Question about 1996 Jeep Grand Cherokee
I have a new radiator, heat sensor, T-stat, water pump, replaced hoses. Temp guage reads above normal. No holes or radiator leak. Heat probe indicates lower engine heat that what Temp gauge indicates. Also, temp gauge goes to red whenever in heavy traffic.
Hi Reggie, I'm glad to help. TWO things I want you to check. ONE: You have changed out a lot of stuff, so you may have air trapped in the cooling system, you'll need to remove the radiator cap and let it run until your at operating temperture, while watching to make sure it doesn't overheat on your of-course. If after running the engine say 30 minutes and topping off the coolant if needed, it still runs hot. Move on to: TWO: If you have the electric fan, some do, some don't. If it is electric make sure the fan is coming on, if it doesn't come on then you have found your problem, replace the fan assembly. Hope this helps and have an awesome day Reggie!
Posted on Jun 08, 2014
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Posted on Jan 02, 2017
Did you put a new cap on the radiator? Small as it seems, if it does not provide an adequate seal on the radiator, than the system does not get pressurized, thus keeping the boiling point around 212 deg. your engine gets way hotter than than normally. When sealed right, the pressurized system raises the boiling point to close to 300. thats how is works. If thats not it,(assuming it is the last thing replaced) than you might have either a cracked head/ head gasket/ valve guides, cooling ports, basic large dollar items. Lets hope for your sake the problem is still in the cooling system, before you look at the motor. If you take out the sparkplugs, you'll be able to tell real quick, rusty, burnt whitish-orange looking condition. Good luck
Posted on Aug 15, 2008
Your thermostat is stuck closed. It needs to be changed right away. By the way the operating temp on that motor is 160 degrees so you are running hot you have just been lucky so far. Good Luck
Posted on Dec 01, 2008
Hi and welcome to FixYa,
Offhand, your described condition indicates a sticking thermostat, that is there is considerable delay before the thermostat opens. It is also possible that there is some restriction wherein the thermostat is not opening completely when the triggering temperature has been reached. As a test and to confirm, you could try temporarily removing the thermostat and operate the engine without one; observe temperature. The side effect of this test is that it would take some time to warm-up the engine, but operationally should not cause anything untoward. Of course, care has to be exercised that the gasket would still be intact.
Good luck and thank you for using FixYa.
Posted on Feb 11, 2009
Check water pump and make sure that its working. Should be circulating antifreeze in radiator and in engine. You can also check and the head gasket and make sure its NOT blown. Good luck and thanks for using FIX YA
Posted on Mar 03, 2009
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