# 89 Chevy S10 2WD 4.3L Doesn't Start When Warm

**URL:** <https://community.cartalk.com/t/89-chevy-s10-2wd-4-3l-doesnt-start-when-warm/30097>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet, start\
**Created:** [May 6, 2009, 1:35am UTC](https://community.cartalk.com/t/89-chevy-s10-2wd-4-3l-doesnt-start-when-warm/30097 "2009-05-06T01:35:48Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![bigink00](https://avatars.discourse-cdn.com/v4/letter/b/a3d4f5/32.png) [@bigink00](https://community.cartalk.com/u/bigink00)\
**Post date:** [May 6, 2009, 1:35am UTC](https://community.cartalk.com/t/89-chevy-s10-2wd-4-3l-doesnt-start-when-warm/30097/1 "2009-05-06T01:35:48Z")

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I just bought an 89 S10 pickup 4.3 liter 4x2 with 114,000 miles. The truck sat for 6-9 months, only being run in the driveway for a few minutes at a time. The truck starts right up after it has sat overnight to cool down. After it has run for as little as 5 minutes and shut off it will not restart (just cranks). It acts like it has no spark/ignition. It does spray fuel into the intake and i can smell fuel when i crank it. I drove it about 40 miles today with no problems until i turned it off, and it didn’t restart, it has been 3 hours and still won’t start. IT did the same thing yesterday after driving about a mile, ran fine until i shut it off and tried to restart. it sat overnight and fired right up in the morning. I haven’t tried to do anything yet, I want to see if anyone else is having these problems, or can help. Thanks very much in advance.

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**Author:** ![cigroller](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@cigroller](https://community.cartalk.com/u/cigroller)\
**Post date:** [May 6, 2009, 3:41am UTC](https://community.cartalk.com/t/89-chevy-s10-2wd-4-3l-doesnt-start-when-warm/30097/2 "2009-05-06T03:41:16Z")

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“It does spray fuel into the intake and i can smell fuel when i crank it.”

Right, but maybe you have too much fuel. Given no reference to a carb I’ll assume fuel injected. If so, then you might have either a leaky pressure regulator or leaky injector(s) that are actually flooding the intake on warm restart. Try starting it as if flooded - floor it and turn the key, let up slowly if/as it fires. If that works, pull the vacuum hose from the pressure regulator - if you find any liquid fuel in the vac hose, replace the regulator.

Another likely cause is breakdown of ignition components b/c of heat - get a spare plug or a spark tester that you can hook up when this happens. See if you have spark.

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**Author:** ![mr\_josh](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mr_josh/32/3008_2.png) [@mr\_josh](https://community.cartalk.com/u/mr_josh)\
**Post date:** [May 6, 2009, 12:02pm UTC](https://community.cartalk.com/t/89-chevy-s10-2wd-4-3l-doesnt-start-when-warm/30097/3 "2009-05-06T12:02:34Z")

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Good answer.