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Subject:Mystery Loss of Power At Startup
From:Loren Busch
Date:Mon, 10 Apr 2006 16:18:16 -0700

Okay, got a mystery problem, looking for ideas as to what's going on.  Vehicle
is a stock '90 Westy, stock 2.1L w/Digifant, automatic transmission. Work
just done:  Set of rebuilt injectors installed, new Bilsteins in the front,
rear brakes inspected and adjusted, emergency brake adjusted.

Runs fine at startup, cold.  In just a minute or two, as warming up, and
then on, two things occur.  First, when coming to a stop or starting from a
stop there is slight shudder to the van just as it stops moving, just as it
starts moving.  It feels a lot like clutch chatter, but no clutch, it's an
automatic.  But the big problem is no power when starting from a stop.  Once
rolling, but accelerating very slowly, and the revs get to about 2k,
everything is great, runs fine, plenty of power.  If I had a carburetor, I'd
say it was the accelerator pump, that's the way it feels.

Checked the tranny fluid, all up to the marks.  Oil okay.  There was no sign
of this before the work, never had anything like it in four plus years of
driving this van.  Has to be, in my mind, one of three things:  Something in
the FI system got unplugged during the work, there is something wrong with
all four injectors (not likely) or, and this seems absurd, the rear brakes
are doing something weird after the adjustment, like hanging or dragging.

Anyone recognize these symptoms?

--
Loren Busch
"I ordered a feast in the hope that you would come."
"I came in the hope there would be a feast."
(From "Monument" by Lloyd Biggle Jr.)