1999 Pontiac Montana exhaust system problems

18 complaints about exhaust system have been filed for the 1999 Pontiac Montana, which is 5% of all its NHTSA complaints.

Complaints: 18 6% of this year's complaints
Typical mileage: 60,000 miles 12 complaints with mileage
Crashes and fires: 0 and 0
Injuries and deaths: 0 and 0

Source: NHTSA owner complaints

When exhaust system problems show up

Based on 12 complaints that include mileage. 50% were reported before 60,000 miles. The amber marker shows the median: half of these complaints happened before that mileage.

View the numbers

Mileage	Complaints
0k to 20k miles	1
20k to 40k miles	1
40k to 60k miles	4
60k to 80k miles	4
80k to 100k miles	1
100k to 120k miles	0
120k to 140k miles	0
140k to 160k miles	1
160k to 180k miles	0
180k to 200k miles	0
200k+ miles	0

What the data shows

Of the 12 exhaust system complaints that report mileage, the median is about 60,000 miles, and 50% were reported before 60,000 miles.

None of the exhaust system complaints mention a crash, fire, injury or death.

What owners wrote

Consumer was traveling 55MPH on highway and went to pass another vehicle, and accelerator pedal was stuck down to the floor. He was able to put vehicle in neutral, pull over to side of road, and shutdown. Dealership was aware of problem. Vehicle was towed to dealership. While having oil changed, consumer requested to have the air filter replaced, in order to replace air filter, the throttle cable clamp was loosened to gain access to the air filter housing, it was not lined back up properly causing the sudden…

April 2001

Leaking intake manifold gasget at 44,000 miles. Was found by dealer when in for normal service. Told they look for this problem. This is out of warranty service even though this is a common problem on the 3.4l engine.

Reported at 44,000 miles, June 2003

Exhaust system problems in other years

2008
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997

Exhaust system problems across all Pontiac models