1998 Pontiac Montana Engine cooling Problems
- Complaints
- 13about this part
- Share
- 27%of 49 total for the year
- Median mileage
- 74,904miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 13 complaints about the engine cooling of the 1998 Pontiac Montana, 27% of the 49 complaints for this model year. Where a mileage was given, the median is 74,904 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I noticed I have been using a lot of antifreeze in the van but no leaks under it. I took it to the garage to change the thermostat and to have it checked out. They told me my head gaskets are bad and need to be replaced, when I took it to the dealer he said I needed a new radiator too! I have been looking on the web and found many consumers with the same complaint as mine. Why haven't these 1998 Pontiac Montana's been recalled?”
NHTSA complaint #10255620, filed 2009-01, 109,000 miles“A year ago,I puchased a previously owned 1998 Pontiac Montana transport van with approximately 58,000 miles on it. I am a certificated aircraft mechanic with over 10 yrs of experience. So, I am aware of potentional problems with used vehicles. I did not have any problems with this vehicle until 3 months ago. When I had a low coolant light come on. I immediatley checked the fluid level and it was low. I then, began to look for a reason for low coolant. I found the coolant leaking externally out the intake manifold area. …”
NHTSA complaint #10072588, filed 2004-05, 69,000 miles“On july 18, 2003 we took our 1998 Pontiac Montana (58,000 miles) to domaille buick-mazda-mitsubishi in rochester, minnesota for a 3,000-mile oil change prior to leaving for our summer vacation. On that day the mechanic informed us about evidence of a lower intake manifold gasket leak and the need for immediate repair. He advised us not to drive the vehicle for fear that the engine could seize up in the middle of major traffic. This costly problem, of which we are now acutely aware, is fairly common amongst this line of vehicle (chevy venture and olds silhouette). …”
NHTSA complaint #10057074, filed 2004-02, 58,000 miles“On july 18, 2003 we took our 1998 Pontiac Montana (58,000 miles) to domaille buick-mazda-mitsubishi in rochester, minnesota for a 3,000-mile oil change prior to leaving for our summer vacation. On that day the mechanic informed us about evidence of a lower intake manifold gasket leak and the need for immediate repair. Gm has a vehicle owner satisfaction program initiated in response to the problems noted with their intake manifold gasket. Gm redesigned the intake manifold gasket and replaced the gasket at no cost to the owners of 1999-2003 model cars. …”
NHTSA complaint #10047598, filed 2003-11, 58,000 miles“Currently running, but not for long. Low coolant light on lifters clanging. 75,000 mile now..... Running like crap. I see that there have been several complaints on this matter with major engine repairs. $$$$$$ when is GM going to recall???????”
NHTSA complaint #10068715, filed 2004-01, 75,000 milesRelated service bulletins
- 10246631Sep 1, 2013Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2006 | 2 | 5% |
| 2005 | 3 | 4% |
| 2004 | 3 | 8% |
| 2003 | 10 | 12% |
| 2002 | 24 | 19% |
| 2001 | 36 | 23% |
| 2000 | 69 | 30% |
| 1999 | 99 | 42% |
| 1998 | 13 | 27% |
| 1997 | 8 | 44% |
Other parts of the 1998 Pontiac Montana
5 complaintsBody and structure
5 complaintsBrakes
4 complaintsExterior lighting
4 complaintsTransmission and drivetrain
4 complaintsVisibility (wipers, defrost, mirrors)
4 complaintsAir bags
3 complaintsSeat belts
3 complaintsEngine
2 complaintsLatches, locks and linkages
2 complaintsSteering
2 complaintsSuspension
2 complaints
← All problems reported for the 1998 Pontiac Montana
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology