NV3500 woes - Update

From: Crit Bennett (crit@engineer.com)
Date: Tue Apr 17 2001 - 17:14:19 EDT


Okay, it's update time. I took the truck by the dealer over lunch and didn't
have to do the back-to-back test drive. The Service manager heard it first
thing and spend the whole 3-mile ride staring ahead blankly and listening to
the tranny - yay, he paid attention! Anyway, he's gonna put in a call to the
Star-5 line or whatever to talk to some DC reps and see if it's a known
problem. The only real update is that my jerky shifting really feels like a
warped or misaligned clutch/flywheel. I can slip the clutch at idle and just
as the truck gets a few mph and the clutch catches, it lurches hard. It feels
the same as when the LSD's looking for traction but it's a one-time inpulse to
the drivetrain. They did replace the clutch and I'm wondering if they can be
misaligned. Any thoughts?

Crit

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Date: Tue, 17 Apr 2001 00:08:21 -0400 (EDT)
From: Crit Bennett <crit@engineer.com>
Subject: DML: NV3500 woes

Well, the truck went in today to have the throwout bearing and clutch replaced
and came back the same day. I have no idea why they felt compelled to replace
the clutch, but oh well. The clutch engages a good bit sooner now and I'm
still a little jerky on my shifts now so I'll give them credit for having DONE
something. As far as FIXING anything, I'm still S.O.L. The low-speed
cavitation and high-speed whine are both still there and I'm thinking it's the
countershaft or low fluid. I'll have the service writer drive it with me
tomorrow over lunch, then back-to-back it with a new 4.7 5-spd and we'll see
how it goes. Man, I hate this stuff. Has anyone else had a similar problem
and had it fixed/not fixed with a new throwout bearing?

Crit

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