Folks: Sanity check. I've got a 1999 Buick Century where the temperature guage is fluctuating all over the place. I'll be running real hot (red light) when going slow or stop and go. It'll fall back down to the middle range when moving faster (like on the highway)... But in general it moves all over the place.
The guy at the garage says the thing is full of corrosion and he wants to "rod it out" and when he got it apart, he said the reason the thing was so corroded was some seal was leaking air (manifold seal???), so now he wants to replace that too.
Questions: Does this sound plausible and what is a reasonable amount to pay? I think this is going to end up in the $900 range before its all over and this is just not in the budget... Thanks for any input!!