1997 OBW 257000 miles (60 K new engine). It is between 15 and 25 degrees F outside. Blu aparently doesnt like being cold as his idle speed in this weather is 1500 RPM. He starts fine, so I am ruling out a bad coolant temp sensor. I am leaning towards a sticking or frozen Idle Air Control Valve. IOn the last year the IAC has been sticking (cycling the AC on and off usually cleared it but it wont now).

 

I dont have a garage so I am not going to spend alot of time on this. I am a firm believer in heated indoor areas in this weather

 

Happy new year.

 

nipper

You probably already know this but i would shoot brake cleaner at it: excellent cleaner and does'nt leave any residue.

Happy new year!

Actually i didnt think of that. i will do it once we get our winter thaw.

 

 

nipper

If all else fails, remove two screws and pry the top off the IAC and inspect the magnetic shaft...mine was fractured, cleaned the broken shaft chips off and it runs fine (2500 rpm down to normal...1500 at cold start, 700 or so when warm) had a CEL and code though...