1999 GMC Jimmy "cause impeller bad water pump" Questions

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...head gasket causing air to get into the system.Make sure the water pump is working properly.I have had some with the impeller has snapped off.so checking that if all else fails would not be a bad ...

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...were hitting it. I have also heard of impeller blades becoming "Warped" (Due to cheap/defective parts being installed), which would cause them to hit the side of the waterpump casing and cause

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...If a rattle is present, this Will confirm water pump damage, the impeller may be suspect. You can use a small hose to listen for impeller bearing damage, also. This can be cause by low coolant

...your water pump becaus this problem mostly caused by a bad water pump. second you should check the thermostat . My 98 Passat did the exact same thing. Was a bad water pump. (Cheap plastic

...cause an engine to overheat if the impeller vanes are badly eroded due to corrosion or if the impeller has come loose from the shaft. The wrong pump may also cause an engine to overheat. Some engines ...

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...cause an engine to overheat if the impeller vanes are badly eroded due to corrosion or if the impeller has come loose from the shaft. The wrong pump may also cause an engine to overheat. Some engines ...

changed may not have been the problem. Your problem may be a bad head gasket, a bad head, or a bad water pump. You will have to diagnose further. Good Luck Friend. Water pump impeller may be worn out

Question about GMC Jimmy

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...impeller. If the pump is bad you will be able to move the impleller with your finger through the thermostat hole. I have found that the best way to eliminate the thermostat as being a route cause to ...

Question about GMC Jimmy

2 Answers

...cause this problem, replace the T-stat. A hot motor will spark-knock but not under normal temperature. I know someone that has a taurus and it would only overheat if you drove it. He changed the ...

...impeller comes loose on the shaft, or the shaft itself may break from metal fatigue (caused by flexing due to an out-of-balance fan). Many late model vehicles (Chrysler in particular) have plastic ...

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