Buying 99 24V Turbo Diesel - advice?
The 6spd (NV5600) first came out in '00 (with the '01 model year) with the
HO engines. If you're towing heavy, the 6spd is nicer, because of the
closer gear ratios, you don't lose as many RPMs when upshifting. The NV5600
also addressed the one weakness of the NV4500 (the 5spd), and that was the
'5th gear nut' problem.... lugging the engine below 1500RPMs in 5th gear
would cause a retaining nut to back off, and you'd lose 5th gear. It's not
a reason to dismiss the NV4500 outright, but it's just something to be aware
of, and the problem is easily avoided.
Club cabs went away shortly after the introduction of the QC (I think there
was only a 1-year carry-over - maybe 2 years).
Most likely. I don't think I've ever seen a camper for a short-bed (though
I'm sure they do exist... somewhere).
With a late-model 24V engine, manual trans, and loaded down with a camper
and a light trailer, I'd guess somewhere in the 13-15MPG range. But that's
just a guess.
Two known weaknesses of the engines in the trucks you're looking at are the
fuel pump (you should install a fuel pressure gauge and monitor it to detect
early signs of fuel pump failure - which could in turn damage the injection
pump, leading to a $2,000 repair), and the '53 block' issue (though this is
only with the early 24V engines). It would take too long to go into it
here, but essentially there was a casting problem with a certain run of
engine blocks that results in a greater possibility of cracking. The blocks
in question can be identified by the cast '53' in the side. Look on the
diesel truck forums (http://www.turbodieselregister.com
http://www.dieseltruckresource.com) in the 2nd Gen forums for discussions
about this. In short, don't buy a truck if it has one of these engines in
it.
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