20 Most Recent
1991 Audi 90 Questions & Answers
Grinding
try putting oil in ur rear axle
12/3/2017 12:54:43 AM •
1991 Audi 90
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Answered
on Dec 03, 2017
Question is pertaining to a
check teh oil light pressure switch on the engine they often have a rubber boot over the wiring connections ,these boots tends to fill with oil throwing the oil light switch on ,must be a american market one because i have never seen this buzzer on the europeon ones
9/23/2010 4:56:33 PM •
1991 Audi 90
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Answered
on Sep 23, 2010
My coolin fan doesn't kkick
Bad relay to fans usually causes this and if computer is shutting it down over heating issues then means it's reading correctly from the coolant temperature switch meaning that's working. Given that the computer wants to shut it down and knows it's hot should mean it's sending the signal for the fans but no results because relay. Easier to determine if you have twin fans because if the fan motor was bad only one would not work.
9/2/2010 9:56:50 PM •
1991 Audi 90
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Answered
on Sep 02, 2010
I need the color codes for the stock wiring
Constant 12V+
N/A Go to Battery
Switched 12V+
Red
Ground
Brown
Illumination
Blue
Dimmer
n/a
Antenna Trigger
White
Antenna
Left Rear
Front Speakers
3 1/2" Dash
Left Front (+)
Green/Black
Left Front (-)
Orange/Green
Right Front (+)
Green/Black
Right Front (-)
Black/White
4/4/2010 11:06:25 PM •
1991 Audi 90
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Answered
on Apr 04, 2010
Lost drive on audi automatic gearbox
check for proper atf fluid levels, also check the fluid for metal sediments/debris and color should be pink,
possible worn bands; transmission needs rebuilt
2/22/2010 10:07:20 PM •
1991 Audi 90
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Answered
on Feb 22, 2010
Radiator cooling fan
it's an electric fan that turns on only when needed --by a temp sender in the rad (at about 92˚ - 105˚ F)
2/22/2010 9:56:37 PM •
1991 Audi 90
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Answered
on Feb 22, 2010
1991 Audi 90 Quattro 5 cylinder duel head over cam oil pan
is the pan loose or tight? if it's loose, but won't come down, it could the oil sump hung up on the windage tray, the windage tray goes between the pan and the block, it has a hole in the tray for the oil sump to fit thru, the tray is to keep oil from splashing on the crank, hope this helps
2/1/2010 4:58:31 PM •
1991 Audi 90
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Answered
on Feb 01, 2010
How do you remove a petrol pump from an audi coupe
It is mounted on the inside top of the fuel tank. If there is no access panel above the fuel pump inside the car, then you will have to remove the fuel tank in order to get to the pump for replacement. Pump as much fuel out of the fuel tank as possible before removing the tank.
9/3/2009 8:44:45 PM •
1991 Audi 90
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Answered
on Sep 03, 2009
Original stereo in audi 1991 90
i have the original book it says anytime the battery is disconnected it will do the lock up and read SAF on the display when this happens you cant use it again untill you unlock it... to unlock it turn the radio on the word safe will be displayed first press the am/fm button and then press the scan button and hold them down simultaneously until "1000" appears in the frequuency display release the buttons DO NOT UNDER ANY CIRCUMSTANCE CONTINUE HOLDINT THE BUTTONS DOWN OR PRESS THEM ONCE AGAIN THIS WILL CAUSE THE RADIO TO TAKE THE NUMBER "1000" AS THE CODE NUMBER. using the first four radio station buttons enter the code number found on your radio card (the codes you have) use button 1 to set the first digit of the code button 2 to set the second digit etc. the first digit of a four digit code must be "1" if your code number has three digits the first digit on the display must be set blank. Once the code is shown on the display press and hold the am/fm button and scan button simultaneously until the work safe appears in the frequency display release the buttons a radio station frequency will automatically be displayed ... MAKE SURE YOU PUT IN THE RIGHT NUMBER OR YOU WILL LOCK UP THE RADIO AGAIN AFTER 2 TRYS AND WILL HAVE TO WAIT AN HOUR BEFORE YOU CAN RETRY IT. IF YOU LOOSE THE CARD WITH THE NUMBER SEE YOUR AUDI DEALER
2/20/2009 9:17:16 PM •
1991 Audi 90
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Answered
on Feb 20, 2009
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