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Engine is revving while driving at higher speeds

Tiny
JBMELITSKI
  • MEMBER
  • 2004 JEEP CHEROKEE
  • 106,000 MILES
Grand Cherokee Limited, V8 While riding at 60-70 mph (3100 rpms) the tach shows engine revving 300 rpms then settle back to 3100. While riding at 60 -70 mph the engine frequently revs an additional 300-400 rpms and then settles back down to around 3100 rpms. It seems like a trans slip but the fluid is clean and full. This only happens at higher speeds.
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Monday, December 19th, 2011 AT 2:18 AM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
The symptom you described, where the engine revs an additional 300-400 RPMs and then settles back down, can indeed indicate a transmission slip.
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Monday, December 19th, 2011 AT 2:24 AM
Tiny
JBMELITSKI
  • MEMBER
  • 4 POSTS
It is a 4.7 liter Power Tech V8 with a 5 sped auto trans (45RFE) the transmission fluid was low thank you !
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Monday, December 19th, 2011 AT 2:41 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Thanks for letting us know, we are here to help, please use 2CarPros anytime.
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Monday, December 19th, 2011 AT 2:50 AM

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