Jeep Grand Cherokee overland 2002
I've overheating in my car Jeep Grand Cherokee
overland 2002, I changed the hydraulic cooling
system to clutch system but the problem is still
overheating then when I opened the cap radiator I
found foam so, what does it mean?
One or two thing eaither theres air in the system or you have a block issue and are getting oil in the radiator.
Some foaming is normal especially when at full flow but it should dissipate really quickly when the pressure is released. If you getting a lot of foam it could be a blown headgasket and the combustion gases are causing the foaming problem. Have a block check test performed, that will tell the tale. If the headgaskets are blown then you need to find out why they blew, could be a poor coolant flow through the radiator, after almost 17 years it is entirely possible the radiator is junk.
Thx for all pls another answers
Had the same problem with an 03 GC 4.0l eng.. changed the electronic relay under the right side headlight, that didn't fix it. the problem turned out to be a partially burned out fan motor. the fan motor always turned but very week, it just wasn't turning strong/fast enough. replaced the fan motor problem solved. At least for my situation.
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