Eugene, I have always tried to avoid a 'rigged' repair; however, if you
check w/GM technicians, you may find an easy fix similar to one GM
recommended a # of years back on 4wd's leaking differential grease. The
bulletins, IIRC, said to drain, wipe, wipe, & wipe some more to clean and
dry the seam where the gasket mated the 2 metal parts. Then, using a
caulking gun, apply a 'special' sealer into the seam and onto the 2 mating
pieces. Then, use one finger to evenly spread the sealer. Then, let it dry
completely, like overnight(?). Then re-fill with proper lube.
Sounded make-shift then and maybe even worse now; nonetheless, it
stopped the leak completely. And it would last until, of course, someone
parted the 2 metal pieces. Solution then, when reassembling, was to use the
same technique as before--no improved gaskets or seals on this job!
HTH & good luck, s
I guess the main question is can I just take off the crank pulley which
looks accessable if I take the wheel off and a plastic cover then just pop
the seal out or do I need to drop the oil pan or do I need to pull the
timing chain cover? I replaced that seal on the old Iron duke 2.5 but had
the timing cover off already but if I can pull the old and put in a new onw
without pulling the timing cover then it won't be too bad. I think thats
where its leaking from, I need to clean good so I can see exactly where its
What year is the Impala? It probably doesn't matter as the
3.4 v-6 requires a special tool to install the seal. You "might"
be able to get away with just banging it in, but the seal has to
be recessed inside the timing cover and this tool makes sure
that it's installed to the right depth.
It's been a while since I did one, but I believe that it's as simple
as removing the wheel, splash shield, remove crank damper,
remove seal, install seal....etc. If you did need any room, you
can simply unscrew the subframe bolts on the right side just
enough to lower the whole thing a bit for clearance. No
I HATE my 3.4 impala, or should i say my wife's impala. I just
dropped a load of money getting the intake gasket replaced at 65,000
miles, what a load of crap! I'll, stick to driviing my 93 ltz
caprice, it never breaks down.
I have a 2001 Montana with the 3400, which is currently in the shop with a
suspected head gasket leak. If it is the head gasket, the repair bill is
estimated to be around $1100 (Canadian). I must say, I was pissed when I
found out it had let go on me, but the damned thing has well over 200,000KMs
on it, so like yours, it's not covered. I actually called GM on Friday just
to ask a few questions, and I was told that they cover them up to 5 years.
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