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No start when engine's hot

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Old May 8, 2011 | 06:41 PM
  #21  
MaSTeRofDZaSTeR's Avatar
MaSTeRofDZaSTeR
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From: "Drive like Hell, you'll get there faster." Tucson AZ
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Originally Posted by CouchJ85
Switched ICM, with no luck. Pulled plugs and cleaned, new wires, new ICM. I replaced fuel injectors 2 weeks ago, and she was running well. Did not drive for 3 days (rain), and now won't start. There is fuel in the fuel rail...so, should I try another ICM?

Jeff


I remember them saying to have it tested(The icm). You could have also got a crappy one possibly since it seems to be a generally common deal for it to happen considering the common auto parts stores are all stocked with them but they should last a while if they're good. I'd have them test the one you get before you install it if there's a way. I know they say theres a way for them to test the one in your car as to whether or not its your prob. Also if you're cranking and not starting I'd think this is the case where something as simple as a clogged filter could do it from what Ive heard. Might be fuel filter(should change em about once a year atleast I was told) and/or check air filter pcv valve and make sure intake's generally not black with some top engine cleaner to be safe. Also check fuel pressure with a with a gauge just to be on the safe side since you replaced the injectors.
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Old May 8, 2011 | 09:09 PM
  #22  
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Nothing worse than a problem that you can't replicate in the garage. The likelihood of it not starting is directly proportionate to how badly you need the car to start.
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Old May 8, 2011 | 10:34 PM
  #23  
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I do not have a fuel gauge that checks pressure...I feel so unworthy! I'm still thinking it's the ICM that keeps my engine from firing. Even after switching, I have the same problem, so I unplugged it to both see/hear the difference...there is none. I'm taking both ICM's into the dealership tomorrow so I can get them tested. For some reason, electricity and me do not mix well.
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Old May 9, 2011 | 08:18 PM
  #24  
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From: Okeechobee FL
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I had the same issue with my 1990 and I installed a Remote Starter Relay and I have never had the issue again. It cost around $30 (from Summit Racing) or so and only took about 15 minutes to install. I posted pictures of the installation here on the forum about 6 months ago or so. It has worked perfectly ever since. From what I understand, it is an Old School fix for the problem with a Heat Soaked Starter.
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Old May 11, 2011 | 02:26 PM
  #25  
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i have a 92 and had this same problem when it would get hot out and i drove the car i could not restart it because the starter was to hot i had to put header wrap on my headers and a heat shield on the starter to fix this problem. now i just get a weak start when it's really hot.
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Old May 11, 2011 | 11:57 PM
  #26  
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From: Okeechobee FL
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Originally Posted by Powersmokin
i have a 92 and had this same problem when it would get hot out and i drove the car i could not restart it because the starter was to hot i had to put header wrap on my headers and a heat shield on the starter to fix this problem. now i just get a weak start when it's really hot.
I did the above as well. The addition of the Remote Starter Relay sends additional amperage (or whatever) to the starter to overcome the Heat Soaked condition. I am now less apprehensive about taking the Vette out.
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