How can I fix my overdrive? It doesn't work weather the OD light is on our off
1990 Dodge Dakota
How can I fix my overdrive? It doesn't work weather the OD light is on our off
(1990 Dodge Dakota)

Runs fine thru 1st, 2nd & third gear but that's as far as it goes. Running highway speeds is really hard on gas, not to mention the extra wear on the engine
zzombie70a60c81 in Celina, TN on June 05, 2017
1 answer & 3 comments
Popular Answer
DaveJM on June 05, 2017
4th gear (overdrive) on your transmission is electronically controlled, but hydraulically activated via a solenoid and an accumulator on the valve body. The 4th gear is located in the "extension housing" area. My guess is that your electronic function is working, but hydraulically there is a problem. A diagnosis must be performed to find out what is going on. Have you checked the fluid to ensure it is clean and full?
zzombie70a60c81 on June 06, 2017
DaveJM on June 06, 2017
zzombie70a60c81 on June 06, 2017
General Diagnosis
$88 - $111 Learn MoreDaveJM on June 05, 2017
4th gear (overdrive) on your transmission is electronically controlled, but hydraulically activated via a solenoid and an accumulator on the valve body. The 4th gear is located in the "extension housing" area. My guess is that your electronic function is working, but hydraulically there is a problem. A diagnosis must be performed to find out what is going on. Have you checked the fluid to ensure it is clean and full?
zzombie70a60c81 on June 06, 2017
DaveJM on June 06, 2017
zzombie70a60c81 on June 06, 2017
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