Question about 2005 Audi A3

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Audi a3 1997 overheat ect

No heatin inside car fans not kickin in and over heating pleae help!!!!!!!!!!!!!!!!!nik

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  • yadayada
    yadayada May 11, 2010

    whatt have u done to try and fix this problem? based on your repairs i will try and give u a solution.

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Bad water pump and possibly thermostat is stuck closed

Posted on Sep 18, 2009

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Posted on Jan 02, 2017

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2003 jeep wrangler tj 2.4L my coolant fan won't come on. i replaced the coolant senser the relay and fuse still won't come on. i hot wire fan to the battery it comes on


2.4L so did you first idle it to get over heat,220f so it can kickon,
scanning the ECT s,proving it hit too hot,, per SM>??
the key here is what, a real schematic,
and a simple voltmeter
some jeeps also have a modulated fan.(and driver for it)
fuse 4, PDC good. tested?
it goes to fan relay , contacts and then to fan motor circuit breaker
no air pocket on top of engine,making, ECT lie?
i the pcm sees ECT overheat
it puts 12vdc across the fan relay coils
if not the wire there bad,cut or pcm bad.
the PCM pin C2-p17 LG wire goes to relay pin 4
he PCM grounds this pin (using a transistor)
the relay closes, fan turns on.


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Feb 10, 2017 | 2003 Jeep Wrangler

1 Answer

Why is my 1993 Audi 90cs overheating?


There are dozens of possibilities from as simple as a bad pressure cap or low coolant level to as bad as a cracked engine block. Knowing the conditions that cause the overheat would help diagnose, here's some basics--assuming the coolant is full. Only overheats at low speed is generally an airflow problem: fan not running because of a fuse, relay, temperature switch, or dead fan motor. Only overheats at high speed is generally a coolant flow problem: radiator is plugged up, faulty thermostat, water pump vanes damaged. Tell us anything you've checked, any recent repairs done, and the conditions under which it overheats.

Jun 15, 2015 | 1993 Audi 90

3 Answers

Over heating problem , Toyota coaster year 2008. Change radiator, fan,and it still overheat. The head is ok.


Did you replace thermstat? I would start with that. If still trouble have a block check performed

Apr 14, 2015 | Toyota Cars & Trucks

1 Answer

Fan keeps going after shutoff


Sounds like car may be heating up, if motor gets to hot, fan may run until cooled down. If not heatin up could be a bad relay

Nov 06, 2013 | 2006 Volkswagen Passat

1 Answer

2000 audi a6 2.7 overheating


you need a professional mechanic locally to help you fix it

Nov 07, 2017 | 2000 Audi A6

1 Answer

Car ran hot now it wont start at all


THE ENGINE IT WONT CRANK IF OVER HEATED CHECK COOLANT LEVEL IF LOW ADD COOLANT.REPLACE THERMOSTAT AND RADIATOR PRESSURE CAP.IF ENGINE STILL OVERHEAT AT A STANDSTILL OR IN A LONG LINE OF SLOW MOVING TRAFFIC.COOLANT FAN SHOULD COME ON.IF ENGINE OVERHEAT CHECK TO SEE IF COOLANT TURNS ON IF NO.CHECK COOLANT FAN FUSE AND RELAY.IFBOTH OKAY HOTWIRE COOLANT FAN TO SEE IF FAN RUNS IF NO REPLACE COOLANT FAN MOTOR. IF FAN RUNS PROBLEM COULD BE PCM OR THE COOLANT TEMPERATURE SENSOR FAULTY OR DAMAGE WIRE CONNECTOR TO COOLANT FAN.USE A CODE SCANNER TO LOOK FOR PCM OR ECT FAULTS.IF EVERY THING CHECK OUT OKAY LOOK AT ENGINE OIL DIP STICK.IF IT LOOKS LIGHT BROWN OR LIKE MILK SHAKE YOUR HEAD GASKET BLOWN.MAKE SURE YOU HAVE 50/50 ANTIFREEZE AND WATER TO ENGINE TO HELP RAISE BOILING POINT.WHEN OUTSIDE TEMPERATURES HOT.

Aug 05, 2010 | 2000 Oldsmobile Alero

1 Answer

Audi 80, 1992, fan not coming on.


Have you tried a fan relay?
I'm thinking there is a coolant sensor AND a fan sensor on that model.

Feb 23, 2010 | 1992 Audi 80

2 Answers

1999 Chevy Cavalier Z24 2.4L cooling fan inoperative


Probalby not, seeing that's what's telling your over heating. it wont be a bad idea to remove it (be carefull of hot fluid) and clean it off and put it back in. (wouldn't hurt anyways) but this problem is most likly a falty relay form the PCM to the fans. wireing might be corroed and need to be cleaned. check the fans for power and gorund with an omh meter.

May 30, 2009 | 2001 Chevrolet Cavalier

2 Answers

Over heating, and no AC


Cooling Fan Malfunction. Your radiator fans are most likely not working. That's why the temperature is OK when you're driving full speed and the wind is cooling your radiator. You need to check and/or replace your cooling switch module and radiator fans (most likely it's the cooling module). If you were sitting idle or in stop-n-go traffic for an extended period of time, your car WOULD overheat because the fans aren't kicking in cooling your radiator - then you would see all of the cooling system water spill out of the coolant reservoir, before this would happen your temperature gauge would go to the red and the digital dislpay would flash a thermometer (indicating you're about to overheat in 2 mintues). I hope this helps someone out there - Yes, it happened to me in the middle of nowhere.

Jun 25, 2008 | 2002 Audi TT

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