why does my 99 chev s-10 blazer die once it heats up

Asked by Dec 23, 2013 at 07:29 PM about the 1999 Chevrolet Blazer

Question type: Maintenance & Repair

5 Answers

the intake air sensor will cause the mix to enrich until it chokes and will not start~ http://www.summitracing.com/parts/acf-213-243? seid=srese1&gclid=CPHSuovYx7sCFYlAMgod9BUAPQ

19,485

have someone check to see if the temp sensor for the computer is bad. The IAT sensor above doesn't have enough influence to make the engine die. Next things I'd suspect is the upstream o2 sensors, ign coil, or ign control module. All of which can be checked. O2's can be monitored by a scan tool and the ignition components can be tested at autozone.

70,845

Sounds like an ignition coil or ignition control module is breaking down when it gets hot. They'll do that sometimes when they're dying. Run fine when cool or cold but die as soon as they heat up. HTH. -Jim

1 of 1 people found this helpful.

seen this condition before? Jim?~

70,845

Yes, Judge, a couple times. -Jim

1 of 1 people found this helpful.

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