HARD TO START WHEN HOT.

  • Tiny
  • Hrob
  • 2000 CHEVROLET SILVERADO
  • 119 MILES

I have had a problem with hot starts with my 2000 Silverado 5.3 engine.
It starts right up when cold or within 5 minutes of running at fully hot.
Aftger 5 minutes or so, it takes turning over up to 10 seconds before starting and then it idles rough for a short time. I took it to the closest Chevy dealer and they checked it over and were perplexed having never had a problem like
that. They check the computer, checked the fuel pump (good pressure), cleaned out the fuel line and installed a new fuel filter. I put this on the internet and someone said it was the Engine Coolant temperature sensor.
I changed that today but I still have the problem. ANY IDEAS?

Thanks
hr

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Friday, March 23rd, 2012 AT 4:29 PM

1 Reply

  • Tiny
  • Hmac300
  • EXPERT
  • 45,686 POSTS

Check the crank an dcam sensors for ohms. If resistance to high replacewhich one has the high resistance. Tehse can do this without setting a code. Also clean your throttle plate with choke cleaner on both sides as well as iac hole.

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Friday, March 23rd, 2012 AT 4:53 PM

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