Question about GMC Jimmy
Water leaking above water pump
You may.have a bad intake gasket or check the radiator hose going to top of engine or intake.
Posted on Apr 13, 2014
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Posted on Jan 02, 2017
this is a water pump bypass hose connector to the manifold, take the broken piece to a parts store and show it to them, it should have the threads still broken off in the manifold so explain that. To remove the broken piece ask for a EZ OUT to fit the piece you took to the store.
It is common for these to become brittle and break off but it is a simple fix.
Posted on Feb 21, 2009
could be the weep hole located on back of water pump right on top if its leaking its probably pissing out if this is the case its time to replace the hoses are on both sides but sounds like if u cant see and its behind pump its the weep hole try using a small mechanics mirror to take a peak with engine off you should see a antifreeze water mark indicating the leak
Posted on Mar 31, 2009
First off, is this water or antifreeze? If it's water it could be coming from the heat/air conditioning. If it's antifreeze, it's probably either a heater hose or the back of the intake manifold.
Posted on Dec 27, 2009
i have a 1999 ford explorer v8 5.0 and it is leaking right behind the waterpump. but not from the pump, about 5 inches behind the pump, like by the block, what is it?
Posted on Jan 20, 2010
It is your Lower Imtake Manifold gasket (LIM). Late Production Camaros and Firebirds used Dex-Cool coolant which nortoriously caused the LMI to actually disintegrate. The failure of the LIM allows coolant to leak to the exterior of the engine as well as into the interior of the engine eventually getting into your oil. Check your oil for a brown milky color... if you have it immediately drive your car to you favorite repair shop and replace the LIM gasket. The GM 3.1L, 3.4L and 3.8L engines are famous for disintegrated LIM gaskets and a good shop will have replaced 30-50 of these in a year. The LMI is part of the reason the public dissed Pontiac and eventually led to its demise (not to mention bad management at GM). Find a shop familiar with the LIM problem and it shouldn't cost more than $500 to replace (or less). If you have any mechanical skill you can replace it yourself... the gasket kit costs about $35 at NAPA AutoParts and it takes a whole Saturday if it's your first time. I just finished replacing the LMI on my wife's '94 Firebird.
Posted on Mar 23, 2010
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