Thread: Coolant leak behind water pump

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  1. #1 Coolant leak behind water pump 
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    I have a 2006 grand prix and it seems that I have a coolant leak in behind the water pump, how can that be and what part is behind the water pump
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  2. #2 Re: Coolant leak behind water pump 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    The front cover bolts to the block with a gasket. It can leak coolant between the block and cover.

    That is a possible leak if the water pump is okay. Or the other leak is the coolant elbow above the water pump leaking down.

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  3. #3 Re: Coolant leak behind water pump 
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    Thanks for the reply, does the water pump bolt directly onto the block or is there a part between the pump and the block. The pump was recently changed by a mechanic and he said the part behind the water pump is also leaking and he would fix it for $700, but I called bs on that. I always thought the pump bolts directly to the block.
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  4. #4 Re: Coolant leak behind water pump 
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    if the leak is from under the water pump snout and pulley, its the pump leaking, most common leak. you can grab the w/p pulley with two hands, push and pull with each hand back and fourth, it you got play the pump is bad for sure.

    if you got a mirror and a flash light, you can see under the pulley to the snout and see the wet weep hole under there.

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  5. #5 Re: Coolant leak behind water pump 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Quote Originally Posted by raythecaddie View Post
    Thanks for the reply, does the water pump bolt directly onto the block or is there a part between the pump and the block. The pump was recently changed by a mechanic and he said the part behind the water pump is also leaking and he would fix it for $700, but I called bs on that. I always thought the pump bolts directly to the block.

    The pump bolts to the front cover, which is bolted to the engine block.

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  6. #6 Re: Coolant leak behind water pump 
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    From further research I guess that would be the timing chain cover that the water pump bolts to. I read somewhere that you could remove the water pump and the timing chain cover all in one piece by removing only the 4 larger water pump bolts that go right through to the cover...your thoughts on this or do you know of any tricks or tips to make the job easier.
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  7. #7 Re: Coolant leak behind water pump 
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    You still have to take the balancer pulley off with a special puller, then remove the front timing cover. And yes, just for those long bolts is all you need to take off plus the rest of the timing cover bolts.

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