1998 Dodge Ram transmission shifting

1998 DODGE RAM
140,000 MILES • 3.9L • V6 • 2WD • AUTOMATIC
Avatar
JIMFRANCIS65
  • MEMBER
  • 1 POST
when I pull out in my truck it shifts from 1st to 2nd with no problems, but in order to get it to shift into drive I have to lift off the gas and then back on the gas. once the truck hits drive it runs perfectly until I slow and it shifts back into 2nd. once It goes back to 2nd I have to start the process of lifting off the gas and back on it again all over again.
any help would be greatly appreciated.
Feb 3, 2015 at 8:21 AM
Advertisement
Avatar
CARADIODOC
  • ✓Experienced Mechanic
  • 34,367 POSTS
Check the kick-down cable between the throttle body and transmission. It likely is sticking.
Feb 3, 2015 at 9:48 AM
Avatar
STRAILER
  • ✓Experienced Mechanic
  • 55,224 POSTS
A weak map sensor or a partially clogged catalytic converter can cause this problem because it created less vacuum inside the engine. Here is a guide to help confirm the issue.

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

Here is the location of the MAP sensor so you can swap it out. Check out the images (below). Please let us know what happens.
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Jul 22, 2024 at 10:41 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.