Question about 1987 Honda Prelude

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Fans not coming on and getting hot one fan comes on only while car is shut off

Only hearing one fan come on only while car is shut off

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You can take a look under the hood at the fuse and relay box. the fan relays are probably just old and worn out and need replacing. try this and also try and follow the wire back to the relay box to make sure its connected. If this doesn't work, you can always run a power wire straight to the fan so when you turn the key it comes on and stays on. It should just be a bad relay. good luck

Posted on Apr 20, 2013

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Posted on Jan 02, 2017

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SOURCE: What fuse # controls the in cabin fans on a 2004 Honda CRV?

The fuse box is located under the steering wheel to the right. A diagram on the back of the removable door should show you which fuse to check. You will likely need a pair of needle nose pliers to reach/pull the the fuses, they're recessed beyond the opening.

Posted on Jul 08, 2008

  • 261 Answers

SOURCE: 1996 honda

you know the fans are ok most honda have a two terminal switch at the right corner bottom of tthe radiator if you put a jumper across this terminal the fans should kick in, this indicates that the coolant temp sensor is bad replace it, secondly some honda have a temp sensor located right on the thermostat housing and you can disconnect the wire and just ground the wire and the fan should come on so replace the temp switch last thing to check for is coolant leak around the readiator seem i mean the edges the radiator being fiber glass may have hair crack through which antifreeZe keeps leaking out the only suggestion for honda is to replace the radiator.

Posted on Nov 16, 2008

  • 65 Answers

SOURCE: over heating

tempature sending sensor

Posted on Jan 18, 2009

  • 12 Answers

SOURCE: how to remove the radiator of a 1986 honda civic

yes you need to take the fans off ext till the radiator is ready to come out shouldnt take more than a half hour

Posted on Sep 24, 2009

  • 280 Answers

SOURCE: 93 honda accord keeps getting really hot and fans won't turn on

fan relay or coolant temperature sensor

Posted on Mar 10, 2010

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Do you hear cooling fan coming on ? After you shut the vehicle off the fans will still run for up to seven minutes if hot !

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You may have a 2nd problem. Those fans should run when the car gets warmer than usual. The TDI you have is VERY good about being efficient, and produces little waste heat. Those fans don't come on anywhere near as much as a gas burner BUT they need to come on when you're really working the engine or it's a very hot day. Fan motor failure was common on these cars. With engine running turn on the A/C- this activates both fans to kick on. Do both fans kick on ? If yes- could be temp sensor, also a commonly replaced part- if no check fans. With battery disconnected (for safety) spin the fans by hand. Are they stuck or do they sound awful ? Fan motors may be shot. If fans spin free may be fan relay- check for power at fan connectors with engine running and A/C on

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I have a 94 chevrolet caprice,My fans do not come on when the car gets to the hot point,All the things that i look at are good,Can any one help me.


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First are you sure the fans are good. Unplug the fans and hook directly to the battery and see if they turn. One fan is for the engine and should come on when the car gets hot. The other generally comes on when the a/c system is on. If both fans work hooked directly to the battery they are good go to the cooling fan switch or temperature switch (same thing different name) and make sure it is good. This tells the fan to kick on when the car gets hot. The other one kicks on when a switch on the a/c system tells it to kick on. Check and make sure you are getting power to the fans. Get a test light and ground it to a good ground on the car and probe the plugins going to the fans and insure there is power coming to them when the car is running. If no power fuse is bad or the sending unit is bad.

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Oct 01, 2009 | 1996 Chevrolet Monte Carlo

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HOT QUICK even at night !


so are you saying the fans aren't coming on? then yes, that's probably the problem. Start the car and watch the fans, but don't let the car overheat. If it starts to get too hot and the fans haven't come on, well first shut the car off before the head gaskets go, then find out why the fans don't work. Check fuses and relays, power and ground at fan motor, if all good replace fan assembly.

Aug 10, 2009 | 2002 Pontiac Grand Am

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