Re: upshift indicator [4k/CGT]

["Joe Rae" <quattro@ptinet.net>]

A friend of mine's father bought a brand new 86 4000 s non Q and the shift
light did not work from the factory! When I bought my 4kcsq the shift light
worked then one day nothing. This went on for a couple of months then when
we put everything back together after doing the timing belt!!! Tada all the
sudden it worked again....... funny thing is that there was no disconnected
vacuum hoses?
Joe
-----Original Message-----
From: William Elliott <William.Elliott@mail.mei.com>
To: IPM Return Requested <quattro@coimbra.ans.net>
Date: Monday, June 22, 1998 11:56 AM
Subject: re: upshift indicator [4k/CGT]


> <<Does your upshift indicator light come on?  Mine never has.  I haven't
>thought much about it, until last night my friend told me he replaced his
>vacuum advance on his distributor because it was bad and his light started
>working (made his car faster of course too).>>
>
>Unless something else was wrong, hooking up a vacuum
>advance should not make a car faster.  Cleaner and more
>efficient, yes, but not faster. The advance only works at
>times of high vacuum.... meaning closed throttle.
>
><<Now I wonder if my vacuum advance is not working.  I replaced all my
>vacuum hoses, so I shouldn't have a leak anywhere else.
>
>I guess the simplest way to check for a failed vacuum advance would be to
>check the timing with it disconnected and compare that with the timing
>with it connected (while accelerating both times).>>
>
>If you're concerned, use a timing light and check the difference at idle.
>When the hose is connected, you should get more advanced timing.
>
><<Is there a better way to fix the upshift light (another cause beside a
>failed vacuum advance)?  I doubt it's the bulb, ya think?>>
>
>If I've owned the car, it's the bulb.  If you didn't buy the car new,
>it's possible (even probable) that a previous owner disabled the
>"feature".  When a light on my dashboard comes on while I'm
>driving, I want it to be important.
>
>Just my $.02
>
>Bill Elliott
>Lake Mills, WI
>
>