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Leaking Coolant


pretty bad
Typical Repair Cost:
Average Mileage:
97,350 miles
Total Complaints:
4 complaints

Most Common Solutions:

  1. not sure (2 reports)
  2. change the lower intake manifold gasket (1 reports)
  3. replace radiator (1 reports)
2002 Pontiac Montana cooling system problems

cooling system problem

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2002 Pontiac Montana Owner Comments

problem #4

May 202013

Montana 3.4L V6

  • Automatic transmission
  • 113,172 miles


My granddaughter I am now raising has asthma... And I need it fixed ASAP.

- Kimberly K., Jasper, IN, USA

problem #3

Dec 172011

Montana 2D 3.4L V6

  • Automatic transmission
  • 100,000 miles

Many complaints on the web including a Canadian class action lawsuit. I am currently trying to push GM to step up for the repair. With the mileage I know it is an uphill battle, but the issue has been present for some time, and GM never notified us that there was any issue. So far, $70 to have GM agree the problem is the lower intake manifold gasket, which they have redesigned.

- frustrated montana, Libertyville, IL, USA

problem #2

Jun 082011

Montana Special Edition 3.4L V6

  • Automatic transmission
  • 145,000 miles

Van reaked of anti freeze. It never overheated but it needed coolant every week. Ended up replacing the radiator.

- Hazel D., Spring Creek, PA, USA

problem #1

Dec 102008


  • Automatic transmission
  • 31,069 miles

The car was leaking coolant, so I paid $2000 the first time to fix the problem only to find out the first mechanic did not replace the part. The second one charged me $600.00 and did the job.

- rcbc, Princeton, BC, canada

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