'91 100q 5 injectors replaced - now car wont start

John Cody Forbes cody at 5000tq.com
Mon Jun 10 20:31:28 PDT 2013


Another possibility is that if the injectors (new or old) leaked some fuel 
in to the cylinders it could have washed the oil coating off the sides of 
the cylinders and piston rings. A washed down cylinder doesn't make much 
compression. Pouring a small amount of oil through the spark plug holes can 
cure this quickly (I usually do about a cap full, less with the big caps 
that Mobil 1 uses).

-Cody Forbes

-----Original Message----- 
From: DeWitt Harrison
Sent: Monday, June 10, 2013 10:33 PM
To: quattro at audifans.com
Subject: '91 100q 5 injectors replaced - now car wont start

On Sun, 09 Jun 2013 19:35:38 -0400, "Christopher Gharibo" <cgharibo at usa.net>
wrote:

> I just replaced 5 injectors on my 100q, cleaned what I can and plugged
> everything back in.
>
> The car now wont start. The fuel pump primes, the starter comes on but the
> card does not make that typical, cycling, cranking sound. The starter
sound is
> now this constant spin instead of the rhythmic cranking one hears when
the car
> cranks normally. It doesn't seem like anything is firing.
>
> Any thoughts on what I an missing?

I wonder if the starter's Bendix gear is not engaging the ring gear, hence
the "spinning" sound with no cranking. Or (hate to sound like a wise ass)
is it possible the spark plugs were removed and not reinstalled?

DeWitt
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