Question about 1998 Honda Civic

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98 Civic with non-functioning cooling fan

I've replaced the thermostat and fan switch that mounts on the thermostat. Removed connector from fan switch and jumpered the contacts - fan runs. Normal driving keeps temp normal and provides heat to interior. Stop at stoplight and heat gauge starts climbing and heater blows cool air. At home, kept car in gear with brake on and watched temp increase. Put car in park, popped hood, fan not working.

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  • arturius68 Dec 29, 2008

    Exactly same problem, cap is releasing pressure due to a malfunctioning fan. Could this be a harness issue? (Bad grounds etc..)Is there an alternative wiring issue perhaps?









  • Anonymous Mar 27, 2014

    took to pep boys for repairs. drove off. 1 hr after repairs cars indacator reads hot pulled over to let cool & check radiator. had too replace coolant in over flow and radiator. continued my trip. cars temp would rise to red zone if i slowed down to exit hwy or climb a mountain.got home. put in the fan switch & relay. Still have heating problem when I take this trip to AZ from CA. went back to pep boys about 6 times complaining i still heat up. they did several pressure tests found nothing wrong told me they cant fix unless they see it running hot. only runs hot on long mountain terrain.

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I had the same issue over the summer. I checked the fuse, and needed to replace it. have not had any issues since.

Allan

Posted on Dec 29, 2008

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Bad thermostat or worse a plugged heater core or bad summer/winter diverter valve. look for bad thermostat.

Posted on Dec 08, 2008

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1 Answer

Cooling fan switch


It is not necessary to replace the thermo-switch when replacing the radiator. The switch can be replaced separately.
The fan switch is located under the sound box of the air cleaner. It is 2 pin connector. Pull the connector out by pressing the lock which attached to it and short the two pins with a thin auto wire temporarily. Switch on the ignition. The fan will become on. Drive it and see if runs hot.
If the temp reads OK, replace the fan switch. If the problem persists, diagnose the other issues which are concerned with the overheating problems.

May 07, 2013 | 2003 Honda Civic

1 Answer

2005 Jeep Liberty overheats at idle but while in movement temp returns to normal.


Check to see if the fan on the radiator is working at idle.

Here's information on how to change the fan if needed:

Engine Cooling Fan Removal & Installation 2.4L Engine To Remove:
  1. Remove the coolant bottle and set aside.
  2. Remove the power steering reservoir and set aside.
  3. Disconnect the cooling fan connector.
  4. Remove the cooling fan mounting screws and the cooling fan.
To Install:
  1. Install the cooling fan and the mounting screws. Tighten to 50 in-lb (5.5 Nm).
  2. Connect the cooling fan connector.
  3. Install the power steering reservoir.
  4. Install the coolant bottle.
3.7L Engine To Remove:
NOTE: If the fan blade is bent, warped, cracked or damaged in any way, it must be replaced ONLY with a replacement fan blade. DO NOT attempt to repair a damaged fan blade.
NOTE: For 3.7L Heavy Duty/Max Cool/Trailer Tow cooling package, the viscous fan cannot be removed separate from the shroud. Both fan and shroud must be removed together.
  1. Disconnect battery negative cable.
  2. Using special tool #6958 spanner wrench and #8346 adapters, remove the viscous fan from the water pump.
  3. Gently lay fan into shroud.
  4. Disconnect the electrical connector for the electric fan, then disconnect connector from shroud.
  5. Remove the two fan shroud mounting bolts connecting the fan shroud to the radiator.
  6. Remove the shroud and fan from the vehicle.
To Install:
  1. Install fan shroud assembly into the vehicle. Tighten fan shroud to radiator bolts to 50 in-lb (5.5 Nm).
  2. Install shroud mounting bolts tighten bolts to 89 in-lb (10 Nm).
  3. Connect fan motor wire connector to harness connector, and attach connector to shroud.
  4. Connect negative battery cable.
  5. Start engine and check fan operation.

Aug 31, 2010 | 2005 Jeep Liberty

1 Answer

1993 Honda Civic rapid heating


Sounds like your electric cooling fan(behind the radiator) is not functioning. The thermostat might not be working,making the fan
not come on at all. I once put a toggle switch in my dash,when I had
an old CRX, just to turn on the fan, or it would overheat.

Mar 29, 2010 | 1993 Honda Civic 4 Door

2 Answers

Engine running hot,near boiling and electric fans are not running


Here are the possibilities: 1.radiator cooling fan switch (one of 2 types are listed for your yr. and model-one is mounted inside the thermostat housing, or engine mounted, not sure which you have. 2. Radiator cooling fan relay-located under the hood in fuse/relay box. 3. bad cooling fan motor. Don't run the car until you fix this, as you risk blowing a head gasket or trashing the engine.

Dec 07, 2009 | 1992 Honda Civic

1 Answer

1989 Honda Civic hard starting and dies for no reason. Cooling fans not working. Trouble codes are #6 coolant, #10 air intake temp, #16 fuel injector. Can anyone lead me to a solution for these problems?


6
Accord Civic CRV CRX Del Sol Odyssey Prelude
85-98 86-98 97-98 85-91 93-97 95-98 85-98 ECT Sensor (Engine Coolant Temperature)
defective circuit or unplugged / defective sensor
10
Accord Civic CRV CRX Del Sol Odyssey Prelude
85-98 86-98 97-98 85-91 93-97 95-98 85-98 IAT Sensor (Intake Air Temperature)
defective circuit or unplugged / defective sensor
16
Accord Civic CRV CRX Del Sol Odyssey Prelude
90-95 88-95 n/a 88-91 93-95 95 88-95 Fuel Injector System
defective circuit or unplugged / defective fuel injector

check your wiring for dirty connections or broken wires, you may have wires that are rubbed through or connectors that are not making full contact. you will need an ohm meter and check wires for continuity. a wiring diagram will be needed.

May 15, 2009 | 1989 Honda Civic

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