1999 Pontiac Sunfire Transmission and drivetrain Problems
- Complaints
- 8about this part
- Share
- 9%of 93 total for the year
- Median mileage
- 56,222miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 8 complaints about the transmission and drivetrain of the 1999 Pontiac Sunfire, 9% of the 93 complaints for this model year. Where a mileage was given, the median is 56,222 miles. 1 of these say a crash was involved, according to the filers.
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.
“We have a 1999 Pontiac Sunfire with 32445 miles on it. The transmission, 3rd & 4th gears, have gone bad. I would expect to recieve more mileage than this out of a properly serviced transmission. This occurred within 220 miles of having the fluid replaced in hte transmission.”
NHTSA complaint #10067654, filed 2004-04, 32,445 miles“Vehicle jumped from park to reverse while engine was idling. Vehicle was parked on level ground. Damage was estimated at three thousand dollars, driver sustained injuries to arm and shoulder. Please provide further details.”
NHTSA complaint #8001622, filed 2002-01“When driving vehicle and odometer speed is 70mph, it will then drop down to 65mph on its own, while still traveling 70mph. Have taken vehicle to dealer and was informed the busings were slipping.”
NHTSA complaint #8010376, filed 2002-05“Ever since we got the car the odometer scrambles and goes off and on. Usualy in cold or hot weather. When it comes on it goes back to the right mileage.”
NHTSA complaint #765519, filed 2002-08“While traveling and making a turn vehicle stalled without indicaton. Also, while in reverse vehicle will not back up. This is intermittent. Dealer has been notified.”
NHTSA complaint #854670, filed 2000-02Related service bulletins
- 10115081Nov 2, 2015This Preliminary Information communication provides information to the technician about cooler line fittings that come with the 4T65E General Motors remanufactured transmission…
- 10023942Oct 1, 2007Information on 4t40-e (mn4) and 4t45-e (mn5) front wheel drive automatic transmission valve body reconditioning, dtc p0741, p0742, p0751, p0752, p0756, p0757, p1811, harsh…
- 10017096Oct 24, 2005Vehicle will not move in either direction. Transmission may show over full. P90 4t40e 4t45e no movement drive or reverse. Converter may be empty of fluid.
- 10017086Oct 24, 20054t40e or 4t45e will not shift no diagnostic trouble codes.
Transmission and drivetrain: other model years
Other parts of the 1999 Pontiac Sunfire
21 complaintsEngine cooling
17 complaintsBrakes
13 complaintsAir bags
10 complaintsOther or unknown
7 complaintsExterior lighting
6 complaintsSteering
6 complaintsVisibility (wipers, defrost, mirrors)
6 complaintsSuspension
5 complaintsSeats
4 complaintsBody and structure
4 complaintsInterior lighting
2 complaints
← All problems reported for the 1999 Pontiac Sunfire
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