Engine idling high
I am a new Celica owner, When I first bought the car I had to replace the engine due to a bad transaction with the previous owner. Anyways, after the new engine was installed new problems showed up.
The new engine now seems to make not a rod knocking knows, but more of a tick tick tick. Like how it would sound in the old movie theatres if you were watching a movie. The engine also seems to run kind of loud. The engine also seems to idle kind of high around 2000RPM.
There are times when the idle will drop from 2000RPM down to about 1400RPM, slowly climb back up and drop again.
And yesterday the car shop told me that my car is at risk for my head gasket blowing, they claimed it was spewing out white smoke, but I havent seen hardly any. There are times when the car will say its running all the way hot, but the fluids are not boiling. And then the temperature drops back down to normal. Then there are times when it says it is running hot and the fluids are boiling. Also some days the heat chooses not to work.
Now first, you have to understand that the previous owner had everything completely screwed up wiring wises.
I need suggestions, please help! Thank you!