Go Back   DODGE RAM FORUM - Dodge Truck Forums > Dodge Ram Generations Forum > 1st Gen : 1981 - 1993 > General Discussions


General Discussions

Throttle Position Sensor Fix D250 Cummins


This is a discussion on Throttle Position Sensor Fix D250 Cummins within the General Discussions forums, part of the 1st Gen : 1981 - 1993 category!
I have a 1992 gen 1 Cummins diesel and the over drive has been acting up for some time now. ...


Reply
 
LinkBack Thread Tools Display Modes
Old 06-07-2015, 06:09 PM   #1 (permalink)
Junior Member
 
Join Date: Jun 2015
Age: 70
Posts: 3

Ram Year: 1992 D250
Engine: 5.9L Cummins 2WD
Default Throttle Position Sensor Fix D250 Cummins
I have a 1992 gen 1 Cummins diesel and the over drive has been acting up for some time now. It goes in and out of overdrive at will and going down the freeway one minute at 70 MPH and then down to 55MPH will get me shot. I changed out the TPS unit twice but a $500 I must look for another solution.
I read a lot about TPS problems and OD shifting problems on different Diesel Forms on the internet and got a lot of great information that inspired this fix:

I picked up a 5,000 ohm (linear taper) potentiometer (for $1.50) at radio shack. I disconnected the TPS plug and clipped it off and striped back the insolation to expose the braided wires. I purchased 10 feet of black electrical braided 3-strand wire. Like what you might use for and extension cord and using heat shrink and solder I connected the new wire to the TPS wire from the harness. It does not matter which wires are connected you will figure that out later. Just solder the wires and cover the connection with the heat shrink. Then rout the cable back along the existing wiring harness and over to the firewall and snake it in with the other existing wires. I installed the potentiometer in the dash near the OD button. You will have to play with the connection until you get it right by testing the potentiometer as you drive down the road. It is not hard you only have two wires to deal with. When you find the right combination solder the leads to the potentiometer and be sure to install the heat shrink. Now I can "dial-in" the shift point of my OD. It works great! I can cause the OD to shift (and down-shift) at a constant speed anywhere from about 33 to 50 mph. I have had this fix installed for over a year and it is SUPER COOL!


Sponsored Ad
Register to remove this ad.
gen 1 forever is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
throttle position sensor problems? heavenw Engine & Performance 4 06-18-2014 01:54 AM
4.7l throttle position sensor badblackram06 Engine & Performance 11 11-05-2013 08:24 PM
Possible throttle position sensor starting to go out? SmokedRam Engine & Performance 29 10-28-2012 04:05 PM
Throttle Position Sensor HemiBabe Engine & Performance 48 06-20-2011 10:06 AM
Throttle Position Sensor OklaHemi Engine & Performance 44 11-11-2010 10:33 PM

<




GM Truck Forum
Ford Raptor Forum
Chevy Tahoe Forum
Chevy Cobalt Forum
Chevy Camaro Forum
Toyota FJ Cruiser Forum
Ford Truck Forum
88-98 GM Truck Forum
73-87 Gm Truck Forum
Ford Expedition Forum
Chevy Equinox Forum
Chevy Cruze Forum
Jeep Liberty Forum
Jeep Forum
Dodge Ram SRT10 Forum
Chrysler 200 Forum
Scion xD Forum
Scion xB Forum
Dodge Challenger Forum
SRT Forum
Nissan Titan Forum
Buick Enclave Forum
Cadillac Forum
Cadillac XTS Forum