Question about Cars & Trucks

1 Answer

I have replaced the thermo switch but still the fans don't cut in when temperature reaches high point

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Cars & Trucks Master
  • 45,620 Answers

Check fans , relay and fuses

Posted on May 09, 2017

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 534 Answers

SOURCE: My 94 Tracer temperature gauge reads between 3/4

Yes, it is possible the temp. sender is faulty, but I would do a cross check of the actual coolant temperature vs gauge reading using a cooking thermometer in the top of the radiator.
Take care not to get scalded - check it at about 180 to 200 deg.

Posted on Aug 02, 2009

  • 4793 Answers

SOURCE: Does a Toyota 2E engine (Corolla) has a Thermostat

it DOES have a thermostat,and a thermo switch.....

Posted on Oct 30, 2010

  • 188 Answers

SOURCE: I have overheating problem with

Hi,it can be losts of things ex.waterpump,airlock in system,watercap leaking,leak,thermostat so its best to get it to a garage to be presure tested.hope u come rite

Posted on May 21, 2011

  • 31 Answers

SOURCE: I have a 1997 5doors Toyota rav4 The temperature

get your fan working asap. i wouldnt even start your vehical until you get your fan on. it could just be a wire that came loose or even the fuse. if its a belt driven fan then make sure the belts are turning. worst case senareo be sure to top your fluid cuz you could have created a bubble in your cooling system and after all that let your car warm up and check for any leaks and check your oil and make sure its not watery or milky after because you might have a leak inside from letting it run so hot

Posted on Jun 17, 2011

Rickygittins
  • 715 Answers

SOURCE: 1999 temperature problem. We

Are you sure the fan is working?

Posted on Aug 19, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Does my 2002 Cadillac Seville SLS have a cooling fan switch, and, if so, where is it located?


Cooling fan switch ?????? Has a engine coolant temp. sensor , That inputs info to the PCM/ECM - engine computer ! The PCM / ECM interpits the voltage signal from software programmed into it as to what temp . of the coolant is . When the engine coolant temp. reaches
The PCM commands the low-speed fans ON under the following conditions:
• The engine coolant temperature exceeds approximately 106°C (223°F).
• The transmission fluid temperature exceeds 150°C (302°F).
• The A/C pressure reaches 199 psi (1372 kPa).
The cooling fans will switch from low to OFF when the coolant temperature drops below 102°C (216°F).
The PCM commands the high-speed fans ON under the following conditions:
• The engine coolant temperature reaches 112°C (234°F).
• The transmission fluid temperature is more than 151°C (304°F).
• The A/C pressure reaches 260 psi (1792 kPa).
• Certain DTCs are set.
The cooling fans will switch from high to low, except when DTCs are set, when the coolant temperature drops below 106°C (223°F).

The PCM turns on the cooling fans by energizing three different relay's .
Watch this video
Relay Driven Dual Cooling Fan Diagnostics

May 29, 2017 | Cadillac Seville Cars & Trucks

1 Answer

Older model Commodore. Why don't thermo fans kick in?


You're talking about the electric fan on the radiator?

An electric fan only kicks in when there is excess heat in the engine cooling system.

Other than that, there's an electronic switch/sensor on or near the fan. If that fails the fan can't kick in when the engine reaches a certain temperature

Jan 22, 2016 | Holden Cars & Trucks

1 Answer

Why after ten minutes when I start my car on, the radiator fan kicks on in HI and does not stop any more making a audible sound over the time?


Your coolant temperature has reached the point where your fan thermo switch kicks in causing the fan to work. When the coolant temp drops below that point the fan will switch off

Oct 16, 2014 | 2004 Lincoln LS

1 Answer

Cuts off when it gets to temp


You say that the temp switch is good but are you refering to the temperature sender unit for the temperature gauge or the sensor switch ( 2 wires ) that communicates to the ECM to turn on the fan when the coolant temperature reaches a pre determined point. Find it and replace it

Mar 28, 2014 | 2003 Ford Focus

2 Answers

Radator fans will not come on 1996 neon


The older Dodge neon cooling system has always been a problem, so this will not be easy to diagnose and repair.

A little background. There is a temperature sensor in the coolant system that sends that information to the PCM and the PCM then sends a signal to your temperature gauge to register it. Once the temperature of the preset peak, the PCM then sends a signal to the cooling fans to turn on, so the do NOT run at all times when the engine is turning, only when the coolant level reaches a preset level (in the 200F to 235F range). The one exception to that is when the AC is turned on, the radiator fans should be told to turn on. So start the car, turn on your ac and see if the cooling fans turn on. If yes, you don't have a problem with the cooling fans. But that doesn't mean that you don't have a problem with your cooling system. If the car is overheating, you need to find out if the PCM is sending a signal to the cooling fans to turn on. If it isn't the trouble could be in the PCM.

Jun 06, 2011 | Plymouth Neon Cars & Trucks

1 Answer

Wireing


Temp fan failure could be the thermo temperature sensor. I am not sure of the actual name of it but if you can direct wire your fan and it works, then the fan is good, the sensor is bad. I myself have rewired a switch to them so I can control when and how long the electric fan runs.

Apr 06, 2010 | 1996 Chevrolet Monte Carlo

1 Answer

Have a 2003 stratus with intermittent A/C works great when on, where is the pressure sensor located?, that may be problem


On this Chrysler product they have an A/C Transducer located on the high pressure hose. The switch has three wires. They also have a thermo sensor located at the evaporator case behind the glove compartment. These two things are the only ones thatA jump in the system is only removing protection the system has. So it will damage your compressor or hoses. Find the compressor follow the high hose to the high pressure switch (transducer) it has three wires. Check under the dash by the glove box and you will see a round platick lid on the case with two wires that is your thermostat (thermo sensor).
control the compressor.

The A/C clutch is controlled by the A/C cycling switch (19E561) and the A/C pressure cut-off switch, which are connected in series. The A/C cycling switch is mounted on the suction accumulator/drier (19C836), and the A/C pressure cut-off switch is mounted in the discharge line at the A/C condenser.

The A/C cycling switch closes when the pressure on the low side of the system reaches approximately 276-324 kPa (40-47 psi). The A/C cycling switch opens when the pressure drops to approximately 163-175 kPa (23.5-25.5 psi), disengaging the A/C clutch. In ambient temperatures below -1° C (30° F), the A/C cycling switch will not allow compressor operation because of low system pressures.

The A/C pressure cut-off switch is used to interrupt A/C clutch operation in the event of high system discharge pressures. The A/C pressure cut-off switch is a single-function switch that controls A/C clutch engagement. When compressor head pressures rise to approximately 2896 kPa (420 psi), the contacts open, disengaging the A/C clutch. When the pressures drop to approximately 1724 kPa (250 psi), the contacts close to allow A/C clutch operation.

This problem can be caused by low refrigerant charge. Check with a manifold gauge set and temperature pressure chart.
The cycling switch is replaceable and there is a Schrader valve on the accumulator port so you do not lose your system charge when replacing. It screws on/off. It is available at any auto parts store. It protects the compressor from low pressure which can be caused by a loss of refrigerant and subsequent lack of lubrication and prevents evaporator freeze up. Replace the switch. It is about $10. The high presure switch is about $25.

Aug 26, 2009 | 2003 Dodge Stratus

3 Answers

The radiator cooling fan is not working. Upon


assuming fuse and relay are good..no fan should be running when the engine is cool/cold, the only time the fan should be running when it reach over operation temperature which then the fan kick on to bring the temperature back down to it operation temperature. both fan work in sync with one another, addition cooling is needed when the ac is running. when the last time have you replace thermostat and Thermos sensor/switch. I would replace both unit if you have not done so. The thermos/switch will turn the fan on when it reach certain temperature and cut off when it sense the temperature drop in the engine.

Aug 25, 2009 | 1999 Lincoln Town Car

2 Answers

Our 1996 cirrus radiator fan is constantly running...what would cause this?


Most causes are fan switch close all the time, or a bad contact to the ecu.

Jul 16, 2009 | 1996 Chrysler Cirrus

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

67 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

yadayada
yadayada

Level 3 Expert

76848 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Randy Ohler

Level 3 Expert

14585 Answers

Are you a Car and Truck Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...