truck wont shift into 4th gear

[alextsi66]

any ideas? it only stays into 3rd, when i swapped out the overdrive unit the speed sens was broken so i took the one out of my 2wd unit and threw it in. could that be the problems?

[dchoate2]

Man I'm in the same boat...and I've changed my tps my tc lockup and od sloenoid and the gov pressure sensor, tried a mystery switch cleaned my grounds, and all I'm still stumped except when I lost od my wait to start light came on and doesn't shut off now...

[alextsi66]

sucks i want to be able to go faster then 45mph haha

[dchoate2]

Lol I can get to 55

[alextsi66]

well if i find something out i will let you know first thing becase i know how it sucks!

[dchoate2]

Same here man appreciate it

[lucky1]

Confirmed Fix
1. No overdrive and has a code 45 for governor pressure....
1997 Dodge Ram 2500 5.9L, DIESEL, Vin D, Turbo, Eng Cfg L6 *
Test Details... Confirmed Fix Details...


Tests/Procedures: 1. Check for a 5 volt feed at the Orange wire at the transmission solenoid wiring. 2. Check for approximately 0.6 to 0.7 volts at the Powertrain Control Module (PCM) connector C2 pin B29 with th...

1 Confirmed fix Powertrain Control Module (PCM)
Solenoid
Wiring
1 - Transmission Valve Body

[lucky1]

Description Potential Causes Confirmed Fix
1. Transmission has no overdrive engagement....
1995 Dodge Ram 3500 5.9L, DIESEL, Vin C, Turbo, Eng Cfg L6 *
Test Details... Confirmed Fix Details...


Tests/Procedures: 1. Check for voltage at the solenoid connector. Check the wire between the Powertrain Control Module (PCM) and the OD solenoid. Do an actuator test with a scan tool and connect a DVOM to the Brown wi...

1 Confirmed fix Overdrive Solenoid
Powertrain Control Module (PCM)
Sensor Input
1 - Overdrive Unit, Overdrive/Lock-Up Solenoid Pack

2. The transmission is not shifting into overdrive. Code P1693 is present....
1998 Dodge Ram 3500 Quad Cab 5.9L, DIESEL, Vin 6, Turbo, Eng Cfg L6 *
Test Details... Confirmed Fix Details...


Tests/Procedures: 1. Check the codes in all available modules, this code means there is a fault code present in another module such as the Electronic Control Module (ECM). There is an ECM and a Powertrain Control Modu...

1 Confirmed fix Fault Code
1 - Powertrain Control Module (PCM)

3. No overdrive. Scan tool shows the Powertrain Control Module (PCM) is commending the solenoid on. Have power to the solenoid, tried grounding the solenoid manually and still do not get overdrive. No c...
1995 Dodge Ram 3500 5.9L, DIESEL, Vin C, Turbo, Eng Cfg L6 *
Test Details...


Tests/Procedures: 1. The solenoid assembly has failed or there is an internal hydraulic problem inside the transmission.... Solenoid Solenoid assembly.
Transmission Mechanical Problem

[alextsi66]

i would hate to say if that didnt help me but i dont quite understand it when they all end in the middle of the pocedure. my tps is banged up pretty bad so im thinking of getting a new one...little little plastic back fell off and the insides came out i tried to put it back together but im not sure how well i did

[alextsi66]

Originally Posted by dchoate2

Man I'm in the same boat...and I've changed my tps my tc lockup and od sloenoid and the gov pressure sensor, tried a mystery switch cleaned my grounds, and all I'm still stumped except when I lost od my wait to start light came on and doesn't shut off now...

have you tried the output speed sensor on the overdrive unit i herd that helped some people that will be my next try after tps

[95cummins4x4]

how much did you pay for your tps?

[illflem]

I paid $148 at Napa last spring.