Can a VW Jetta fan run after the engine is shut off?
Definitely hold on to the info. The fan can run after the engine shuts off, but I’ve read about failures where the fan keeps running until the battery is dead. A sticking relay or switch, can jar itself loose while driving. But if it sticks once, it will likely do it again.
Why does the engine cooling fan not turn off?
I was wondering if anyone knows why the engine cooling fan does not go off when you turn engine off. We had to pull the fuse that is under hood on top of battery. Once we pulled it, it went off, but when we put it back in the fan started up again. Any and all replies would be greatly appreciated. 50 people found this helpful.
Why are the Bentley radiator fans not working?
I checked the fan circuits as per the Bentley manual today, When I jumper the terminals at the thermo switch on the radiator the fans come on, but only high speed. They won’t work on low speed. I turned the AC on with the fans on hoping it would be cool but it still won’t cool.
Where do I find the cooling fan on my car?
Look for this under the hood, near the cooling fan (see the link). Tap on it with a screwdriver handle, and see if the fan shuts off. http://d3nevzfk7ii3be.cloudfront.net/igi/XbD1JcNwbHgRnN4b.standard 107 people found this helpful.
Why is the radiator not working on my VW Jetta?
If the radiator fan is not working, it’s a serious problem. Just because the radiator fan is not on does not mean that it is not working. They are designed to only run when needed. If your Jetta is running hot, and the fan is not running we’ve laid out the most common causes of this issue below.
What to do if your Jetta won’t start?
If it’s cold and you have a 2009-2012 Jetta CLICK HERE for information. This is by no means a comprehensive list of problems, just some of the most common. Use common sense when doing any testing and be sure that you won’t get run over if the car suddenly and unexpectedly springs to life.
How does a diesel engine start a TDI?
The basics. First, here is a post with much of the basics of the diesel engine. For the TDI to start, electrical power needs to flow from the battery through fuses and relays to the key switch and ECU.
Are there any problems with the Volkswagen Jetta?
Volkswagen Jetta owners have reported 45 problems related to engine shut off without warning (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Volkswagen Jetta based on all problems reported for the Jetta.
Why did my VW Jetta stall on the freeway?
2014 vw Jetta suddenly stalled while driving on the freeway. Engine stalled and had complete loss of power, reducing steering and braking capability, creating a dangerous driving condition likely to increase chances of a crash. Alternator light came on. Was able to avoid traffic and get over to side of road and shut engine off.
What does after run do on a VW?
MK4 (1999-2004.5) VWs have an after run feature to cool the engine after shut down if the coolant temperature is too high. 36 people found this helpful. You have been quite helpful… and I thank you for the time you spent in answering my question…
Volkswagen Jetta owners have reported 16 problems related to cooling fan (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Volkswagen Jetta based on all problems reported for the Jetta.
When did the Jetta air conditioner stop working?
I bought my brand new 2009 Jetta tdi on 5/28/2009 and 2 days later after I had only driven the car for 200 miles, the air conditioning stopped working when the car was sitting still. I opened the hood after I got to my destination to realize that the cooling fans were not working at all. They would not even come on to cool the engine.
How much does it cost to replace radiator in VW Jetta?
I only have 37,000 miles in my car and was bought as certified car from vw dealer. Car makes engine noise while idling and diagnosis is that radiator cooling fan assembly needs to be replaced which costs $740. 00 per vw dublin, CA dealer.
Is the cooling fan still running when the engine is off?
That is because it is measuring coolant temperature, not engine temperature. The engine is still much hotter than the coolant. Yes, the engine still puts out heat even when it is off. You want to remove excess heat.
Can a car cool with the engine off?
There probably would be nothing wrong with letting the engine cool “by itself” (which is what happens if the design removes power from the fan when the ignition is off), but since the normal operation of most cars is to run the fan when the water temperature exceeds a set threshold, it does so even with the engine off.
Why does my car fan run after Turner off?
Fan runs after car is turner off drains the battery. After having my battery replaced, I noticed my engine light was on and my fan was running “hard”. It also runs for 10 seconds after my car is turned off. Diagnostics stated “cooling system malfunction”.
How does the radiator fan work in a Volkswagen?
When the Radiator fan is running, they suck in to close the Shroud off and only allow air to pull from infront or from the grille. When the radiator fan is off, they are allowed to free open, so that the radiator has air flow across the width of the core.
Why does a VW use a single speed fan?
VW originally used a single speed fan, that was simply controlled by a switch in the radiator. They applied 12V+ from the battery to one side of the switch, and the other went up to the fan. Since current needs a path from ground to a source. VW added a ground wire to the fan, why because the fan is mounted to a shroud,
How long does an electrical fan run after turning off the engine?
Electrical fan run for a long time after turning the engine off. It make big noise while turning. it turns off at certain for some seconds and starts to run again and again. for a proximately 5 minutes. I took it for service in March 2014 and reported the issues and was told that they cannot find any fault with it, and I should just drive it.
Why does my Audi A3 fan run all the time?
That 4-pin refrigerant pressure switch was a common failure on the A3 cars, and its failure mode would cause the fan to run constantly. Never seen it manifest itself in the same manner on an early A4 car, though, but that doesn’t mean it couldn’t happen.
Is the Aftermarket head unit bad for a VW?
Aftermarket head units and VWs are a very bad combo. They cause all kinds of problems electrically. Not 100% sure, but the aftermaket radio is definitely a suspect. 4 people found this helpful. thank you… when it warms up here I will definitely be taking it out.
Why are my coolant fans not running when AC is turned on?
Coolant fans not running when ac is turned on. AC compressor clutch engage then it will disengage. System has freon in it. It was working find but now nothin7. My car has 234565 miles. My car has an automatic transmission.
Why does my car fan keep coming on?
Fan will come on after accessing the car through drivers door even of it has been off for hours. Fan runs after car is turner off drains the battery. After having my battery replaced, I noticed my engine light was on and my fan was running “hard”.
Why is my radiator fan clutch not working?
The fan clutch is responsible for attaching the radiator fan to the engine and makes it work. If this clutch goes broke, the fan won’t work. It is the usual wear and tear over the years that may cause the springs in the clutch to corrode or even burn out. If you cannot find any other radiator fan problems, the clutch is most likely the cause.
Why does my Audi A4 1.9tdi not start?
Have the very same issue with my A4 1.9tdi. Cranks perfectly but wont start. Literally parked the car over the break, when I went to start it, no joy. No errors showing up either. I am interested to see what fixed yours… Cheers… You need to make sure the in tank pump is working.
Why does my Audi Passat not start up?
If you remove the pipe from the fuel filter under the bonnet you should get a squirt of fuel from this when the ignition is turned on. On my Passat I had an issue with the Relay that provides power to the ECU, this has a secondary contact that provides power to the relay for the fuel pump.
Why does my car have no air in the vents?
Step 3 – A fan blower motor is controlled by either a switch in the passenger compartment or by a computer. If this fan motor is starting to fail it will cause the fan motor to run at a lower speed resulting in low air flow. To test this condition an amp meter is needed, connect the meter lead to the power wire of the fan motor.
What to do if your car heater is blowing out cold air?
Run the engine until the fan kicks in. Once your fan has come on, look around the radiator for a bleed port or bleed screw. This is something that can be turned with a screwdriver. Once you turn it anti-clockwise, you should hear a hiss; this is the air being released. 4. Are the Heater or Heater Controls Broken?
What to do if your engine fan won’t turn off?
13 people found this helpful. If the fan switches off by itself after about 10 minutes, it is working properly. MK4 (1999-2004.5) VWs have an after run feature to cool the engine after shut down if the coolant temperature is too high. 36 people found this helpful.
What is the relay code for a VW Jetta?
Relay code number 100 is replaced by relay code number 370 depending on production. N… – Ignition coils 1-4 with output stage (up to May 2005) N… – Ignition coils 1-4 with output stage (up to May 2005) N… – Injectors cylinders 1-4 (up to May 2005) N… – Injectors (up to May 2005)
Where is the fuse box located on a Volkswagen Jetta?
Year of production: 2003, 2004, 2005, 2006, 2007, 2008, 2009 Engine compartment fuse box Relay carrier on onboard supply control unit (left under dash panel) The instrument panel fuse panel Additional relay carrier, under box in engine compartment
Where is the fan relay located on a VW Jetta?
nancy, “The Fan Control Relay is bolted beneath the battery tray. That’s a known failure item when the fans are inoperative. The Fan Control Module is on the lower driver side of the radiator… or it can be located on the driver side lower framerail.”
Is it normal for a car cooling fan to run constantly?
Both cooling fans run constantly. The AC is off. Engine cold, start up, and they both run continuously. Key off, and they both stop. Not sure about the different speeds, but I venture to say it is high speed. I suspect this is not normal. However, the AC does work good!
Why does my radiator fan keep running after I Turn Off the car?
Runs for about 30 minutes or till battery is dead. I have a 2007 VW Jetta 2.5 L – radiator fan stays on constantly, even after shutting the car off. Have to disconnect the battery, because there is not a fuse / relay anywhere under the hood or within the inside car panel.
How can I tell if my engine cooling fan is turning off?
Tap on it with a screwdriver handle, and see if the fan shuts off. http://d3nevzfk7ii3be.cloudfront.net/igi/XbD1JcNwbHgRnN4b.standard 107 people found this helpful. If you found the fan module under the hood, and the fan shut off when you tapped on the module, you will need a new module.