Question about Audi A3
My fuel gauge never shows full, only 3/4 then down to 1/4 till zero in the space of 50 miles. also the temp gauge is starting to run hot. is there a link and what can I do!
No link, the fuel guage issue is the sending unit in the gas tank is defective, the temp guage may be correct, have you serviced the cooling system lately or ever? What year is the car?
Posted on Oct 31, 2008
Change the coolant temperature sensor. They're known problem areas on other Audi models, including my A4. The part runs about $20 from www.ecstuning.com and it's the problem probably 75% of the time. If that's not a fix, it could be a thermostat that is stuck open and causing the gauge to never read warm.
Posted on Aug 11, 2008
The guage and fan speeds work on independant sensors. If you can remove the plastic engine cover and locate the "sending unit" for the gauge disconnect it and restart the engine. The gauge should remain cold and not move. If this is the case replace the sending unit. This should be a single wire sender located in the waterjacket of the intake manifold look in the area where the upper rad hose enters the intake.
Posted on Mar 21, 2009
faulty stepper motors in your cluster. and its 03-06 GM vehicles that are affected. and no there isnt a glitch in all chevy cars you smoke too much u paranoid freak. you can fix this yourself for about 40 bucks. heres how i did it. click the link
Posted on Mar 22, 2009
SOURCE: temp guage not working
It's most likely one of two things: 1) coolant temp sensor (meaning the gauge isn't working), or 2) stuck thermostat (meaning the gauge is working but the coolant isn't getting hot)
Start with the coolant temp sensor - it's on the back of the engine, somewhat near the top, toward the passenger side. On your car it's likely a blue sensor body (as is the CTS on my 99 A4 2.8). The easiest way to get to it is to remove the tube leading from the airbox to the throttle body. Take that off, and you can look down and see that there's a squarish plug with four wires plugged into the top of the coolant temp sensor (at the right angle you can see the color of the sensor - black, blue, or light green, but most likely blue on your car). There's a C-shaped retaining clip that holds the connector onto the sensor which must be pulled off (pull more or less straight back toward the firewall), and then the sensor can be unplugged. The sensor itself is just pressed into the opening in the block, not screwed in - you just have to pull upward to get it out (it can be tough - try opening the cap on the coolant tank to alleviate pressure in the system). The sensor is not expensive (around $25 from www.ecstuning.com - call them up with your VIN number to guarantee they send you the right sensor).
If you change that out, and it doesn't fix the problem, don't sweat it - it means your temp sensor was working, but replacing it was a good idea anyhow since they're prone to failure and can cause all kinds of wacky problems when they go. Next most likely problem is a thermostat stuck partially or fully open, and this is more invasive - it requires removing the front bumper, opening up the core support (with radiator and AC condensor), losing (and having to flush and refill) your coolant, and the removal of the serpentine belt and fans. It sounds horrifying but it's pretty easy actually.
I'd suggest starting with the CTS and see if it fixes the problem. If it does not, reply here and let me know and I can help you through the thermostat replacement if you're mechanically inclined and have the tools. If you're in the northeast, I can do either repair for you (I'm in the southern tier of NY) and save you a bundle over a dealership, and save you the aggravation of doing it yourself if you're not mechanical or don't have the tools or experience.
Posted on May 02, 2009
SOURCE: 2002 malibu runs hot.
Sounds like you have a faulty head gasket or maybe a cracked head.This can cause overheating and the check engine light to come on.The code for the o2 sensor is probably caused by coolant getting into the exhaust system and coating the sensor.The coolant fan may work but it cannot remove enough heat from the rad to make the engine cool off.Try some engine coolant stop leak to see if it will help.This maybe only a temperary fix.Let me know if you need more.MOE
Posted on Jun 22, 2010
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Posted on Jan 02, 2017
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