1994 90Q Engine overheat and rad fans don't come on
09-07-2005, 07:22 AM
#1
New Member
Thread Starter
Join Date: Sep 2004
Posts: 17
Likes: 0
Received 0 Likes
on
0 Posts
1994 90Q Engine overheat and rad fans don't come on
The other day I noticed a bit of engine overheat problem. Need your help...
The temp gauge passes half and rad fans don't kick in. Replaced the sensor on the radiator but rad fans didn't come on. Could this be a thermostat or a stuck fan relay?
Thanx ... Dana
The temp gauge passes half and rad fans don't kick in. Replaced the sensor on the radiator but rad fans didn't come on. Could this be a thermostat or a stuck fan relay?
Thanx ... Dana
09-07-2005, 07:26 AM
#2
AudiWorld Super User
Join Date: Sep 2002
Location: Fort Collins, CO
Posts: 18,539
Likes: 0
Received 0 Likes
on
0 Posts
Thermostats in the B4s typically don't get stuck and overheat...they rather get stuck so the car...
...never warms up - if your temp gauge reads below normal, then, you could suspect the thermostat...
Have you checked fuses/relays? Do you have enough coolant in the car? Is it the right coolant (can't mix Audi coolant with most generic/store bought).
Have you checked fuses/relays? Do you have enough coolant in the car? Is it the right coolant (can't mix Audi coolant with most generic/store bought).
09-07-2005, 07:38 AM
#3
AudiWorld Expert
Good advice - relay, fuse, - check the power to the the fans with a voltmeter and trace it back
he should get a shop manual with the wiring diagrams
09-07-2005, 07:40 AM
#4
New Member
Thread Starter
Join Date: Sep 2004
Posts: 17
Likes: 0
Received 0 Likes
on
0 Posts
Re: Thermostats in the B4s typically don't get stuck
Checked all the relays and fuses. They seem fine ... I'm now suspecting temp sensors! Any idea why the temp sensors would quit?
09-07-2005, 10:16 AM
#7
New Member
Thread Starter
Join Date: Sep 2004
Posts: 17
Likes: 0
Received 0 Likes
on
0 Posts
Re: Good advice - relay, fuse, - check the power to the the fans with a voltmeter and trace it back
Thank you for replying. Really appreciate it but i'm desperate for some advice. I checked the fuses and the relays and all seem fine.
The temperature gauge works fine. I get the temerature warning when the temp gauge passes 110 degress. So would I be correct to say the problem isn't related to water temperature sender if the gauge works fine? Appreciate some help ...Dana
The temperature gauge works fine. I get the temerature warning when the temp gauge passes 110 degress. So would I be correct to say the problem isn't related to water temperature sender if the gauge works fine? Appreciate some help ...Dana