Question about Cars & Trucks
Replaced radiator, plastic inlet blown out, 2 thermostats, both fan relays and sensor on thermostat housing... still overheating in traffic, any thoughts?
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Posted on Jan 02, 2017
Check power to the relay. it can close, but if there is no power to it, it can't send anything to the fan.
signal goes from sensor, to the computer, to the relay. when it closes it transfers power from the hot side to the fan.
Posted on Jun 12, 2009
If the fans don't come on to cool the radiator then maybe it's the thermal fan switch, which sends the turn on signal to the fan relay, that might be bad.
Posted on Nov 23, 2010
You sound pretty good at this
Go to a local repair shop and have
them print out a wiring diagram
They will have to be successful enough
to subcribe to All Data,Mitchell,etc
Posted on Dec 04, 2010
SOURCE: 2001 jeep grand cherokee laredo
suggest that you rent a pressure tester from auto zone or advance auto and preform a pressure test on your cooling system. follow the instructions on the test of pressure to your cooling system,also check for coolant leaks onto the ground from radiator area. may be bad water pump,broken hose,heater hose,upper radiator,lower radiator,or a bad radiator itself. a simple pressure tester will reveal the coolant leak. but make sure to follow the instructions with the pressure tester,as you can damage your coolant system otherwise. thank you for choosing fixya.com
Posted on Sep 17, 2011
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