NHTSA — Engine And Engine Cooling: Cooling System Problems


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
47,833 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.

2001 Pontiac Montana cooling system problems

cooling system problem

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2001 Pontiac Montana Owner Comments

problem #10

Feb 032010

Montana 6-cyl

  • 112,438 miles


Service traction light stays on. Turn signal lights blinked really fast and they light up everytime I push on the break. Replaced brakes. Problem caused tail lamp circuit board and light bulbs to burn out and melt connectors. Was unable to drive the vehicle because people on the road would not know when I was breaking and could possibly run into me. Knocking sound on right wheel and steering wheel is loose. Replaced stabilizers and sensors, rotated and balanced wheels. Scared that I may loose control of the car because it causes the traction to turn off and the vehicle slides which could lead to a multi-car accident. It also needs new shocks; they are leaking. Vehicle is running hot and is eating up the coolant. Have already put 2 gallons in the vehicle since Sept. Water pump is leaking. Passenger window keeps getting stuck. Dealership says that the door needs to be replaced because it is an electrical issue. The majority of the problems that I am having are due to electrical issues. If you google problems with this particular model, you will find that the complaints are regarding the same issues that I have stated. I am low income and cannot afford to keep spending money to hypothesize what is the cause. I need GM to find out what is wrong with this vehicle. I can't get out of my contract and this vehicle is a road hazard. I noticed the issue with the door the same that I test drove the vehicle. The dealership refused to repair it even though it was on the inspection report. Still disputing issue with them. I noticed the problem with the wheel in April and have been constantly taking it back every since the first repair was done.

- St. Louis, MO, USA

problem #9

Jun 152007


  • Automatic transmission
  • 68,000 miles
The compressor for my 2001 Montana, having only 68K miles was diagnosed as defective by jones Pontiac service in lancaster. There was a crack in the compressor, which wasn't caused by wear & tear. The manufacturer, Pontiac refused to replace this at a discounted cost. The replacement cost was $1,200. The compressor doesn't work, and would leak freon into the atmosphere if used. I haven't had this fixed or permitted freon to be filled into the compressor, so I haven't used the compressor. The compressor is needed to defrost the windows in the winter, which could cause a hazardous situation. I believe Pontiac should hold the manufacturer accountable for this abnormal defect, and offer a 75% discount on the part.

- Lititz, PA, USA

problem #8

Nov 242006

Montana 6-cyl

  • Automatic transmission
  • 7,000 miles
The air conditioner compressor has failed and my mechanic said he has had a rash of failures with the GM products, in fact he received a tech notice to the effect that he could expect a lot of trouble with this product. I called GM with no satisfaction, with so many failure they should take some responsibility for this failure. The cost for this item installed is over $800 and for anyone on retirement this is a major expense. I would like to know how many failure occurred and how many complaints GM has received over this. I would think they would be afraid to recall this product maybe it would put them out of business as they already are in deep trouble for not selling a good product. Thanks.

- Rumford, ME, USA

problem #7

Apr 272006

Montana 6-cyl

  • Automatic transmission
  • 66,000 miles


Dexcool coolant leakage signs out of intake manifold, service professional reported it as a problem with GM 3.4 engines and would lead to costly engine repair if not fixed. Replaced gaskets etc cost $956. 66000 klm.

- Niagara Falls, 00, USA

problem #6

Apr 172006

Montana 6-cyl

  • Automatic transmission
  • 83,000 miles
Coolant leak at intake manifold gasket.

- Elgin, IL, USA

problem #5

Mar 222006

Montana 6-cyl

  • Automatic transmission
  • 60 miles
Vehicle was not producing heat for occupant compartment. Noticed that coolant was low. Took vehicle to dealer with prior knowledge from your site regarding the intake manifold issues with the Montana and other GM vehicles. The intake manifold on my vehicle has failed, and is leaking coolant. No coolant ever reached the ground, as it was evaporating on the engine. There is a petition in line with over 10,00 signatures requesting a recall for this issue.

- Rochester Hills, MI, USA

problem #4

Aug 182005

Montana 6-cyl

  • Automatic transmission
  • 44,833 miles


I bought a 2001 Pontiac Montana w/40,900 mi.in July 2004, on 8/18/2005 the head gasket blew out w/44,800mi.I towed to local garage where I was told to take to the dealer where I bought it, because of the "well known problems with the 3.4L engine cooling system" I have been quoted a price of $1325, GM said that they will pay $300

- Ambridge, PA, USA

problem #3

May 102005

Montana 6-cyl

  • Automatic transmission
  • 59,000 miles
Intake manifold gasket leaking causing dexcool to leak into engine. Gasket had to be replaced. GM has issued a service bulletin about this problem and will do nothing to help the consumer. Service bulletin # 03-06-01-010 be aware!!!!! bulletin says new gasket must be made from a different type of material in order to correct problem. If this is the case why should we have to cover the expensive repairs"??" somthing has to be done!

- Covington, GA, USA

problem #2

Mar 052005

Montana 6-cyl

  • Automatic transmission
  • miles
Leaking dexcool, needs mainifold gasket, very common problem with Montanas and GM is aware of it and released a service bulletin on it # 03-06-01-010 requiring a new intake manifold gasket be installed but at owners expense. Crazy!

- Covington, GA, USA

problem #1

Jan 192005

Montana 6-cyl

  • Automatic transmission
  • 38,000 miles
2001 Pontiac Montana with 38K mi. Observed coolant loss with no visible leak. Dealer diagnosed intake maniforld failure, repair cost of $971, no warranty coverage.

- Beachwood, OH, USA

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