Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.

NHTSA — Engine And Engine Cooling: Cooling System Problems


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
59,250 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2003 Pontiac Montana cooling system problems

cooling system problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2003 Pontiac Montana:

Unsubscribe any time. We don't sell/share your email.

2003 Pontiac Montana Owner Comments

problem #2

Jan 052009


  • 73,000 miles


Problem with lower intake manifold that has to be replaced due to bad dexcool. Dealership will not cover repair for vehicle.

- Peachtree City, GA, USA

problem #1

Apr 112006

Montana 6-cyl

  • Automatic transmission
  • 45,499 miles
This is my second Pontiac mini van with a leaking intake manifold gasket. The 1994 started leaking at 60K miles, my current van a 2003 is leaking at 45K miles. In my 94 van the engine failed at89K with religious oil changes and coolant flushes. My Montana also has had coolant and oil changes often. I know of others with the same problem.

- Mtprospect, IL, USA

Not what you are looking for?