Driveline rumble in 4th gear of AW4
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Junior Member
Joined: Jul 2012
Posts: 74
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From: Champaign, IL
Year: 2000
Model: Cherokee
Engine: 4.6 Stroker
Took it for another test spin, the old code reappeared: P1281. It says that the cooling system is taking too long to warm up. Not a big deal to me considering that I have an extra big radiator and the thermostat opens at 180F. It's snowing outside anyhow, so its cold. For being in central Illinois, I should probably get a 195F thermostat.
Anyhow, I wanted to double-check my engine RPM at 70mph: 2500rpm.
I have an AW4, 31" tires and 3.55 gearing... so I think that's normal and the torque convertor is working correctly.
Anyhow, I wanted to double-check my engine RPM at 70mph: 2500rpm.
I have an AW4, 31" tires and 3.55 gearing... so I think that's normal and the torque convertor is working correctly.
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