Change the coolant temp sensor.
Thanks, Rog, we'll look into that.
Update: my son's car has another symptom--do you think it's
related to the above? After he starts it, when it is in Park or
Neutral, sometimes it revs up repeatedly, without him
touching the gas pedal or doing a thing.
This revving stops when he puts the car in Drive.
Any ideas? Thanks.
.Philip. - 28 Dec 2004 18:02 GMT
> Thanks, Rog, we'll look into that.
>
[quoted text clipped - 5 lines]
>
> Any ideas? Thanks.
Lean roll. Sometimes a symptom of a "lethargic" O2 sensor response. Can
also be a dirty IdleAirController valve. Neither will trip a Check Engine
light at this stage. The O2 Dynamic Resonse Test is outlined in the shop
service manual.

Signature
- Philip