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Coolant Leak & Engine Overheating on Chevrolet Camaro

Problem Description and Possible Solution

A coolant leak may develop from the water pump. The engine may overheat as a result of the coolant loss. A leaking water pump should be replaced.

Problem Data
RepairPal Verified
Average mileage: 84,667 (12,000–186,792)
Engines affected: 3.1L V6, 3.4L V6, 3.8L V6, 5.7L V8
14 model years affected: 1990, 1991, 1992, 1994, more1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2010, 2011
30 people reported this problem
Comments
Viewing 1 - 6 of 6 comments
MY HUSBAND AND I WAS ON THE INTERSTATE AND THE TEMPERATURE INDICATOR LIGHTED UP AND THEN A MESSAGE CAME A CROSS HIGH TEMP/OVERHEATED. WE PULLED OVER TO A GAS STATION FLUIDS POURING OUT FROM UNDERNEATH THE CAR. MY HUSBAND CHECKED IT OUT THE ANTIFREEZE FLUIDS HAD ALL LEAKED OUT. SO HE WENT AND BROUGHT COOLANT POURED IT IN AND IT LEAKED RIGHT BACK OUT. TOWED TO NEAREST CHEVY DEALERSHIP WAS TOLD IT WAS THE IN AND OUT HOSE CONNECTED BETWEEN TRANSMISSION AND ENGINE. THE COST $1100. EXTENDED WARRANTY AND BUMPER TO BUMPER 100,000 MILES COULD NOT COVER!!!!
OUT OF POCKET EXPENSE THIS IS VERY WRONG!
My 99 camaro 3.8L V6 started leaking coolant but I couldn't find the leak so I had to keep filling the radiator with water about every 1 1/2 to 2 weeks regularly for around 3 months so my radiator has only water inside and neither fluid seemed to leak into the oil. I think the coolant/water leaked and evaporated into cylinder 3. When I cold start the engine it has a slight misfire until engine temp rises and diagnostics confirm plug needs replaced in cylinder 3. Misfire occurred around same time I noticed coolant leaking...3 months or so. After 3 1/2 months the leak was visible coming out from behind water pump and it's gasket and leaking from the bottom left longer bolt of the water pump at the thread end of bolt. Also from either the valve cover gaskets or intake manifold gasket due to steam with whistling noise coming up from that area but leak spot isn't visible due to parts in the way. Could be a crack in the block but I'm praying it is not. Anyone have a shop estimate to replace water pump & gasket, intake manifold gasket and valve cover gaskets??