Question about 1998 Audi A4

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Tempeture sensor on a tdi 1998 a 4

Where is the tempeture sensor for the gauge on th dash is it the blue 4 pin plug or one of the 3 sensors on the back of the head

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4 in on back of the head held in buy a plastic type horseshoe clip,dont loose the o ring when you take it out!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1

Posted on Oct 19, 2008

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How many teperature sensor does geo tracker have


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don;t confuse it with a coolant temperature sender which has 1 wire and works the temp gauge

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My 1990 k1500 chevy 4 by four my truck the gauge for tempeture in my dash dont work anymore i know the engine overheating sometimes i see prestone on the ground leeking from under the radiator but the...


If the Check Engine light is coming on the computer is storing a code to let you know what the problem is. Have your computer scanned and you will probably find out what the problem is. The temperature gauge cannot work properly if the cooling system is leaking. The sending unit has to be in the coolant to work. If the coolant is low, the sending unit will not be in the coolant. If the coolant is leaking from around the radiator there has to be a radiator, radiator cap, or radiator hose leak.

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How many wires 1 ,3 or 4 and colours on lambda sensor? on most lambda sensors the Black wire is the sender wire but on yours I`m sure its blue ,as for the tacho gauge you need a wiring diagram for the ECU as you need to connect it there or pull the dash clocks out (carefully)

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How to replace a coolant temp sensor on a 2001 vw jetta 2.0


Yes it is that easy. It should be a 4 pin connector located on the transmission side of the engine head in a plastic flange. Best is to wait for the engine to be cold. Unscew the radiator cap to relieve pressure but screw it right back on. On the 2.0L engines when you unclip the coolant sensor little or not coolant loss will happen if you do this. Just unplug it, pull out the clip, pull out the sensor, and the seal which sometimes stays stuck. Install the new sensor with a new seal lubricated with some coolant, make sure it's well seated and reinstall the clip. The sensor is well seated if the clip fits right over the top, just make sure both sides clipped into position. Replug it fill the coolant with VW original coolant mixed 50-50 with water if needed and done. If you have a fault you might need a scanner to erase the check engine or fault in the cluster.

What's the reason for changing it? Eratic temperature readings?

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3 Answers

Tempeture gauge


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1 Answer

Jetta 2003 2l fault code p2182


P2181 Cooling system performance

Check Thermostat operation & Temp sensor for ECU. CHECK ENGINE CCOLANT TEMP SENSOR IN WATERHOSE, NORMALY A 4 PIN PLUG. ON SENSOR SELF PIN 1&3 OR C&D AT 0 degrees
5000-6500 ohms,60 degrees 530-675 ohms,90 degrees
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Could also be the cooling fans - I've heard of fixing it by replacing the fan motor and clearing the code as well. The easy fix seems to be the coolant sensor though - I've seen several online threads where owners cleared this code by changing that sensor.

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