502 hard to start when cold
#1
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I have a 2000 model 502 EFI that is hard to start cold after it has sat all week and over night. Once it starts i dont have a problem with it the rest of the day. I'm just looking for some suggestions on what it might be that i need to look into. Thanks
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I found a focused effort to only use no-alcohol fuel and use of a fuel treatment improved starting and initial start smoke markedly on my carb 454.
I started with Lucas fuel treatment and had good results but switched to Conklin fuel mate plus due to it having both fuel stabilization and cleaning properties. (and a buddy was pushing the Conklin as a dealer)
I started with Lucas fuel treatment and had good results but switched to Conklin fuel mate plus due to it having both fuel stabilization and cleaning properties. (and a buddy was pushing the Conklin as a dealer)
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taking the injectors out and cycling them with cleaner backwards often fixes the leaking issues.
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I'd put a fuel psi gauge on it, and see how long the fuel psi holds with engine off. Like steve says, sounds like the psi is leaking off, thru a injector, o ring, or even a valve in the fuel pump.
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I had the same problem, I found if I rubbed my hands together really fast then place them on a big set of boobs she fired right up. OOPS wrong thread....
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Ok i've only had a chance to try turning the key on 4 or 5 times letting the pump run each time. Unfortunately this didn't help any. Still took along time to start.
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Ignition control module going bad? I would have to crank and crank my engine to get it to fire unitl I just replaced it. There was also a lack of upper rpms and hesitation in the throttle.