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Audi 100cs problems and solutions - READ ONLY

5 messages,  Last post on Nov 17, 2003 at 9:03 AM

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What is this discussion about? Audi 100, Brakes, Electrical, Engine, Fuel System, Sedan

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#1 of 5 Audi 100cs problems and solutions by redroro1 Oct 21, 2003 (5:45 am)
I did the tune up on my 93 100cs and after changing my wires and plugs, it still shakes a little when I stop and idle? I also changed the intake hose and the problem did not go away! any suggestions? please help!! thanks, redroro1
#2 of 5 by Mr_Shiftright HOST Oct 21, 2003 (5:09 pm)
vacuum leak would be my first guess, and if it's a high mileage car, the motor mounts, which are liquid-filled and wear out.
#3 of 5 Starting problem by zeen Nov 05, 2003 (5:17 pm)
I have a 92 100 with 145k miles with AT. The car starts fine when cold but it's very hard to start when warm. Any thoughts?
#4 of 5 by Mr_Shiftright HOST Nov 06, 2003 (1:09 pm)
You should do a compression test first off, and then a tune up if compression is okay. You might also try flooring the gas pedal as you start the hot engine, until it catches (don't pump it, it doesn't do anything anyway--just leave it on the floor and see if the car starts easier).   If it starts easier while the gas pedal is floored, you may have a flooding condition, perhaps from a bad injector or a malfunctioning cold start valve.
#5 of 5 '90 Audi 100 by erikklein Nov 17, 2003 (9:03 am)
I'm trying to fix a hydraulic system leak associated with the brake/power steering booster. It appears that the cap on top of the canister is leaking through a tiny hole in the top of the cap. Note: I am not talking about the brake fluid reservior ... I am talking about the large canister that holds the hydraulic fluid for both the power steering and the brakes.   Is there supposed to be a tiny hole in the top of the cap? This is the cap with the electrical leads and the spring and the float associated with it.   Has anyone else experienced a leak through the cap?

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