2004 Chevrolet Avalanche power train problems
14 owner complaints filed with NHTSA name the power train on the 2004 Chevrolet Avalanche — 8% of all complaints for this model year.
What owners report
“4x4 transmission began locking and slipping. Developed a distinctive "clunking" sound when shifting between gears. Now most noticeable between second and third. Additional grinding sound occurs when driving. Noticeable at all speeds. *dt”
filed Dec 20, 2014
“Drove off a parking lot at about 20mph and the transmission quit. Reverse works and all the low gears work out not on automatic mode. *tr”
filed Dec 31, 2012
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
This informational bulletin provides technicians with information regarding automatic transmission oil cooler flow test essential tool J-45096 TransFlow®.
02-07-30-052J · Service Bulletin/Repair Instructions · issued May 29, 2015
Power Train problems in other Avalanche years
| Year | Reports | Share |
|---|---|---|
| 2013 Avalanche | 1 | 1% |
| 2012 Avalanche | 3 | 8% |
| 2011 Avalanche | 9 | 7% |
| 2010 Avalanche | 3 | 3% |
| 2009 Avalanche | 1 | 1% |
| 2008 Avalanche | 4 | 2% |
| 2007 Avalanche | 13 | 3% |
| 2005 Avalanche | 9 | 13% |
| 2003 Avalanche | 14 | 7% |
| 2002 Avalanche | 25 | 6% |
Other reported problem areas on the 2004 Chevrolet Avalanche
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.