1991 22re lack of fuel pressure....
#1
1991 22re lack of fuel pressure....UPDATE PROBLEM SOLVED
1991 22re 4x4
Truck starts and runs for a sec then dies. I used the diagnostics jumper to test fuel pressure. With a fuel pressure gauge hooked up at the fuel line where the cold start injector is,key in the on position,insert jumper wire I am getting 58 psi,take out the jumper pressure falls to 40 immediately.I think the reason I get good fuel pressure at the diagnostic test is everything is by passed and applying 12v straight to the pump.
If I start the truck the pressure goes to 30 then rapidly falls to zero and truck dies.
Bad fuel pump?
I don't want to just throw parts at it.....I want to figure out what the problem is. Seems like a lot of knowledge here hope some one can help.Thanks
Truck starts and runs for a sec then dies. I used the diagnostics jumper to test fuel pressure. With a fuel pressure gauge hooked up at the fuel line where the cold start injector is,key in the on position,insert jumper wire I am getting 58 psi,take out the jumper pressure falls to 40 immediately.I think the reason I get good fuel pressure at the diagnostic test is everything is by passed and applying 12v straight to the pump.
If I start the truck the pressure goes to 30 then rapidly falls to zero and truck dies.
Bad fuel pump?
I don't want to just throw parts at it.....I want to figure out what the problem is. Seems like a lot of knowledge here hope some one can help.Thanks
Last edited by tackman331; 01-17-2011 at 02:32 PM. Reason: PROBLEM SOLVED
#2
No one???????????
I have searched this forum and I have came across several threads with the same problem without any solutions. The only one possible that was close was a guy had an electrical problem in the wiring harness to the injectors.
Truck starts then immediately dies.
I have searched this forum and I have came across several threads with the same problem without any solutions. The only one possible that was close was a guy had an electrical problem in the wiring harness to the injectors.
Truck starts then immediately dies.
#3
Most people would change the fuel filter first, since that's considered preventive maintenance anyway. It's a a PITA, but something you probably ought to do if it's been more than 50-60k since you did it last.
However, my suspicion would be the fuel pump. Maybe a local parts store would be able to test it for you. Have you called around and asked about that? Plus, I don't think fuel pumps are very expensive either, maybe 50 bucks. So even if that ends up not being the problem you've done some PM.
Who knows, you might take the pump out and discover it's obviously clogged and/or not working.
However, my suspicion would be the fuel pump. Maybe a local parts store would be able to test it for you. Have you called around and asked about that? Plus, I don't think fuel pumps are very expensive either, maybe 50 bucks. So even if that ends up not being the problem you've done some PM.
Who knows, you might take the pump out and discover it's obviously clogged and/or not working.
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Glad she's back up and running did you have any other problems that the melted wires were causing that are now fixed?
Also it might be a good idea to update the original post with the solution and/or the thread title so maybe it'll help someone in the future.
Also it might be a good idea to update the original post with the solution and/or the thread title so maybe it'll help someone in the future.
#11
How do you update the original post?
#12
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