UIM ID and Thermostat question.
Hi everyone! Thanks for sharing all your knowledge, I have learned alot since finding this site! I have owned a 98 Bonneville SE for about 3 months. I have 41K on the clock. I have read numerous posts about the UIM failures so I took the heat shield off my car and it appears to have been replaced on 9-04 (or at least that is the date stamped on it). My question is how do I know what brand this UIM is? Also do GM, others make an "improved" UIM that supposedly last longer?
Also I have seen people post that they have put a 180 thermostat in. What exactly is the purpose of this and should I be looking to do this?
I have not had any other problem thus far with the car and am very happy with it to this point. I just want to keep a close eye on this UIM thing. Is there anything else I should be doing or looking out for? Thanks again everyone and have a Happy New Year!! Chad