Cruise Control Problems
TooManyAudis at aol.com
TooManyAudis at aol.com
Mon May 15 21:24:21 EDT 2006
Wondering if anyone has BTDT w/ cruise control problems on a '91 Avant.
I've checked fuses, tested the throttle servo w/ vacuum, tested the
brake and clutch switches to ensure they hold vacuum and dump vacuum
when depressed. I teed the line from the pump and it makes slight
vacuum when setting cruise or hitting resume, but not much. I'd go
through the test procedure in the Bentley book, but I can't even find
the damn cruise ECU control unit, and the manual (section 97) is not
much help other than it's looks like it's somewhere under the dash on
the passenger side.. It has to be the worst over-$100 manual ever
published.
My wife has a bad knee and needs the cruise. She's gonna give me one if
I don't get this fixed? Any suggestions?
Joe Mott
'91 200TQ Avant
I've had to replace the pump in my 200q. Are you getting any indication
that the pump is coming on at all? Mine would hold on a flat, barely, but could
not keep up when hitting the accel mode, or on hills. A replacement pump
cure it.
I happen to have one that was sent to me to fix the cruise on my 88 80q and
would be happy to sell it for what I paid. Turned out to be the brake cruise
switch / valve thingy had worked its way loose, so it wasn't making good
contact when the brake was in the upright position. If I push up on the brake
pedal, the valve closes completely and I have cruise. That may be something
to check as well.
-- Tom
91 200q -- for sale. check market for latest info.
88 80q - still running after all these years...
More information about the 200q20v
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