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Author Topic: 97 Ram 1500 Shift Problems  (Read 1498 times)

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Offline ChrisKD

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97 Ram 1500 Shift Problems
« on: September 24, 2007, 07:31:53 AM »
Anybody care to help me on this one?

1997 Ram 1500 4x4 Ext Cab, 360-518OD

Truck doesnt shift out of 1st gear on the open road.  Fluid is full, doesnt smell burnt or look funky, Linkage hasn't been F'ed with.

I'm thinking something with the shift solonoid (so is my dad). What's anybody else got to say on this?
76 Ramcharger 318/727/203
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Offline KThaxton

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Re: 97 Ram 1500 Shift Problems
« Reply #1 on: September 24, 2007, 08:28:46 AM »
Any codes?
STOP PLATE TECTONICS!

You're absolutely correct, Kendall. My mistake  ;D

Offline DODGEBOYS

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Re: 97 Ram 1500 Shift Problems
« Reply #2 on: September 24, 2007, 09:01:16 AM »
Vehicle Description:  1999 Dodge Ram 2500 Pickup 5.9L, DIESEL, Vin 6, Turbo, Eng Cfg L6 
 
   
 
 Mileage:  87722 
 
   
 
 Customer Concern:  Once the vehicle is warm, the transmission does not always want to shift out of first or second gear. 
 
   
 
 Tests/Procedures:  1. Check the governor pressure sensor voltage Key On Engine Off (KOEO). It should be about 0.5 -0.7 volts.

2. Monitor the desired governor pressure. If that goes higher along with vehicle speed, the Output Shaft Speed (OSS) sensor is working OK.

3. If the OSS sensor is working OK, replace the governor pressure solenoid. 
 
   
 
 Potential Causes:    Speed sensor
Governor pressure solenoid
Wiring
Powertrain Control Module (PCM)

** Confirmed Fix **
Governor pressure solenoid
 
 
   
 
 Tech Tips:  The OSS sensor is used by the Powertrain Control Module (PCM) to control the governor pressure. The governor pressure sensor is monitored by the PCM, so the PCM can achieve the desired governor pressure. As the output shaft speed increases, the duty cycle to the governor pressure solenoid will come down. The pressure comes up creating the upshifts. 
 
put your truck info HERE
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Offline DODGEBOYS

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Re: 97 Ram 1500 Shift Problems
« Reply #3 on: September 24, 2007, 09:03:33 AM »
Vehicle Description:  1997 Dodge Ram 1500 Pickup 5.9L, GAS, Vin Z, Eng Cfg V8 
 
   
 
 Mileage:  139892 
 
   
 
 Customer Concern:  Having a transmission shifting problem. 
 
   
 
 Tests/Procedures:  1. Check the governor pressure, the voltage on the pressure sensor and the duty cycle to the solenoid when it is acting up.

2. Normal governor pressure stopped is 0 PSI and goes up approximately 1 lb per MPH.

3. If the pressure reading on the gauge does not agree with the pressure sensor reading, replace the pressure sensor. 
 
   
 
 Potential Causes:  Governor pressure sensor
Governor pressure solenoid
Wiring
Powertrain Control Module (PCM) 
 
   
 
 Diagnostic Codes:  None 
 
   
 
 User Comments:   None
 
 
   
 
 Category:  Transmission (Automatic)
Shifting Problems
put your truck info HERE
MOPAR TO YA! AARON HOWORD TOWNSEND / SLANTEDMIND---GOD BLESSDODGEBOYS FSM STORE
ramchargercentral@hotmail.com
DO NOT use the site IM,s to contact me  l have them turned OFF

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Re: 97 Ram 1500 Shift Problems
« Reply #4 on: September 24, 2007, 09:08:44 AM »
Vehicle Description:  1999 Dodge Ram 2500 Pickup 5.9L, DIESEL, Vin 6, Turbo, Eng Cfg L6 
 
   
 
 Mileage:  100000 
 
   
 
 Customer Concern:  Transmission will not shift out of 1st gear. 
 
   
 
 Tests/Procedures:  1. Check the resistance of the Output Shaft Speed (OSS) sensor. It should be less than 800 ohms. 
 
   
 
 Potential Causes:    Bad OSS sensor

** Confirmed Fix **
Bad OSS sensor
 
 
   
 
 Diagnostic Codes:  None 
 
   
 
 User Comments:   None
 
 
   
 
 Category:  Transmission (Automatic)
Shifting Problems 
 
put your truck info HERE
MOPAR TO YA! AARON HOWORD TOWNSEND / SLANTEDMIND---GOD BLESSDODGEBOYS FSM STORE
ramchargercentral@hotmail.com
DO NOT use the site IM,s to contact me  l have them turned OFF

Offline ChrisKD

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Re: 97 Ram 1500 Shift Problems
« Reply #5 on: September 24, 2007, 10:56:51 AM »
No Trouble Codes and i think i may have found the problem.

My grandfather took it out on the road while i rode shotgun..  It does actually shift out of first gear, but not before hitting the Redline.. IE it's winding out at top rpm's before shifting.

We brought the truck back and i decided to check the fluid again (just to shut my grandfather up, incase you're wondering it's his truck) and While i was checking the fluid i noticed that the Kickdown cable has alot of slack in it

It must be stretched or hung up, you have to manually push the cable back after you open the throttle.
76 Ramcharger 318/727/203
48 Dodge Pickup
83 Scamp GT 2.2 Turbo AWD
92 Dakota 5.2/518/231
84 PW50 273/727/100/203
74 Duster 6-71 Blown 340/833/D60
73 Duster 340/727/8.75
73 Dart Sport 340/833/8.75
73 Dart Sport 340/727/8.75
71 Duster : Viper V10/6-Speed/8.75
71 Demon 8-71 Blown 540 Hemi/833/D60
72 Demon 340/833/8.75
65 Cuda 273/904

Offline KThaxton

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Re: 97 Ram 1500 Shift Problems
« Reply #6 on: September 24, 2007, 11:37:33 AM »
They did come with a return spring on the trans lever (on the trans). Maybe its missing?
STOP PLATE TECTONICS!

You're absolutely correct, Kendall. My mistake  ;D

Offline DODGEBOYS

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Re: 97 Ram 1500 Shift Problems
« Reply #7 on: September 24, 2007, 12:44:58 PM »
the spring is on the tranny lever
put your truck info HERE
MOPAR TO YA! AARON HOWORD TOWNSEND / SLANTEDMIND---GOD BLESSDODGEBOYS FSM STORE
ramchargercentral@hotmail.com
DO NOT use the site IM,s to contact me  l have them turned OFF

 

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