Hairdo12 Posted August 12, 2009 Report Share Posted August 12, 2009 OK, I need some help. I've done some searching about cold start issues and none seemed to help my situation. This is for my 92 Lumina with 3.1. Now its summer time, the temp doesnt dip below 60 often and I keep my car in a garage over night. It doesn't matter if it rains or if its perfectly clear outside either. My car just doesn't like to wake up in the morning. I'll crank it and it'll stumble and stall. Then I'll crank it a little more and it'll stumble for a few seconds and then catch 2 out of 3 times. If it sits for two days its even harder to start and so on if it sits longer. After an 8 hour work day and the engine cold, it'll start just fine however. Once it starts running it runs like a champ. The fuel pump primes and the pressure is good. I cleaned the EGR and throttle body and tried a spare IAC. Plugs and wires are two years old and check out just fine. ICM and coil packs are three years old. Gasoline is a week old. The battery is five years old, but cranks just fine. I've even tried an idle relearn with no luck. This has been consistant for about four weeks now...I'm running out of idea and just thankful I have another car to drive because I'm worried that one day it'll stop starting all together until I can fix whatever is wrong. Quote Link to comment Share on other sites More sharing options...
1990lumina Posted August 13, 2009 Report Share Posted August 13, 2009 When you checked fuel pressure did it bleed off with the key off? You shouldn't lose more than 1 or 2 psi over a certain amount of time. You're injectors could be leaking and flooding the cylinders with fuel every time you try to start it. My 3.1 Lumina injectors were all fucked in one way or another and it was hard to start in cold weather - although in summer it was alright still. Quote Link to comment Share on other sites More sharing options...
dylan1630 Posted August 13, 2009 Report Share Posted August 13, 2009 I had a bad starter on my grand prix and it was dificult to start it up... just an idea Quote Link to comment Share on other sites More sharing options...
jeremy Posted August 13, 2009 Report Share Posted August 13, 2009 I had a bad starter on my grand prix and it was dificult to start it up... just an idea his car cranks so it isn't the starter Quote Link to comment Share on other sites More sharing options...
19Cutlass94 Posted August 13, 2009 Report Share Posted August 13, 2009 I was kinda thinking maybe FPR. Quote Link to comment Share on other sites More sharing options...
Hairdo12 Posted August 13, 2009 Author Report Share Posted August 13, 2009 This morning I tried something different and just stuck the key in and immediatly tried to start it without letting the fuel pump prime. It did a little stumble but started on the first try. I'll try it again tomorrow morning... maybe if I start getting some consistancy, the flooding the engine with fuel theory might sound like a place to start looking. Quote Link to comment Share on other sites More sharing options...
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