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2000 Sunfire

Tiny
CUSTER
  • MEMBER
  • 2000 PONTIAC SUNFIRE
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 140,000 MILES
I have a 2000 pontiac sunfire that only starts if you hold the gas pedal to the floor. It idles rough and has white smoke comming from the exhaust that smells like sulphur.
Saturday, March 12th, 2011 AT 1:22 AM

3 Replies

Tiny
BOBBIJOJONES
  • MEMBER
  • 14 POSTS
Mine is doing the same thing did I was told by a friend it was the cat converter but is there a way to tell before spending all that money to fix it
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Tuesday, March 15th, 2011 AT 1:51 AM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Usually if you hold the pedal down, it leans out the fuel system. Use a gage and check fuel pressure. Also, see if pressure holds after pump stops.

If think there is an exhaust issue, drop the exhaust, see if it idles any better? Any applicable trouble codes? How long since a tune-up?
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Saturday, June 11th, 2011 AT 8:29 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
The white smoke sound like coolant getting into the combustion chamber.
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Saturday, June 11th, 2011 AT 8:30 PM

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