2003 Pontiac Montana engine and engine cooling problems
10 owner complaints filed with NHTSA name the engine and engine cooling on the 2003 Pontiac Montana — 12% of all complaints for this model year.
What owners report
“The valve pulled out of rocker arm mid 2008 on #2 cal costing approx 600.00 repair again in 2009 the #3 cyl valve pulled out effecting another repair. Then a week later the #5 cyl has quit firing. This is the 3400 or 3.4 liter engine. My mechanic explained this was a common problem with this motor…”
filed Apr 23, 2009
“Was told intake manifold gasket failed. Over a thousand dollar fix with religious oil changes and coolant flushes, should not have happened. I have talked with many montana owners of different years and all have had the same problem. This cannot be a surprise! There is something wrong here... Even…”
filed Apr 5, 2009
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine and Engine Cooling problems in other Montana years
| Year | Reports | Share |
|---|---|---|
| 2006 Montana | 2 | 5% |
| 2005 Montana | 3 | 4% |
| 2004 Montana | 3 | 8% |
| 2002 Montana | 24 | 19% |
| 2001 Montana | 36 | 23% |
| 2000 Montana | 69 | 30% |
| 1999 Montana | 99 | 42% |
| 1998 Montana | 13 | 27% |
Other reported problem areas on the 2003 Pontiac Montana
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.