Question about 1984 Chevrolet Corvette

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My cars are over heating and my fan will not come on ive replaced the thermostat and the relay and also put new coolant in the car fan still will not come on any ideas

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  • 52 Answers

Check the fan motor

Posted on Jan 04, 2014

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Posted on Jan 02, 2017

  • 115 Answers

SOURCE: 1995 monte carlo overheating

If the radiator fan isn't coming on I would check the coolant temperature sensor which tells the fan to turn on. Check your owners manuel for locations of fuses or relays that control the fan. Lastly you can unplug the fan and direct jumper it to make sure the motor isn't burnt out. I hope this helps.

Posted on Mar 15, 2010

  • 508 Answers

SOURCE: 2001 chevy caviler is over heating

To locate the thermostat follow the upper radiator hose from the radiator to the engine it will be at the end of the hose. Also if you have an electric secondary fan make sure the sensor that controls it is working or the engine will over heat.

Posted on Feb 07, 2009

c17hydro
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SOURCE: 97 Cavalier engine heats up and blows coolant out plastic reservo

Check your oil and see if it is milky lookinig...that is a sign of a bad haed gasket....here is the location of the thermostat...unless a different engine size...then post what you have and I'll get you the diagram here:

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Posted on Jul 12, 2009

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My fan will not turn on i replaced the thermostat the relay and put new coolant in the radiator .the cars over heating and the fan still will not come on any ideas.


Does the fan come on when you turn on the A/C? If not, the fan is probably faulty. If the fan runs with the A/C, but not when the coolant gets hot, then the fan temp switch is probably faulty.

Jan 04, 2014 | 1984 Chevrolet Corvette

1 Answer

2000 acura tl coolant fan after fluid change


New thermostat, installed, saw, new coolant made a little mess filling reservoir, (normal) checked fan fuse for some reason, and condenser fan fuse (xxx ?:), and temp guage, is slightly lower on gauge (than normal?) (disconnected xxxx? quit? a bit? to get to thermosta?.t no dash warning lights have a feeling I popped a relay.

Answer:

ok, you did a coolant service with STAT,

and it failed.

tell us what works right and wrong, symptoms only.

over heating? parked, (fan never comes on)? as it hits 225F?

under heating? ( fan stuck on , up North can cause huge cold engine)

dash gauge stuck low. (thermostat wrong heat range 180f is best. see FSM for spec. on this temp. spec..

Dash guage varies.? oddly (air in system)?

Dash gauge too high.? (Stat put in upside-down or bleed hole (jiggle) not UP side. higher side of mount , trapping air.)

Does something wrong happen only driving?

leaks?

does cap on rad hold 12-14psi pressure, hot.?

if car has fan belts, are they tight? (for sure water pump does)

Nov 19, 2013 | 1994 Honda Civic

2 Answers

My 99 alero v6 is over heating not leaking ight mite be hoses or thermostat . or head gasket but when it overb heats the smoke comes from the top of the engine


REPLACE THERMOSTAT AND RADIATOR PRESSURE CAP.IF CAR OVER HEATING WHILE IN MOTION.MORE LIKELY ITS THE THERMOSTAT,LOW COOLANT IN RADIATOR OR COOLANT SYSTEM,BAD WATER PUMP,WATER PUMP WEEP HOLE IS LEAKING, WATER PUMP NEEDS REPLACING.CHECK ENGINE OIL,IF OIL LOOKS LIKE MILK SHAKE YOU HAVE LEAKING HEAD GASKET.IF CAR IN PARK AND OVER HEATS WHILE IN A LONG TRAFFIC LINE OR.BANK DRIVE THROUGH COOLANT FAN NOT TURNING ON, BECAUSE THE ENGINE COOLANT TEMPERATURE SENSOR FAULTY.CODE SCAN CAR FOR FAULTY COOLANT FAN RELAY OR FAULTY PCM. CHECK COOLANT FAN FUSE, AND HOT WIRE THE COOLANT FAN TO MAKE SURE ITS WORKING.IF COOLANT FAN DONT WORK WHEN HOT WIRED. COOLANT FAN NEEDS REPLACING. REPLACE BOTH RADIATOR HOSES, REPLACE THERMOSTAT AND RADIATOR PRESSURE CAP.BUY NEW COOLANT ADD 50/50 WATER AND COOLANT.IF ENGINE OIL HAS ANTIFREEZE IN IT.REPLACE ENGINE OIL AND OIL FILTER TO KEEP FROM LOCKING UP THE ENGINE.GET CAR FIX.DONT KEEP DRIVING IF IT KEEP OVER HEATING,ENGINE DAMAGE WILL OCCUR.I HOPE INFORMATION I GAVE YOU WILL FIX PROBLEM.PROBLEM COULD BE LEAKING RADIATOR HOSES BUT CHANGE THERMOSTAT THATS FIRST THING I WOULD CHANGE BECAUSE IF IT CLOSED, ENGINE WILL OVER HEAT AND CRACK CYLINDER HEAD OR CRACK PISTON, COOLANT NEED TO CIRCULATE THROUGH THE ENGINE TO TAKE AWAY THE HEAT FROM ENGINE.

Apr 19, 2011 | 1999 Oldsmobile Alero

1 Answer

1999 Olds Alero 4 cyl running hotter than normal. One mechanic says it's Heat sensor that opens and closes. The other mechanic who ran car says it was thermostat that turns on dual fans. Ok well one was...


REPLACE THERMOSTAT.ITS STICKING CLOSE TO KEEP COOLANT FROM CIRCULATING THROUGH ENGINE AND RADIATOR. THE FANS SHOULD COME ON WHEN VECHICLE SETTING AT A LONG IDLE.THE COOLANT TEMPERATURE SENSOR GET TO CERTAIN TEMPERATURE WHICH WILL COMPLETE CIRCUIT PCM SEND POWER TO COOLANT SENSOR THEN TO COOLANT FANS RELAYS AND FANS.IF VECHICLE OVER HEATING WHILE MOVING THERMOSTAT FAULTY.IF YOU TURN AC AND COOLANT FANS DONT RUN CHECK COOLANT FANS FUSE AND RELAY.IF COOLING FANS DONT TURN ON WITH AIR CONDITIONER ON EITHER COOLANT TEMPERATURE SENSOR FAULTY OR PCM FAULTY.IF ALL LOOKS GOOD.IF ENGINE OIL LOOKS LIKE MILK SHAKE.YOU HAVE BLOWN HEAD GASKET.

Nov 11, 2010 | 1999 Oldsmobile Alero

5 Answers

Car will overheat while at idle


yes the head gaskets leaking on modern aluminum head engines is all to common. never overheat them, if they start to get hot shut it down and find out why, it can of course be the fans and plugged radiators or faulty thermostats but sounds like in your case the head gasket is leaking and combustion gas is entering the cooling system and this causes an overheat

Jun 08, 2010 | 2002 Mitsubishi Galant

1 Answer

The condenser fan blew out and damaged my radiator on a 2005 civic ex. The car is over heating and as the temperature needle goes up the radiator fan does not move. It only moves if I put the air on and...


hi
1st u have to replace condenser fan and radiator assy , it will solve your problem , cause due to no coolant radiator fan is not working and cause of engine overheating a/c system got trip . replace both condenser fan and radiator and put new coolant. thanks.

Mar 29, 2010 | 2005 Honda Civic

2 Answers

2000 JEEP GRAND CHAROKEE LAREDO OVERHEATS WITH NEW RADIATOR AND FAN..HOW DO I FIX THAT?


You may either have a bad thermostat or a bad fan relay. If the fan is not turning on at all then the relay is bad. If there is not any heat coming through the heater then your heater core is plugged. That would also cause an overheating problem as well. To rule out a bad relay check to see if you are getting 12 volts at the fan connection. If not change relay.

Aug 17, 2009 | 2000 Jeep Grand Cherokee

1 Answer

Hi i have a 1994 toyota estima which has started to over heat when sitting in traffic. I am not sure were the thermostat is located, as i guess this is the problem.


Thermostat, coolant sensor, fan relay etc. First check the coolant level, check for leaks. Check if the fans are on when the engine is hot, about to over heat. If equipped with two fans they both should be on. If its all good have the system flushed and a new thermostat installed. If you want to change the thermostat yourself follow the big hoses that are attached to the radiator. Look at each where they attach to the engine. It should be apparent where the thermostat is at the end of the hose. After replacing the thermostat if you don't top off the coolant and there is air in the system the car will over-heat with the new thermostat. Some times radiators have air bleed valves on top. If not then jack up the car a little. Jack it up in the side the radiator cap is at so the air can work its way out. To fill it add coolant when the car is cold, off, and jacked up. Leave the cap off and start the car this is so the thermostat opens and the coolant flows. Continue to add coolant until it over-flows close or put the cap on. Put coolant in the over flow reservoir fill it to the low level. If the radiator has the air valve you don't need to jack the car. If you did it right the car should not over heat and the heater should be working.

May 15, 2009 | 1992 Toyota Previa

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