and Stalling....
If it only happens when its in gear, I would look at that TCC for the trany.
If it happens even in park then it could be just about any part dealing with the fuel system. From the injectors to theACC to the Fuel pump
Can you add more to when its doing this?
If it happens even in park then it could be just about any part dealing with the fuel system. From the injectors to theACC to the Fuel pump
Can you add more to when its doing this?
Thread Starter
Joined: Dec 2005
Posts: 8
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RE: Poor Idle and Stalling....
It doesn't really happen at any specific time, it just stumbles and runs very poorly, and after a few minutes of driving it will just stall. I don't think its the TCC because it won't start in park or neutral after it stalls, it will just keep cranking until you let it sit for a few minutes. I'm going to get a fuel pressure gauge on monday and see whats going on there. What should the fuel pressure read on this engine?
Junior Member
Joined: Oct 2006
Posts: 457
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RE: Poor Idle and Stalling....
ORIGINAL: slayer6x6
It doesn't really happen at any specific time, it just stumbles and runs very poorly, and after a few minutes of driving it will just stall. I don't think its the TCC because it won't start in park or neutral after it stalls, it will just keep cranking until you let it sit for a few minutes. I'm going to get a fuel pressure gauge on monday and see whats going on there. What should the fuel pressure read on this engine?
It doesn't really happen at any specific time, it just stumbles and runs very poorly, and after a few minutes of driving it will just stall. I don't think its the TCC because it won't start in park or neutral after it stalls, it will just keep cranking until you let it sit for a few minutes. I'm going to get a fuel pressure gauge on monday and see whats going on there. What should the fuel pressure read on this engine?
Did you try letting the truck idel in park for about the same amount of driving time it takes for it to stall out?
This would help in a trouble code showing up. And where is the gas gage sitting at when this happens? (1/4, 1/2, 1/3, full)
Junior Member
Joined: Oct 2006
Posts: 457
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RE: Poor Idle and Stalling....
ORIGINAL: Jimmysls98
mine does it in park and in drive then i rev it in neutral and then in come back. Fuel????
mine does it in park and in drive then i rev it in neutral and then in come back. Fuel????