Limp mode


New member
Ive got a 2001 4.0 XJ rockin a 4.5” RC lift sittin on 33x12.50. Ive noticed a significant loss of power while accelerating and at 3,000rpm it hits rev limiter. I do not have a code reader to find any codes. Ive replaced the coil pack and spark plugs. Wondering if maybe it could be fuel related? Any information would be great just tryin to get a sense of what could be wrong. Thanks!

Sent from my iPhone using mobile app

Getting the codes is most important. Limp mode is often a timing or misfire issue. Sometime overheat…

Limp mode keeps you from damaging the engine. So borrow a code reader before driving

Never look down on anyone unless you are helping them up - Jesse Jackson