Re. Strange cold start on 84 4000 quattro

urq urq at pacbell.net
Sun Aug 8 21:49:06 PDT 2010


IME leaks don't reliably go away most of the time ... 

I meant to reply earlier ... I wanted to check if the '84 4kQ has CIS-E or
not ... still haven't done that ... I *think* the comment that you have an
ISV means that you have CIS-E, but I'm not sure ... 

I'm most in agreement with Huw's comments.  The first thing I'd do is to
hook a fuel pressure gauge up and see if the residual pressure is non
existent.  The comment that it fires right away after cranking a few seconds
and then shutting off and attempting restart says fuel pressure to me.  You
may have more than one problem going on too ... 

Good luck!
Steve Buchholz

-----Original Message-----

Ok well pretty sure you hit the nail on the head here. I noticed a lot of
oil seapgae just beneath the X tube above the valve cover which is prone to
failure. I ordered the silicone replacement for the X & ISV tube from 034 as
well as 10' of vacuum tubing. I am going to replace it all when it arrives
and check over everything with chemtool to ensure no more leaks... 

From: benswann at verizon.net

Nothing strange about it - you have a vacuum leak (or several vaccum leaks).


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