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.

Leaking Coolant, Intake Manifold Gasket Failure

8.2

pretty bad
Typical Repair Cost:
$1,107.00
Average Mileage:
126,411 miles
Total Complaints:
11 complaints

Most Common Solutions:

  1. not sure (5 reports)
  2. replace intake gasket (5 reports)
  3. had to replace the engine because of damages caused (1 reports)
2000 Pontiac Montana cooling system problems

cooling system problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2000 Pontiac Montana:

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

2000 Pontiac Montana Owner Comments

problem #11

Jun 182013

Montana 3.3L V6

  • Automatic transmission
  • 160,000 miles

A D V E R T I S E M E N T S

First and last Pontiac I will ever purchase. Only purchased because we were in desperate need of a family vehicle and we were able to purchase the vehicle outright and not have to worry about financing. I've worked on older Pontiacs ( Early 90's ) and have seen what the engineer's faults were in the water pump/cooling system, for friends of the family.

- , Pawnee, OK, USA

problem #10

Jan 152012

Montana 3.4 Liter

  • Automatic transmission
  • 168,000 miles

Ongoing coolant loss and subsequent check engine light. Checked found problem codePO141 Heater circuit, HO2S-12 (bank 1, Sensor 2, heater circuit malfunction. Replaced O2 sensor on catalytic converter. Still had check engine Lite. Consulted with mechanic to replace front sensor on exhaust pipe. Analysis revealed coolant contaminated and at this time unclear whether I have intake manifold or engine head gasket problem.

- , Beavercreek, OR, USA

problem #9

Dec 152011

Montana 3.4 Liter

  • Automatic transmission
  • 168,000 miles

I was on a trip and my engine coolant light came on...stopped and found reservoir empty. Filled to specs and lit went out...however, susequently I was continually replenishing water to keep coolant lite off.

- , Beavercreek, OR, USA

problem #8

Jan 162009

Montana EX 3.4L V6

  • Automatic transmission
  • 114,000 miles

A D V E R T I S E M E N T S

My problem started 10/31/07. My temp gage went way up on the way home from work. I pulled off expressway and into jiffy lube to have coolant checked. They topped in off but said that it wasn't really low. The next couple of weeks the low coolant light keep going on/off. I kept checking coolant level but seemed ok. By end of Nov. I started getting no heat issues. I took it into repair shop who replaced water pump/thermostat/belt. Cost USD 330.00. Afterwards low coolant light still was coming on and I took it back 2 more times to check. Finally I was told it was probably a head gasget but they weren't sure. Now its Jan.08 and my car overheat light went on. I took it to 2nd repair shop who replace an auxiliary water pump. Cost. $300.00. I drove it home only for the low coolant light to go on again. I took it back again and they checked in said probably a head gasket but car passed 2 chemical test for bad head gaskets. So in disgust and frustration and took it to Pontiac dealer for inspection who told me it is lower manifold gasket and they want $1000.00 to fix. At this point I'm not sure what to do. Should I spend the money? Or use the Van as a trade in on a Toyota or Honda. No more GM cars for me.

- , Schaumburg, IL, USA

problem #7

Oct 232006

Montana 3.4L V6

  • Automatic transmission
  • 120,000 miles

This was down right horrible. Part of the problem was my wife was driving it, so wasn't paying attention, but when the gasket went, so did the fluid, and that caused MASSIVE overheating, ruined the engine.

THIS IS A MAJOR REPAIR, don't mess with it if you can help it.

- , Marana, AZ, USA

problem #6

Nov 262008

Montana 3.4L V6

  • Automatic transmission
  • 140,000 miles

This is the 2nd time, in 2 engines, that this has happened. I caught it early this time, so it was only a huge pain in the arse to get it fixed (I ended up doing it myself for only about a hundred bucks, but it took me forever. Everywhere I called gave me about a 800 dollar quote. It is a LOT of labor.

- , Marana, AZ, USA

problem #5

Mar 272007

(reported on)

Montana EX 3.4L V6

  • Automatic transmission
  • 85,000 miles

A D V E R T I S E M E N T S

Haven't fixed it yet, now uses 1 gallon antifreeze every 250 miles, lifters click as oil is contaminated, oil must be changed every 2-3 weeks. Needs a new gasket at the least, new engine would probably be best. NOT from GM, might try Jasper...

- , Bristol, VA, USA

problem #4

Mar 042008

Montana

  • Automatic transmission
  • 92,396 miles

This is the second time since we got the van (used) in 2003. the first tie it was covered by extended warranty - this time I'm paying & it hurts.

Will GM ever offer a 1,00,000 miles /10year warranty?

- , Mason, OH, USA

problem #3

Mar 272007

(reported on)

Montana EX 3.4L V6

  • Automatic transmission
  • 80,000 miles

GM should have recalled this, or at least covered the cost of repairs. It seems they are still using the same coolant and gaskets; Harley Earl is rolling over in his grave! I have 3 GM's now but will never own another one unless its made before 1975.

- , Bristol, VA, USA

problem #2

Jan 152007

(reported on)

Montana EXT 3.4L V6

  • Automatic transmission
  • 88,125 miles

Only problem we have had so far, but when I took it to the shop to be repaired he said he has replaced about 20 of these gaskets on Montana's in the last year. Problem should be dealt with by GM.

- , Didsbury, Alberta, Canada

problem #1

Dec 052006

(reported on)

Montana 3.2L

  • Automatic transmission
  • 175,000 miles

Ok hear we go. Intake manifold gasket went, transmission auto went, 4 fuel pumps, 2 wiring harnesses for fuel pump, blistered hood, fan control only works on high, remote mirrors quit, light in radio went out and can't see what station it's on, shall I go on I can but i'll stop here and add more complaints later.

- , Surrey, B. C, Canada

Not what you are looking for?