1998 Jeep Wrangler
Hi all....I just purchased a 1998 Wrangler Spor (80,000 mlies)t in Arizona and drove it back to Missouri. It has the 4.0 straight six, 3-speed auto with a 3:73 rear end. Almost immediately into my 1400 mile journey, I was concerned about the engine RPM. At 65 MPH it was taching around 3,400 RPM. Obviously, this was due to the gear ratio. I called my local Jeep dealership in Missouri and talked to the service manager. He didn't seem terribly knowledgeable, but thought that was somewhat high. I guess my question is, although this is geared for the city (and the 4.0 six is pretty tough), could I have harmed the engine with this kind of trip or am I "OK" ? The Jeep seemed fine with it, but I guess I'm just used to the 2200-2500 lower rpm of a V8. Any thoughts would be greatly appreciated ! Thanks.....Kent
I'm sure that no harm was done but I'd have the transmission looked at. Sounds like the torque converter clutch isn't locking in. On the highway my '08 Grand Marquis tachs at about 1200 RPMs at around 70 MPH. My '00 Grand Prix, which has lost 4th gear and torque converter clutch lock-up, under the same highway conditions tachs out at about 3500 RPMs. HTH. -Jim
you have no problems what so ever.. well other than having 3 spd trans with 373 rear end... it is simply not made for hwy speeds. the engine is tough enough to keep running.
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