My silverado goes through coolant like crazy but I have never had a leak anywhere. Where is all the coolant going so quickly?

Asked by Apr 27, 2015 at 08:12 AM about the 2003 Chevrolet Silverado 1500 Extended Cab RWD

Question type: Maintenance & Repair

3 Answers

299,645

Did you check the engine oil or transmission fluid? It might be mixing there. Also check the passenger floorboard, carpet area, is it wet? White smoke out of the tailpipes? Coolant smell in the engine bay after a drive?

check the front and rear intake gaskets, there only cylicone and VERY notorious for seeping.

14,060

I would suggest a combustion leak test in your radiator. the kit is 40 bucks or so and not hard to perform, lots of youtube vids on it. it will tell you if there are combustion gasses in the coolant and therefore a bad head gasket.

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