What is your question?
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What is your question?
Just noticed a burning plastic smell coming from my air vents and my temperature gauge tries to go to 210 when I'm in motion but when I idle it goes between 160 and 210. It is a 2008 GMC Sierra 1500 and the only recent thing I've had to it was putting a new alternator in it. I haven't noticed any funny noises or leaks and nothing has popped up on my message board
How long has your 2008 GMC Sierra 1500 had this problem?
Just started today
1 Reply
Hello, I would suggest trying to determine the actual engine temperature before taking the gauge for granted that it's telling accurate information. 160 would be way too cold for an engine "at operating temperature" - so there's either going to be a cooling system issue or a temperature sensor issue. None of this is going to be related to the burning plastic smell. I would suggest checking the exhaust system under the vehicle to see if there is indeed a plastic bag stuck underneath. It happens! Then it burns off slowly and this smell can enter the cab through the ventilation system. You may also want to check the cabin air filter (if your truck has one) and see if there is debris in there causing the smell. If you would like some advice near you, try a local shop: https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.