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2003 GM 3.8 coolant leak
Posted to Technical Tips Forum on 1/21/2009 8 Replies

85k miles, tensioner failed last weekend. Vehicle has been using ~2 quarts coolant every 5k miles for the last 10k miles.

GM has 2 SI postings(replace TB nuts + add leak tablets, upper intake gasket + inspect for leaks, replace upper manifold if leaks are fo... Login to read more.

8 Replies Received (View Replies)

 

car Vehicle Data

2003 Pontiac Grand Prix GT 3.8L

Engine3.8 L
Trans4-speed Automatic (Electronic)

car Vehicle Data

2003 Pontiac Grand Prix GT 3.8L

Engine3.8 L
Trans4-speed Automatic (Electronic)