Will not idle while cold

SimpleIcon

Brigadier General
Well, if you're here then you probably have an idea of what is wrong so heres some interesting details:

As soon as I turn it on, it goes to 500 rpm instead of 1200rpm (like a cold starting engine should)

It's not throwing any codes.

After keeping the idle up for ~10mins (you can almost set your watch to this), the coolant temp gauge will finally jump from 0 to ~190-230F (normal) in 2 seconds flat (VERY QUICK). The gauge doesn't show a slow build of heat. This leads me to believe my thermostat is FUBARed... Oh, and its full of coolant and burped.

Could the thermostat cause the computer to not detect a cold start? cause thats what appears to be happening... surely not. Either way, after the temp gauge hits the 200s, it will idle at 750rpm with out ANY problem.

This is weird. Any help is appreciated
 
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N

NDBoost

Guest
you know my car was acting up this morning, it stumbled until it got warm. IT was pretty cold out today but id gas it and it would hesitate and then take off. but after it warmed up it ran like a champ