RE: RE: Tire size - speedometer recalibration

From: Gabriel A. Couriel (BigGabe@fiufiji.com)
Date: Thu Nov 07 2002 - 15:08:47 EST

don't forget to get the correct number. the number i gave you are for the
michelin's, but you should really do the research so you have the correct
number.

Gabe Couriel

http://frontpage.tripod.com/fijigabe0 

---
1998 Dodge Dakota Club Cab Sport
3.9L V6
5-Speed Manual Transmission (AX-15)
3.21 Open Rear End

-----Original Message-----
From: owner-dakota-truck@bent.twistedbits.net
[mailto:owner-dakota-truck@bent.twistedbits.net]On Behalf Of Korey
Atterberry
Sent: Thursday, November 07, 2002 1:59 PM
To: dakota-truck@dakota-truck.net
Subject: DML: RE: Tire size - speedometer recalibration

Thanks everyone for the info.  I knew you guys would know, so now I'll
have to teach the guys at the service dept...  Does anyone know if the
FSM shows the table for the possible revs/mile settings?

Ron- thanks, I figured the rear sensors and the front sensors were
taken into account, but if I replace all 4 tires with the same size, am
I still going to have problems you mentioned?  I don't have a problem
with spending $40 to get the thing flashed though, if they'll have a
setting for my new size (705 rev's per mile - thanks Gabe).

Thanks again,
Korey

Date: Wed, 6 Nov 2002 21:21:21 -0800
From: "Ronald Wong" <ron-wong@cox.net>
Subject: DML: RE: Tire size - speedometer recalibration

There is a table entry for your tires that needs to be set by the
dealer.
It's the 5th entry or 31x10.5x15.  The entry you have is too far off
and
your computer and CABS system is smarter than you think.  The sensor in
the
back figures your revolutions per mile but the sensors in the front
compute
your actual revolutions to the mile and compares the two and will set
an
MIL.  As for a speedo gear there's no such animal on the 2000's.  The
PCM
gets all the calculations for mileage from the RWSS near the ring gear
and
the CABS computer.  Comparisons are made to the FWSS's and information
is
stored in the PCM.

Ron
00 PB SLT QC 4X2 5.9 46RE 3.92 LSD
For modifications see my DML Profile (URL follows)
http://www.twistedbits.net/WWWProfile/dakota/Kw9pV1EkFeOYY

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