I have the same problem with buick rendevouz... it read coolant temp hot on 2002 Buick Rendezvous

and engine oil level low but it was oil in there. It would run hot while sitting idle but when it was driven it cooled down.... it got alright for a while then it did it again this time engine shaking white smoke out the exhuast pipe and smells of coolant .. then thereb is something with the driver side wheel. it had the brakes done but there is something wrong where it knocks off the awd and disables it almost like i cant stop, vwhat could all this be and howv much for repairs? but it has been dwon for 6 moths anyway until i get the mmoney to get it fixed

by in Kernersville, NC on February 24, 2012
2 answers
ANSWER by on February 24, 2012
SOUNDS LIKE YOU HAVE BLOWN A HEAD GASKET THE COST CAN VERY DEPENDING ON WHY AND INTERNAL DAMAGE.ALSO SOUNDS LIKE YOU MAY HAVE A BAD FRT HUB ASSEMBLY. THE HEAD CAN GO FROM 2000.00 TO 4000.00 AND THE HUB ASSM IS ABOUT 400.00
ANSWER by on March 06, 2012
Had EXACTLY the same thing happen to me a week ago. Had the check engine code identified as a p0410 code indicating a problem with the secondary air injector pump. Auto repair shops wanted up to $400+ to repair this depending on who you go to. Here's a few things you can try that may save you a considerable amount of money. First check the fuse and then the relay before tearing into the pump. The relay is next to the fuse (next to the battery). I had a bad relay and replaced it in 15min for around $20.