Question about 1991 Acura Legend

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Car overheating At a stop the car over heats, when moving the temp goes down. When I mess with the fuse (pulling it in and out), the fan would turn on here and there for the moment. When i restart the car, the fan stops working again. Is it the fans? Sensors? Fuse?

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Check the water temperature sensor for operation as it controls the current to the ECM that activates the fan relay. When the car gets above 3/4 way on the gauge the fans should be running full time

Posted on Mar 20, 2014


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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Accura Bose 6 CD changer

Usually this problem will occur when the battery has been disconnected. Have you tried your reset code, which originally should have been located just inside the owner's manual. Make sure you read the instructions, please you only get a couple of tries at a time.

Posted on Jul 09, 2008

  • 1 Answer

SOURCE: Acura MDX A/C won't come on

I went to an Acura dealer to buy the transistor for the rear A/C unit. The service advisor told me that the problem with the front A/C was probably due to a defective front transistor / resistor. I bought that part too.

The front transistor is located next to the blower motor under the dash on the passenger's side. It is secured by three or four small bolts. The one on the bottom left is very close to the carpet and the most difficult to get off and put back on.

The rear transistor is located behind the carpeted trim panel on the center console (driver's side). The carpeted trim panel is secured by clips only - there are no screws, so remove it carefully starting at the side near the accellerator pedal. Once the panel has been removed, reach inside a small hole in the metal frame to access the rear transistor. It is removed by twisting it and pulling it out. The hole in the frame is small and you might find pliers helpful.

After replacing both parts, the front and rear A/C are working. Apparently these transistors are common failures. If the A/C is out in your Acura MDX and the fuse checks good, a new transistor will likely solve your problem.

Posted on Oct 01, 2008

  • 10 Answers

SOURCE: Auto Repair: Fan switch or blower, how do I determine which is bad?

there is a thing called a blower motor resistor that controls the fan on cars these days. they are usually in the air box. check with a dealer for your car. its easy to change.

Posted on Oct 26, 2008

mighty thor
  • 51 Answers

SOURCE: 05 Silverado overheating

the conclusive evidence for fan clutch is this:
if the engine temperature begins to drop while the car is moving, you've got a bad fan clutch. Is the radiator clogged with deposits?

Posted on Dec 02, 2008

  • 3 Answers

SOURCE: my 1994 acura legend keeps overheating

when bleeding the system to get the air out, you may want to turn of the heater to help get all the air out of the system.

Posted on Apr 27, 2009

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Same problem with overheating at stoplights and low speeds. I can only drive for a few minutes at low speeds. at 40MPH, it is fine. Temp goes down. Stops overheating. Replaced Thermostat today. Didn't...

I'm willing to bet you have electric fans on the back side of the radiator that SHOULD kick on when the temp goes up. Those fans have both a fuse AND a relay. FIRST, look for a fuse in the fuse block labeled "fan" (or something of the nature), and check it. If that checks out alright, look in the relay box under the hood for a (1" by 1" square) relay labeled "fan" (or something of the nature). Pull it out and switch it with another relay in another spot. Make sure it is the same relay by comparing the markings on the relay. Turn the car on and watch to see if the cooling fans come on. If they do, you've identified the bad relay.

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My olds is overheating when it is when it is just idleing. The temp comes down once I start moving again or if I turn on the air. Is this a sign of a bad fan or possibly the thermostat?

It sounds like a cooling fan problem. You state the temp runs high when at a stop and idling, but goes down once you start moving. If the fan(s) are not operating, moving forces air through radiator keeping the temp at a normal range. Have the relay/fuse for the cooling fan(s) checked. They are located under the hood in the main fuse/relay box. If they are good, check the sensor that sends the signal to the fan(s). If it is good, then it could be a bad motor on the fan(s).

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I'm having heat problems. When I sit at a light or the car is not moving the temp gauge goes up and I get nice heat. When the car moves the temp gauge goes down and the heat is not as warm. Is this a...

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check your fuses on your fan.the fuses are located on the drivers side of the dash you will need to open the door for you to access them. if there is a blown fuse replace it and see if this fixes your problem. if it does and you are still over heating turn the heat on full blast and see if the temp goes down if so than you need to replace the thermostat. if there are no fuses blown than you need to check the plug on the fan unit to make sure it has not come disconnected.

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May 25, 2009 | 1991 Honda Prelude

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Here are a couple of suggestions.

1. Check to see if the electric cooling fans are working properly. Let the car idle until the engine gets hot. Watch to see if the dual fans ever kick in. If the fans never turn on then the problem could be the fans themselves, the fan relay, a fuse, or a temperature sensor.

2. Your thermostat may be stuck closed.

3. When the service engine light is on you can take the car to most auto parts stores and they will pull the codes for you for free. This could help to identify where the problem is.

Running the AC will make the car overheat faster because it loads the engine down. If you driving somewhere and you think you might be overheating and you can't stop to let the car cool down you can roll down the windows and turn on the heater. The heater works by pulling heat out of the engine and moving it to the passenger compartment. It may be uncomfortable but it can temporarily prevent your engine from overheating. This technique is especially useful if you're driving through a desert like in the southwest.

May 22, 2009 | 2001 Nissan Xterra

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