Golf IV R32 :: Fans Don't Come On - Car Running Hot
Aug 12, 2013
My R now has 78k on the clock so I guess it's time for the obligatory issues with the radiator fans. My car started running hot from time to time, not constantly. Brief explanation of the issues and my "diagnosis" for each:
Without the A/C turned on the fans don't come on - when I turn the A/C the passenger side comes on all the time (faulty switch). Driver's side fan is intermittent - usually it turns on with the a/c but if it doesn't a tap on the center with the lug wrench gets it spinning (stuck brush).
The main thing I want to make sure is that it's not a thermostat issue as well (or instead of the switch). The heat works fine - I've been blasting it every time I hit traffic on my way home just to ensure that the car doesn't overheat. My assumption was that if the heat works then the thermostat is opening to allow the coolant into the heater core.
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So my friend, ignoring my advice that this generation seems to be riddled with electrical problems, decided to purchase a seemingly nice 99 Jetta, with a junkyard AEG swapped in(AEG is written on the intake and block like a JY would do). Sun roof doesn't slide back, gets jammed, evidence shows water has built up previously and run down the A-Pillar to the fuse box.
I just got the fans unplugged and verified that the fans with power applied, both have their low/high speeds. The fuses on top of the battery are in-tact, no visible melting, looks like the thing is in ok shape(haven't taken them off to inspect the contacts yet).
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So I replaced my big fan today. Everyone knows that the factory fans are notorious for going out. After replacing the fan, I turn the car on and noticed that both fans were on... and never turned off. So I turned the car off, and turned the car over again. and they still were constantly running. I messed with the climatronic controls and when I have the settings on auto the fans are constantly running, when I have it on econ, they don't run. And when its on neither, the fans are constantly on unless I turn it off. Before replacing the fan, I replaced both the FCM, CTS, and the fan switch. Its becoming pretty frustrating. I supposed it could act as my own switch for the fans, hahaha. I've searched and havent found anything like this. Hopefully its something small
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I went out to my car this morning and the fans were both running full speed. That's before I even got to it then they carried on doing so when I started the car and still ran after I shut it off. I have stopped them by pulling the 30A battery top fuse for them but what has caused it and how I can fix it? Preferably not too expensively as I am moving house next month typically.
The car is a 2003 1.8t GTI with climatronics ....
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I bought my 2001 Jetty w/2.0 only yesterday. While I was looking under the hood this morning, I noticed there was no fans running while engine was going so I took a trip to local auto parts store. O'Reilly's hooked up my Jetty and told me there was four error codes but they weren't sure what they meant. Here are the codes: P0302, P0301, P1128,and P1580. I have no clue of what these errors mean. I am not familiar with Volkswagen at all and there are no volkswagen dealerships close.
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I've figured out why my car has been overheating lately, the fans aren't running at all! How do I get the front end off and check things out, is there a fuse diagram for the B6...
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I recently bought Lumina 2004 LS. both radiator fan clicks when temperature is very high (about to reach red). Also I have noticed when the AC switched on fans are not running continuously, works for few seconds and went off.
I have already tried replacing the thermostat and two relays. What to check? Looking for wiring diagram for Radiator fans.
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I woke up to a dead battery this morning .. And the other day I realized that my climate fans were still running even after the car was completely off.. It's really strange I'm not sure what the issue could be, but not only that! I can adjust to any temp, throw on the a/c and no matter what it's blowing out hot hot hot...
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I can usually find what Im looking for with a quick search but I have had no luck with this issue.
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Both engine cooling fans on my 1986 Camry are running all the time; even when the engine is cold.
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Finding the electrical controls( fuses, relay, control unit) of the fans ( both are not working) ... Passat station wagon 2.0T (FSI) 2007 .....
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My car just started over heating and I checked the fans and they are not running. I'm new to the VW family and although I love the way this car drives I've been baptized with quite a few problems.
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The two Radiator fans are always running even at start up on a cold day. I have not had time to investigate as yet but I am assuming it is the temperature sensor located near the thermostat or a relay. No CEL on. What it likely is and how to approach the trouble shooting?
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99 lumina. Ac was not working. I added a few oz's and the compressor clicked on but cooling fans were not running. After 10 min of idling the fans did come on but went off after 1-2 minutes. It seemed like they were responding to coolant temp more than ac pressure. Do the fans run when the hi pressure rises to a certain point where the computer will turn on fans?
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I have changed all fuses and even the temp sensor to the green one. My fans wont kick on unless I put on the AC. Where is the fan control module?
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So once I start the car the fans kick on, and stay on, even when off. The car currently has no coolant in it and it is not being ran longer than to simply start it. I am guessing the fan control module is no good? Anything else to look for? The car has a new green coolant sensor and the coolant res. is deleted.
Also, what resistor to remove the coolant level sensor? I would like to rid my dash of that annoying light.
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My a/c is really starting to bug me. In auto it blows through the defroster (windshield) and the face vents. It almost sounds like the defroster fans are rattling. If I turn the defroster fan off the sound goes away.
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The fans in the engine bay wont turn off. As long as the car is on they run. they do turn off when the car is off.
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I think my fan module might be bad because neither of my fans spin anymore, and my air conditioning doesn't work either. My buddy let me borrow a fan module but it isn't the right one, I just need a picture of the connectors or a part number would be good too.
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As it was such a matter of time, my fans on my 24v gave up during winter, no big deal as it was a pretty cold winter but now that spring is around the corner, I gotta fix this issue. To they change for the same OEM unit that will die in the next 30k miles.
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Started the R and moved it out of the garage after the motor build. At which during that time I replaced the large fan with a new one from Ecs and the small one I took apart and cleaned up after I found the Diy for it.
Before I rebuilt the motor the car started to over heat on its last ride home before the rebuild (Neither one of the fans would turn on). So I replaced the switch on the radiator today and let the car warm up and the fans didn't kick on again. I checked the fuse and it good but I'm not sure where the relay is.
Also my A/c is not charged up. I also touched the coolant lines running to the Aux radiator and they are cold. And I do hear the after run/electric water pump running.
The green coolant temp sensor is clean and plugged in. Could it be the thermostat? Are there any fuses in the panel that sits on top of the battery that deal with the fans? Is there a way to test the coolant fan control module?
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