Question about 2001 Jeep Grand Cherokee
Posted by Anonymous on
where the coolant is going and why the gauges go nuts are probably not the same problem. sounds like your gauges have a problem with the ground side connection to power. you could look at the negative battery post and see if it is really gunked up, might as well check the positive side while you are looking. if the battery posts get oxidized pretty much everything gets a not so great connection but gauges are one of few places you notice it. the car only runs off the battery at startup or if momentarily car is using more amperage than alternator can provide, but current runs through battery from alternator so bad connection there will cause whole system to function less than optimum. in the cooling system one component you don't mention replacing is the heater core. you say the coolant is not on the ground, so where can it be? pull your oil dipstick and see if your oil looks like oil. if it looks like vaseline, kinda white and creamy, you just figured out where your coolant went and you have a blown head gasket. hope that's not it, it's sort of a hassle. there aren't too many other places for the coolant to go. it either runs on the ground, boils off against the hot block, like if it comes out near an exhaust manifold (and that makes quite an odor) or gets into the oil through blown head gasket. it can make it into the passenger compartment through a leaky heater core and if that happens you will smell a sort of sweet smell in the car and after while get a green cast to condensation inside windows. hope that helps.
Posted on May 26, 2009
Not knowing how many miles you have on your Jeep, this may or may not be the case; check the water pump.
If the shaft seals fail, there is a small hole on the bottom edge that allows coolant to flow out instead of it causing more serious problems.
It may not be easy to determine this since belts and fans tend to scatter it all over.
If your interior floor isn't wet, the heater core is probably OK but if you have air in the cooling system, it will affect the cabin heating.
Posted on Dec 02, 2009
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