2003 Chevy Suburban RPM surges in 4th gear / Overdrive

2003 CHEVROLET SUBURBAN
90,000 MILES • V8 • 4WD • AUTOMATIC
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THEWHEEL
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  • 2 POSTS
If I am driving maintaining a speed between 45-50 in normal conditions the truck RPM's not speed hesitate and lunges.
Oct 28, 2009 at 11:39 AM
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DR LOOT
  • CERTIFIED EXPERT
  • 2,311 POSTS
It sounds like you've got a bad or intermittent lockup torque converter solenoid that is bad, you will have to take it to the transmission shop and have them repair it, because it's a computerized transmission, and you don't have the tools.
Nov 1, 2009 at 1:53 PM