Plug the vacuum hose that goes to the brake booster to see if it makes a
difference?
At sudden pwerful takeoffs the distributor might rotate a bit if you haven't
tighten
it enough and the felt gaskets sometimes used can get thinner over time
making it
possible for the dist to rotate.
Best Regards Pelle
From: "John Nasta" <[EMAIL PROTECTED]>
Reply-To: The Chevelle Mailing List <[email protected]>
To: "The Chevelle Mailing List" <[email protected]>
Subject: [Chevelle-list] suddenly running really bad
Date: Tue, 11 Oct 2005 23:48:03 -0400
On my way home today my engine suddenly started running really bad. In
fact,
the only way to keep it running is to leave the choke on so that it's on
fast idle. Putting it into gear immediately sucks power away and with my
foot on the brake on the brake it can stall, even at fast idle. My first
guess is that it's a massive vacuum leak. Can a blown brake booster cause
that? The booster & master cylinder are among the few things that I haven't
changed, and I know the booster uses vacuum.
It was getting dark as I got home so I just parked it for the night and
will
look at it tomorrow in the daylight. It was running great all day and this
first became noticeable at a stop light about a mile from home. I had to
keep popping it into neutral and revving the gas at lights to keep it
running. At the light before that I had done a pretty strong takeoff to get
ahead of another guy, but I doubt that that has anything to do with it. As
I
pulled up to the curb to park, it stalled out. The brake pedal feels really
hard like it does when the engine dies and you no longer have the power
assist. The pedal also seems to make a different squeak then I've ever
heard
before when I step on it. So, any chance it could have to do w/ a vacuum
leak because of a ruptured booster diaphragm?
Any advice is appreciated. The first thing I plan to do is check all the
vacuum lines. This is a 1969 El Camino w/ a 1958 283 w/ HEI.
Thanks,
John Nasta
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