Harsh Shift From 1st To 2nd Gear

4.0

definitely annoying
Typical Repair Cost:
$1,000
Average Mileage:
80,800 miles
Total Complaints:
1 complaints

Most Common Solutions:

  1. replace tcc regulator & isolator valve on trans (1 reports)
2008 Hummer H3 transmission problems

transmission problem

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2008 Hummer H3 Owner Comments

problem #1

Nov 102020

H3 3.6L V6

  • Automatic transmission
  • 80,778 miles

A D V E R T I S E M E N T S

https://www.sonnax.com/parts/2458-tcc-regulator-isolator-valve-kit solve the problem

- Name L., Dubai, United Arab Emirates

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