high rpm

  1. D

    Cylinder 6 Misfire detected after 3000+ RPM

    This seems like a popular topic here but I’ve read all the threads and I’m still unsure if they apply to my case. Issue is now as the title and the code pictures say. I have a 2003 4.0 TJ Wrangler X with 138k miles. I’ve replaced coil package, spark plugs, MAP sensor, TPS sensor, and bank 2...
  2. R

    High RPMs at highway speeds

    Hi guys, I have 2001 Jeep Wrangler Sahara. This car has caused me no end of trouble this year. Most recently, the transmission completely died. I opted for the rebuild vs. the new part to save about $1000. However both before and after picking up the Jeep, it just does not seem to shift to where...
  3. T

    2000 RPM only when moving

    I have an unusual (I think) issue. My manual transmission 1997 Jeep TJ 4-banger over revs (around 2,000 rpm), but ONLY while the car is moving. Once the wheels stop (or speed drops below 5 mph), the revs drop to the correct ~850 rpm. As long as the car is in motion, the engine stays at 2,000...