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02 sts mystery coolant leak


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Hello all I have an 02 sts runs great not to many problems but last night I noticed a coolant leak from the back side of the motor by the exhaust cover dripping really good any ideas what I can do the car runs fine doesn't overheat help thanks jimmaye

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Do not drive it and risk overheating the engine, and damaging it. Sounds like it could be the heater core. Look underneath and see if the leak is coming from the passenger compartment. Otherwise it can be the coolant crossover.

Top the coolant off with 50/50 if you need to drive a short distance to a repair shop etc.

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Sounds like one or both of the heater pipes rotted through. The pipes route the coolant to the heater core from the driver's side of the engine.

Kevin
'93 Fleetwood Brougham
'05 Deville
'04 Deville
2013 Silverado Z71

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