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Car overheating need to know fuse relay or possible problem

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Put a house fan on the radiator and see if the temp goes down. Start there.

Posted on May 22, 2011


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Why does my efi fuse keeps popping 1999 chevy prizm

Pull the EFI relay, replace the fuse, and see if it blows when you turn the key on. If it does not turn the key off, reinstall the EFI relay and remove the circuit opening relay/fuel pump relay. Turn the key on. If the fuse blows than we know the problem is One of the O2 sensors, the IAC, the purge solenoid, or the ECM You can unplug the O2 sensors, iac, and purge solenoid. Replace the fuse, turn the key on, and plug them in one at a time until the fuse blows. Replace that component. If the fuse blows with those unplugged than its probaly the wiring and possibly the ECM. let me know what you find and I'll help you more if needed.

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1999 Chevy Malibu 3.1 v6 the car is overheating during idle i replaced the water pump because it went bad but is still overheating. The cooling fans are not kicking on at all any ideas why? Also the turn...

what turns the fans on is the ECM and it does that by energizing a relay for the fans
that signal to the ECM to turn the fans on comes from the coolant temperature sensor unit in the coolant system
so check the fuses (2) , check the sensor , check the relay and then check that the fans will turn if they get power as for the fuse problem , the fuse should be around 5 amps but to aware that if the fuse in use is too high a capacity , then the harness will burn with a possible result of a car fire
take it to an accredited auto electrician to check the circuit out

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2002 impala 3.8. Overheated. Had coolant leak.Replaced bad coolant elbows and thermostat with fail-safe. Car still overheats. Noticed cooling fans not running when A/C turned on. Blown fuses. Replaced....

A bad relay will not blow a fuse. The radiator cooling fan must run with the A/C on or the vehicle will overheat and the A/C will perform poorly. First I would check the draw on you cooling fan motor-it may be blowing the fuse, or you have a wire shorted to ground.

Jun 18, 2011 | 2006 Chevrolet Impala

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my car is overheating .i have replaced the thermostat,but it is still overheating ,idont know where the waterpump is located,and i i also need to know what ,fuses and relays are involved with this problem

Mar 07, 2011 | 1997 Chevrolet Lumina

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Why is my car overhating?

you need to check fuses and relays for voltage,
if fuses and relays are ok,the fans will not kick on untill the engine has reached 212 degrees,unhook wires to fan motor and see if you have voltage there at 212 degrees,
the easiest way to do this is at the dealer,on there hand held computer they can do special test where they can make your computer turn the fans on and off with out heating it up.

Nov 24, 2009 | Cars & Trucks

1 Answer

Possible solution to engine overheating

So if you cant find it, how do you know its bad? The relays are on the RF fender, above the wheel, under the hood. The electrical diagrams lists 3 relays. They are all powered by the ENG fuse and its a 15 amp fuse. The fan is powered by the COOLING FAN fuse 30 amps. Power to the fan motor is on a BLUE/BLACK, BLUE/YELLOW and BLUE/RED wires, of course the BLACK wire is ground. Its a 2 speed fan. I would check for power to the fan motor first as with a car this old, the fan motor is usually worn out. If it does have power to it,m rap on the moto,r if it attempts to wrok, the motor is worn out.

Nov 11, 2009 | 2002 Mazda Millenia

1 Answer

Car overheating

This relay you are referring to should be in the engine compartment electrical box this is also known as the distribution box normaaly houses relays and high current fuses

Sep 20, 2009 | 2006 Dodge Magnum

2 Answers

My car runs hot and leaks antifreeze

if it's coming from the radiator cap your car is overheating,two things could be wrong
#1 thermostat is stack and is not circulating or
#2 that your actuator switch is not engaging the

May 29, 2009 | 2000 Chrysler LHS

1 Answer

Car overheating, fan won't turn on.

well first you will need to hard wire the fan to the battery to determine if the fan is good. then You will need to check the fuse/relay for radiator/AC fan. after that if necessary, check the engine coolant temperature sensor, could be faulty, this sensor tells the computer when the engine is hot enough to turn the fans on

May 27, 2009 | 1992 Mercury Topaz

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Where is location of cooling fan relay?

Under the hood on the drivers side, just forward of the shock tower, you will see what is called an "under hood fuse center". On the cover you can see the various fuses and relays that are located in the fuse center.
One of those relays is the coolant fan relay. Remove the top cover of the fuse center to gain access to the relay.
Hope this answers your question, good luck.

May 02, 2009 | 2002 Pontiac Sunfire

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