Engine Overheating Due to Water Pump Leak on Chevrolet Impala

The water pump may develop a coolant leak resulting in an engine overheating condition.

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Average mileage: 116,750 (12,000–324,000)
Engines affected: 3.4L V6, 3.5L V6, 3.8L V6
10 model years affected: 2000, 2001, 2002, 2003, more2004, 2005, 2006, 2007, 2008, 2011
48 people reported this problem
25 people shared problem details
2005 Chevrolet Impala- 3.4L V686,000
I have a new radiator, water pump and thermostat and my car is still overheating.
2002 Chevrolet Impala- 3.4L V6160,000
water was leaking out of a "weeping" hole on the water pump. This part was not very expensive. The part was equally not that difficult to replace, 9 bolts- and time. local santee shop quotes $365 for parts and labor. my friend, the right tools, and anafternoon. good times......good luck
2005 Chevrolet Impala- 3.4L V6
Saw leak coming from pump then replaced with a new water pump from an auto parts store
2005 Chevrolet Impala- 3.4L V6130,000
Water pump quit working car began overheating replaced alot of things still runs hotter than should
2005 Chevrolet Impala- 3.4L V677,000
intake elbow keeps busting on engine at least once a year sometimes more. This needs to be recalled and made into a metal part or something that can withstand the constant heat and cooling depending on the temperatures outside.
Stats engine coolant temp on message panel an temperature will go in red zone an sounds like car wants to stall......
Water pump dripped on serpentine belt causing squeaking. Was an easy repair once diagnosed.
2006 Chevrolet Impala- 3.4L V6191,000
2006 impala small leak around water pump car overheats
2004 Chevrolet Impala- 3.8L V699,000
Overheating, screeching noise, water dripping
2005 Chevrolet Impala- 3.8L V612,000
brown sludge coming from water pump
2001 Chevrolet Impala- 3.4L V6122,000
Having probl with car overheating and pump had been replaced . Head gaskets and thermostat also ! Running hot and water doesn't se to be circulating from radiator to thermostat . Jose has lot of pressure on it when engine is at thermostat open temp . The same problem as more than half of the reports .. Factory engine flaw and needs to be addressed ! $3000.00 in repair costs and climbing !!
2000 Chevrolet Impala- 3.8L V6
I replaced radiator cap and put new thermostat on.car still gets hot
2002 Chevrolet Impala- 3.4L V6156,000
Car keeps overheating
2005 Chevrolet Impala- 3.4L V675,000
Water pump making whining noise, sounds almost like the transmission. Just got 2 quotes-one for 600 and 700 including thermostat and Belt tensioner 3 hrs labor----still shopping
2004 Chevrolet Impala- 3.4L V6110,000
Just discovered water pump leaking and very loose, causing a loud squealing and grinding sound. Attempting to fix myself, but with having to buy jack stands and flush the coolant as well is extremely inconvenient, as I am in a major time crunch to fix it in less than 12 hours and I didn't detect signs of the problem before the loud squealing/grinding that started today. If the belt slips, the engine could seize and I can't take the risk. Is there a recall for this??
2008 Chevrolet Impala- 3.5L V6324,000
Radiator fan runs almost constantly. There are no coolant leaks and water pump is fairly new (10K miles). I'm going to have the coolant flushed. Its my taxi cab and would like to get it to 400K miles.
Water leaking from pump
2005 Chevrolet Impala- 3.8L V673,000
dash temp gage went red. made it home next day. coolant was empty. refilled rad. and overflow tank. Started up , when at temp and reved coolant was blowing out pump. will either send it to shop or let it blow up!!!! THANKS GM for CHINA PART
2005 Chevrolet Impala- 3.8L V6181,465
car overheats only 4-5 minutes after being started..leaks water by belts. needs to be filled with water multiple times a day.
2005 Chevrolet Impala- 3.4L V6110,000
Noticed this problem by warning message of engine overheat. Mechanics told me it's water pump leakage after examination. After changing the pump, everything works fine until now (20000 miles so far).
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