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Other or unknownPart report

1999 Pontiac Montana Other or unknown Problems

Complaints
6about this part
Share
3%of 235 total for the year
Median mileage
57,491miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 6 complaints about the other or unknown of the 1999 Pontiac Montana, 3% of the 235 complaints for this model year. Where a mileage was given, the median is 57,491 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.

“Engine. Poor gasket/coolant design allowed coolant to leak into engine causing cam bearings to sieze causing my cam shaft to break. Vehicle is still 1,500km away at a dealership who is currently replacing with new engine. My cost= engine+labour+extra week holiday for being stranded+plane ticket to return home {and to fly back to pick it up once everything is repaired} I checked the internet on a hunch and was absolutly amazed at the extreamly high amound of people having the same problem. …”

NHTSA complaint #10071343, filed 2004-01, 70,000 miles

“Engine: intake manifold gasket leaking. I followed thru with a complaint to the bbb and to Pontiac's 800 number. I was told I needed to have the van diagnosed at a GM dealer before anything could be done by Pontiac. My dealer quality Pontiac in cocoa, florida looked at the van and agreed the intake manifold gasket was leaking (november 2002). Quality informed me it would be about $500 to repair. A phone call to Pontiac's 800 # put pressure on the dealer and they performed the work for $100 plus extra for a coolant flush. The total was around $180. …”

NHTSA complaint #10069738, filed 2004-01, 35,000 miles

“Intake manifold leaking coolant into the engine oil on my 3.4 liter engine. After complaining to Pontiac & the bbb, GM offered to pay 50% of the repair cost. Faulty oxygen sensor & leaking fuel pressure regulator oh december 16, 2003. Since original complaint, keyless remote failed on 7/15/03 & seat belt pretensioner failed causing airbag light to go on, july 28, 2003”

NHTSA complaint #10069801, filed 2004-01, 44,982 miles

“Heat & engine low coolant light on;heater blower inop at some speeds(replace intake gasket and blower fan resistor paint paint bubbled on hood transmission harsh shifting (faulty pressure control solenoid) wheel noise in bearing (replace wheel hub assembly) brakes a.b.s light always comes on(loose wires;disconnected wire faulty sensor)ongoing problem not fixed(rear wiper motor;passenger mirror keeps shifting;no heat control in position half window half floor”

NHTSA complaint #10071324, filed 2004-01, 124,000 miles

“Purchaused used (6 months old) have now owned auto for 2 years. At 38000 miles transmission starting shifting harsh at times, had to replace transmission. Engine has started acting as if it is going to stall for no apparent reason. Radio has been replaced 3-4 time, due to garbbled display. Most recently however, I had door locks repaired, and was told that the wires to the locks were damaged due to the water intrusion caused by the air conditioning leak into the auto instead of outside the auto.”

NHTSA complaint #751373, filed 2001-08

Other or unknown: other model years

YearComplaintsShare of year
200625%
200579%
200425%
200334%
200243%
200121%
2000115%
199963%
199812%
199716%

Other parts of the 1999 Pontiac Montana

Engine cooling
99 complaints
Air bags
32 complaints
Transmission and drivetrain
32 complaints
Brakes
24 complaints
Body and structure
22 complaints
Electrical system
14 complaints
Latches, locks and linkages
12 complaints
Visibility (wipers, defrost, mirrors)
12 complaints
Equipment
10 complaints
Fuel system
10 complaints
Exterior lighting
8 complaints
Seat belts
8 complaints

← All problems reported for the 1999 Pontiac Montana

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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