Hey everyone,
I've recently came to notice a problem with my 1997 Dodge Ram 1500. When I first got my 5.2L V8 it had some transmission issues. For one it would shift into 2nd gear but never 3rd and my RPMs would ALWAYS sky-rocket. Well, I unplugged it from the computer and shifted it manually for about 6 months. I woke up one day and decided to plug it back in to see if it fixed itself. It had, for the most part, it would shift nicely and I could get up to 75 before my transmission refused to shift into any higher of a gear. Well I've recently noticed that whenever my gas light come on my transmission starts acting up again. When I first got my truck the gas light was on and my fuel pump float was off by about a quarter of a tank. I'm not sure if any of this matters. I've talked to a few of my buddies and they have no idea whats going on. I just need some help.

Thanks,
DodgeGuy1787

 

Any codes? You unplugging it and it shifting means you have an electrical issue

 

There are 7 codes, I will list them when I'm off work.

 

Did you clear the codes from when you had it unplugged? If not those codes aren't valid.

 

I did not clear the codes, I will clear them.

 

Yes clear them, leave the transmission plugged in and drive it for a bit.

 

I plugged in the code reader and only one code came up,, P0720 - Output Shaft Speed Sensor.

 

What year is your truck? If the computer doesn't know how fast you are going it won't shift the transmission. Could be a bad sensor or wiring. Download the factory service manual for your truck from the FAQ section. Wiring is in 8W

 

It's a 1997 Dodge Ram 1500 318 V8 5.2L

 

If it's 4wd that sensor will be in the transfer case 2wd it's on the tail housing of the transmission