engine light

I have an '06 Commander with the engine light on, and it won't shift out of 3rd gear. 1. Is there a way for me to shut off the engine light, resetting codes? 2. If it is the ECU to replace it with a used one, what numbers do I need to match? It is a 5.7L Hemi and it runs great, but not shifting...

Hi. Im a newbie here and a First time Jeep Owner. I have a 2005 Jeep wrangler 6 speed 4.0L and my engine light JUST came on today. :cry: The guages all look normal but obviously theres something needing attention. My question is, where do I start on finding out where the issue is? I know I can...

I am having a problem with my speed sensor. Changed the transmition output no luck. Changed the rear speed sensor 4 times still no luck. I just ordered a new one from the dealer so hopefully that will work. But does any one else know what I can do? thanks!!

I am having a problem with my speed sensor. Changed the transmition output no luck. Changed the rear speed sensor 4 times still no luck. I just ordered a new one from the dealer so hopefully that will work. But does any one else know what I can do? thanks!!