Mechanics

CUTTING OUT

1993 Pontiac Sunbird

Engine Performance problem
1993 Pontiac Sunbird 4 cyl Two Wheel Drive Automatic

My problem is that my car is cutting out. I have had the injectors looked at, and was told nothing was wrong with them. The last time I put gas in my car, I put in super and it seemed to help quite a bit. What else could be wrong?
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Irene Davis
May 14, 2010.




How long since a tune-up? Are there any applicable trouble codes? Use a gage and check fuel pressure. Some of the national brand auto stores used to loan out a fuel pressure gage, if you don't have one. Does it cut-out at idle or running down the highway?
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Tiny
Internetmechanic
May 14, 2010.
It cuts out when running down the road. We just had the injectors cleaned and it seemed to help, but we may need a complete tune up.

Thank You

Tiny
Irene Davis
May 17, 2010.

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