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Longer cranking when engine warm

Tiny
PAMELAX0X
  • MEMBER
  • 1992 CHEVROLET LUMINA
  • 200,000 MILES
Van starts no problem when cold, longer cranking when engine warm, and sometimes backfires under the hood, doesn't always idle smooth and poor gas mile. Have had 02 sensor, map sensor, fuel filter and plugs replaced all of which I was told would fix problem, It's not fixed and is just getting costly, any help would be greatly appreciated. Thank you
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Tuesday, May 15th, 2012 AT 8:09 PM

10 Replies

Tiny
PAMELAX0X
  • MEMBER
  • 6 POSTS
Was told to change crank/cam shaft sensor does this sound like the problem?
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Tuesday, May 15th, 2012 AT 8:12 PM
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Try reading codes in computer.
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Tuesday, May 15th, 2012 AT 8:16 PM
Tiny
FIXITMR
  • MECHANIC
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What motor is it?
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Tuesday, May 15th, 2012 AT 8:17 PM
Tiny
PAMELAX0X
  • MEMBER
  • 6 POSTS
No codes engine light has not come on since 02 sensor was changed, motor is 3.8L v6
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Tuesday, May 15th, 2012 AT 9:11 PM
Tiny
FIXITMR
  • MECHANIC
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Possible vacuum leaks EGR issues.
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Tuesday, May 15th, 2012 AT 9:25 PM
Tiny
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Also temp sensor and TPS should checked. Is the problem steady or intermittant?
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Tuesday, May 15th, 2012 AT 9:31 PM
Tiny
PAMELAX0X
  • MEMBER
  • 6 POSTS
The problem is intermittant, it was stalling out while driving but would start up no problem, has stopped stalling now
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Tuesday, May 15th, 2012 AT 9:48 PM
Tiny
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Could also be ignition module. They can be removed and tested.
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Tuesday, May 15th, 2012 AT 10:31 PM
Tiny
PAMELAX0X
  • MEMBER
  • 6 POSTS
Thank you for your help =) if you were me where would you start, been to a couple different mechanics had few things changed and was told would solve the problem. Did not solve the problem but they have no problem taking my money, and suggesting something else.
Thanks for your time.
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Tuesday, May 15th, 2012 AT 11:12 PM
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Local craigslist come to you mechanics are generally easier on the wallet? Look under services.
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Wednesday, May 16th, 2012 AT 5:41 AM

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