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Thread: 99 2500 trans problem
02-03-2013, 08:03 AM #1
- Join Date
- Oct 2012
99 2500 trans problem
Hi yall , I just bought a 99 2500 with the 6.0 motor,,auto trans with the tow/haul feature,,. going down the road the torque converter
is only locking up once in a while,, is there a light that is suppose to come on when it is in tow/haul mode,, not sure what is going on with this trans as i've not had one like this before,, truck has 210000 on it,,what should i look for,,,thanks for any help,,Rhonda
02-03-2013, 08:56 AM #2
if you operate with the tow haul mode on the dash ligh will tell you this. when in this mode the transmission will have delayed up shifts rpms will go higher and the shift will be harsh.
since you just purchased this I would replace all the drive train fluids. trans/transfercase/front//rear diff.
removal of the trans pan and clean pan replace filter. rear diff remove cover clean box/magnet and replace gear oils.
02-03-2013, 09:30 AM #3
- Join Date
- Oct 2012
thanks J cat,, the light is not comming on on the dash when i push the botton, just bought the truck friday,so havent had time to check fuses or really anything ,,drove it to a swqp meet about 100 miles one way yesterday is first time ive had out on the road for any distance,, but the light is not comming on in the dash. thanks Rhonda
02-03-2013, 09:42 AM #4
Rhonda.....What Most likely Happen is that the Wire that runs down the Shifter and where it meets the Steering Column, down at the Base, has over-time has got Pinched and finally Broke.....this is Why the Tow/Haul light is not coming on, when you press the Button,
Here's a pic of the Offending Wire:
To fix it.....just located the Break in the Wire, and you can either, Crimp Splice or Solder it back together and you should be good to Go.
Last edited by 99'HEARTBEAT; 02-03-2013 at 09:53 AM.
5.3 l 3.73 l G80
BLACK BEAR CUSTOM TUNE
SNUGTOP l COLORMATCH l KATZKIN
02-03-2013, 10:32 AM #5
this light not coming on is most always because the wire in the shift handle was cut too short. the conductor then breaks usually at the base where the pivot / rubber boot is.
the picture given here gives you a good look at the set up.
If GM made that wire 1/4 in longer this would never occur.
the wire is the orange one.
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