My 1999 Pontiac Montana is leaking antifreeze. The temperature is going up and then go back down. The dashboard is cracked. It is running sluggish. I triedputting sealant block to help but nothing is working. It is shaking when it is sitting still in park. What could be the proble?
have the same problem?
Monday, November 15th, 2010 AT 5:11 PM
If you have a check engine light get codes read.
Have compression test performed to check head gaskets, if OK, then perform a cooling system pressure test to isolate leak.