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1980 Chevy Malibu Sputters After Shut off

Tiny
KORNYRUCKUS
  • MEMBER
  • 1980 CHEVROLET MALIBU
Engine Performance problem
1980 Chevy Malibu 6 cyl Automatic 76,000 miles

It doesn't always happen, but when I drive for more than 15 minutes, then shut my car off, it sputters for a while, before finally going quiet. I turned the key back on while it was sputtering, and the engine immedeately caught back up and idled. How can I fix this?

James
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Monday, May 25th, 2009 AT 10:44 PM

3 Replies

Tiny
RHALL77
  • MECHANIC
  • 3,361 POSTS
Sounds like your carb is running rich. I would suggest trying to lean the carb settings and see if that works. You may also want to have your timing check and make sure the engine is in time.
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Friday, May 29th, 2009 AT 11:38 AM
Tiny
MIKE H R
  • MECHANIC
  • 3,094 POSTS
It is what they call dieseling. It is where the engine keeps firning after the ignition is shut off. Check the timing or try using a lower octane gas that is if you are useing a higher octane. The temp guage read normal? Sometimes have seen a little buld up carbon that gets hot inside the engine and will make it diesel.
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Friday, May 29th, 2009 AT 11:43 AM
Tiny
KORNYRUCKUS
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Thanks for pointers, I'll use both suggestions. I really appreciate the help.
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Saturday, May 30th, 2009 AT 10:38 AM

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