Failed Cooling Fan Module May Cause Fan to Run Constantly or ... Mazda MPV Failed Cooling Fan Module May Cause Fan to Run Constantly or Not At All - 178 reports. Learn about this problem, why it occurs, and how to fix it.
Radiator Fan Always On - Car Forums and Automotive Chat I put back on the other sensor, now a/c compressor working fine but fans run all the time. I ordered new switch from RockAuto, 70 bucks with shipping. Installed and now everything works fine again. I also used silicone RTV to fully seal the top end of the sensor harness so no more water can channel in.
How should the the radiator fan & A/C fan operate ... - CarGurus How should the the radiator fan & A/C fan operate when the A/C is turned on? 11 Answers. When I have the A/C turned on the fans behind the radiator ( 2 of them ) both cycle on and off ...repeatedly. Neither fan stays on for any length of time. Shouldn't at least one fan stay on when t...
Does your radiator cooling fan run all the time? - Ford Flex ... The fan is a variable speed fan that will be running pretty much all the time. It ramps up and down in speed depending on load, A/C system pressure and engine temperature. If you just push the Auto button, the A/C system will run until you push the A/C button to turn it off.
The cooling fan runs all the time. What would cause that? Is ... The cooling fan runs all the time. What would cause that? Is a 97 2 liter a non interference engine - Answered by a verified Ford Mechanic
Radiator cooling fans are on all the time - Car Forums and ... The PCM provides lo and hi speed fan enable via a lo or ground. These outputs are independent of each other. One side of each relay Cooling Fan, Cooling Fan 1 and Cooling Fan 2 are hot at all times. All the PCM does is provide that lo or ground based on engine temperature to turn the fans on.
Are radiator fans suppose to be running all the time? | Yahoo ... Best Answer: Some cars run all the time, some cycle. Generally, newer cars cycle. They draw quite a bit of current thru small switches and they can easily fail in the shorted or ON condition so check the manual, online posts, a dealer you trust, or a good mechanic.
Symptoms of a Bad or Failing Cooling Fan Relay | YourMechanic ... If the cooling fans are staying on at all times, this is another (less common) symptom of a possible problem with the cooling fan relay. If the relay shorts internally, it may cause power to be permanently switched on, which will cause the fans to run at all times.
nissan - Fans run all the time - Motor Vehicle Maintenance ... For instance, my car has three thermostats to choose from: 82, 87 and 92 Degrees Celsius (whatever that is in fahrenheit). Like it says on the tin, the 82 degrees thermostat will open when the coolant temp reaches 82 and will engage the fan soon after. 82 is very easy to reach in warm to hot weather (my car was designed to run at 92, mind you).
Radiator fan runs all the time... - Pennock's Fiero Forum Pretty sure this was a PO-provided work-around butcher job. The radiator fan on my wife's '84 starts to run as soon as the ignition switch is turned to "ON" and runs all the time the engine is running. There is a wiring mess beneath the brake master cylinder where a large (40-amp, maybe) inline fuse has been wired in to the wiring going to the fan.
should the radiator cooling fan always run when the a/c is on ... Test all fuses with a test light .. *Professional scanner* can run functional test on cooling fan for circuit check in each speed mode and command fan to run in each .. plus it can see what inputs the fan is getting from PCM and show results in live data.... That is the BEST way to check it out! ..
Radiator fans working all time - jaguarforum.com hi, I noticed had broken thermostat housing and driven without coolant some time ( temperature indicator never go up half 90 C) and cooling radiator fan working all the time just after you set key in position II. Replace new thermostat and new coolant but fans still working all the time.
How Does a Radiator Fan Work? | DoItYourself.com A radiator fan exchanges heat in the engine. When an engine is running, it produces heat, and that heat dissipates so that the engine does not become too hot and overheat. The cooling fans are part of the cooling system and their design helps to keep a cooler temperature in the engine. The cooling ...
Cooling fan in winter? - Car Talk Community Is it typical for an electric cooling fan to run in the dead of winter, even when not driving in stop and go traffic? The fan on my 2001 Forester is coming on even when it's 10-20F outside. It seems to run for a long time too.
Radiator Fan Speed, When it Should Run - Volvo Forums Testing the radiator fan of 96-97 850 / 97-98 S70/V70/C70/XC70 whose ECM is Motronic 4.4 -- by forcing the fan on High or Low for a short time -- can also be performed by xiaotec "850 OBD-II" Android app V1.1.6. Presumably the more recent "850 OBD-II" versions also have the ability to control the radiator fan on 96-98 850/SVC70 with M44.
How Radiator Cooling Fans Work Explained in Under 5 Minutes Step by step instruction on how an automotive radiator cooling fan works. This article pertains to all vehicles. Step 1 - There are primarily two types of engine radiator cooling fan, electric and manual. A manual fan is connected to the engine drive pulleys and is controlled by a thermo fan clutch which senses radiator heat and engages when ...
G2: DIY: Diagnosis: Testing the Radiator and Condenser Fans Repeat this test using the White and Pink wires of the Condenser Fan Relay. This time both fans should run. If your fans ran as they should, this confirms that each fan motor is working and the wiring from the relays to the fans is good and the Radiator Fan Main Relay is at least partially working. Sensors Coolant Sensors
Radiator fan runs all the time when engine running - CarGurus Radiator fan runs all the time when engine running 2 Answers. My 2000 T&C radiator fan keeps running after only a few minutes on the road. It is also overheating a little from time to time. Cools off when i slow down.
Radiator fan stays ON all the time! - Maintenance and Repair ... Radiator fan stays ON all the time! - Maintenance and Repair Forum. ... the radiator fan stay on all the time. ... because of all this, the engine doesn't run AS ...
radiator fan running all the time - Roadfly Car Forum & Off ... radiator fan running all the time As soon as the engine is started it kicks on and stays on until the engine is shut off. A friend with an '87 model replaced a relay on the fuse panel to solve a similar problem, but according to a reference book I have, there is no such relay on the panel of my '84 model.
pontiac - Cooling fans constantly run - Motor Vehicle ... Even with the cooling fans running all of the time, the engine thermostat should force the engine to warm up at a normal speed. The thermostat will regulate the coolant to the radiator/fans if it is working properly. It can be normal for the cooling fans to run constantly under certain conditions.
When Is a Radiator Fan Supposed to Start? | It Still Runs A radiator fan has an important role of keeping a vehicle's engine cool. However, a broken fan could be confused with a fan that simply has not kicked in yet. This is one reason why information on when a radiator fan is suppose to start can be beneficial to vehicle owners.
Does a CPU Fan Need to Run all the time? - Sharky Forums Does a CPU Fan Need to Run all the time? If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed.
Radiator fans run constantly. Replace Fan Module. Infiniti ... YouTube TV - More live TV to love ... No thanks Try it free. Find out why Close. Radiator fans run constantly. Replace Fan Module. Infiniti M35 M45 ... WHY RADIATOR FAN STAYS ON ALL THE TIME ...
cooling fan running all the time? | Yahoo Answers The thermostat housing is behind the distributor on the lower radiator hose. 2. Unplug the connector on the temperature switch 3. now start the engine with the switch disconnected 4. If the cooling fan no longer runs, you have a bad fan switch! NOTE: the cooling fan should come on @ 199 degrees on the 99' Civic
Cooling fan is always on, even runs when engine is cold ... The cooling fan will come on when the engine is cold and it will stay on the entire time the engine is running. I've read that the cooling fan will run the whole time when either the A/C is on or the vent control is set to defrost, regardless of whether the engine is cold or hot.
quick question - how to make radiator fans run all the time ... Seems like now that the A/C has lost enough pressure to not turn itself on upon request, the radiator fans do not run at all unless I short the Low Pressure switch on the sight glass and the car gets real close to red line temps in traffic.
2007 Mercedes Benz cooling Fan runs on high speed - YouTube 2007 Mercedes Benz cooling Fan runs on high speed Técnico Hernandez. ... a suggested video will automatically play next. ... Electric Radiator Fan Diagnosis - Duration: ...
SOLVED: Radiator Fan's Run All The Time - Fixya Radiator Fan's Run All The Time My son's 2001 Pontiac Grand Am has constantly running cooling fans, even in this cold area of Michigan. As soon as the engine starts the fans come on and stay on until it is shut off.