6.7

fairly significant
Typical Repair Cost:
No data
Average Mileage:
84,300 miles
Total Complaints:
3 complaints

Most common solutions:

  1. not sure (2 reports)
  2. recall! (1 reports)
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problem #3

Jun 182010

Trailblazer LS 4.2L

  • Automatic transmission
  • 106,000 miles

My truck will go from having a half a tank of gas to being completely on E within the blink of an eye, gas light dinging, all while i just lost power driving down the interstate at 75 mph. Loss in power, won't go ove 45 mph, then 30mph, but if you stop and let it sit for a few minutes, it will start up and may not give you this problem again for a week or so or longer or it may do the same thing in 10 minutes. Seems to only happen when it's very hot outside while driving on open highway. Mechanic suggests replacing the throttle body, but i think i'm going to clean it first. Have read where several people are having this same problem....anyone found a fix???

- Gena S., Moultrie, GA, US

problem #2

Aug 012006

Trailblazer V6

  • Automatic transmission
  • 100,000 miles

I have a 2004 Trailblazer and would never buy another one, can not fix the problems that should be fixed by the dealership OR THE MANUFACTOR OF CHEVY'S, ALL THE GAUGES STOPPED WORKING, FILL UP WITH GAS SHOWS EMPTY, CHANGE THE OIL SHOWS EMPTY???? HOPE THIS YEAR 2004 IS A RECALL ON FIXING THE GAUGES, GAS, OIL, ETC............

- Diane B., Montgomery, TX, US

problem #1

May 182008

Trailblazer LX

  • Automatic transmission
  • 46,879 miles

I get in to my car and the tank registers full, the next time I start my car the tank registers on E....next thing I know I am stuck in a parking lot (thank goodness) completely out of gas!!!

- Jenny O., Salisbury, NC, US