2000 Oldsmobile Alero Hesitation

Tiny
SHURSIRECAT
  • MEMBER
  • 2000 OLDSMOBILE ALERO
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 230,000 MILES
Hello I have a 2000 oldsmobile alero with over 200000 miles on it and when I start the car in the morning it hesitates and the rpms wobble between 500 to a 1000 and it sounds like the car is going to die. Now the thing that I dont get is there is no service engine light on and after the car is warmed up it is fine please help
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Monday, May 17th, 2010 AT 5:06 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
If there is no light, start by looking for vacuum leaks. Also, remove the EGR and check to see if it is plugged with carbon. Also, make sure the EGR valve is working properly.

Let me know what you find.
Joe
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Tuesday, May 18th, 2010 AT 1:41 PM
Tiny
SHURSIRECAT
  • MEMBER
Thank you for the info, now how would I check for vaccuum leaks can u hear it sucking air or how would I go about that and where is the egr valve
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Sunday, May 23rd, 2010 AT 6:20 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
If you are lucky, you will a hissing when the engine is running. Also, do a visual inspection to make sure there are no hoses off, dry rotted, or damaged.

Finally, and I don't like to tell this way, you can use starting fluid or carb cleaner to find them, but you must be careful. What you do is with the engine running, you spray around the vaccum hoses, intake. If you hit a vacuum leak, the engine will rev up on its own. My concern telling this to people is the fact that either choice, starting fluid or carb cleaner, are very flamable. If you hit a spot on the engine, for example the exhaust manifold, it could catch fire. If you do this, make sure to have a fire extinguisher near by that is designed for oil or grease fires. DO NOT EVER SPRAY WATER ON AN ENGINE FIRE. It will make it worse.

Let me know if you have other questions. I didn't mean to scare you, but I wanted you to be aware that it can happen.

Joe
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Sunday, May 23rd, 2010 AT 11:11 PM

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