Auto-Forums.net

[Ken Weitzel]

Hi...

A question, if I may?

This thread about a Cavalier that idles too fast
got me to noticing...

My winter car, no matter the temperature, whether it's
-40 degrees, or it's been driven an hour, always
starts the exactly the same.

Starts at what feels like about 1000 rpm, stays there
for perhaps 5 seconds, then slows to about 600. At that
point it's idling rough, feel the engine in the steering
wheel.

Add to that, mileage is incredibly bad; though I'd put
that down to warm up idling, and short trips, few and
far between.

Is it worth wondering if the coolant temp sensor should
be preventing it from slowing until it's warmed a bit?
No codes set; should I change it just to see?

Thanks in advance for any tips.

Ken