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C5 misfire issue

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Old Oct 17, 2016 | 06:07 PM
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Default C5 misfire issue

Sorry for the lack of info in this post but it's on behalf of my roommate. Her 2000 Corvette has recently had strange issues regarding a misfire. Under load and sometimes even randomly under load it will misfire. She took it to the dealer who had it for 4 months and performed maintenance on it (see picture) and failed to figure out what the issue was. Today she picked it up and it ran just fine up to 100mph. Still trying to figure it out but any advice will help. All info is in the picture.

Car is a 2000 auto. Only mod is a catback exhaust.

Last edited by Kadorja; Oct 18, 2016 at 04:04 PM.
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Old Oct 18, 2016 | 04:50 AM
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Mine had chafing in the wire harness. If you google wire harness chaffing there is a lot of info. I replaced my wire harness because my engine had to come out but they can be repaired.

You may want blot out her number and email from the picture.
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Old Oct 18, 2016 | 07:23 AM
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That's so typical how a dealership handles some problems...they had the Vette for four months. Wonder what they charged her for the non-fix.
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Old Oct 18, 2016 | 04:06 PM
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Originally Posted by runner140*
That's so typical how a dealership handles some problems...they had the Vette for four months. Wonder what they charged her for the non-fix.
It was originally $800 for the ECU but they removed it since it didn't fix anything and didn't charge her a dime which is nice. It's not my favorite dealership. I brought my C6 to them but decided not to let them work on it.
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Old Oct 18, 2016 | 04:21 PM
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https://www.corvetteforum.com/forums...al-things.html
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Old Oct 19, 2016 | 10:16 AM
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Originally Posted by Kadorja
It was originally $800 for the ECU but they removed it since it didn't fix anything and didn't charge her a dime which is nice. It's not my favorite dealership. I brought my C6 to them but decided not to let them work on it.
A dealership that can't fix a problem and tie up a car for four months....is very expensive.
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