Victor arroyo
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Vehicle doesn’t go into overdrive (4th) any possible causes?
2002 z71 Tahoe not going into overdrive
- Thread starter Victor arroyo
- Start date
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Mechanic421
06 Denali XL
First check codes. Have vehicle scanned. Check fluid condition and level.
Maybe @rockola1971 can chime in with his transmission expertise. But yes, check the basics first, codes, fluid level and fluid condition.
