I recently purchased a 2000 Ram 1500 4X4. I have a few questions about it
if the group could answer please..
It has a bit of aftermarket stuff put on it including bigger tires than
stock (315/75R16). It appears as though the previous owner didn't have the
speedo recalibrated because at freeway speeds, I'm going 12-15 mph faster
than what the speedo says. First question - is there any way to recalibrate
it without spending the $400 for a hypertech (or similar) device which I'll
basically only use that once because I don't trailer at all? Second, the
speedo being off would also throw off the odometer, would it not?
Secondly, I think the transfer case is leaking fluid. It's got the 231D.
Is there a quick fix for this or where is a good place to get a replacement?
Thanks for any help,
Your dealer can re-program the PCM for the new number of revolutions per
mile (you'll either have to figure that out, or get it from the tire
manufacturer - but I'm pretty sure those tires are 601revs/mile)
Alternatively, there are electronic recalibration boxes that you can wire in
between your ABS computer and PCM, that will correct the speed. These will
run between $150 and $200. A dealer should only charge $75 or so to
recalibrate the PCM.
Thirdly, but who's counting :)
Depends on where it's leaking from. Common points are the input shaft seal
(between the transmission and transfer case - requires removing the transfer
case to replace), the output shaft seal (where the driveshaft connects -
easy to replace, just have to remove driveshaft), or the drain/fill plugs
(easiest to fix - just tighten with a 3/8" allen wrench). Of course, it
could be leaking from the case itself (where the two halves join together),
but that's much less common.
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