1999 Oldsmobile Alero Engine cooling Problems
- Complaints
- 85about this part
- Share
- 18%of 462 total for the year
- Median mileage
- 63,000miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 85 complaints about the engine cooling of the 1999 Oldsmobile Alero, 18% of the 462 complaints for this model year. Where a mileage was given, the median is 63,000 miles. 3 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“1999 olds Alero 70,000 miles and will have to spend over 700 replacing the intake manifold gasket. If we do not repair, will lose engine at over 2500 expense. We have talked to shops and read internet issues predominant on this same issue. Gm should do a recall on this vehicle due to so many complaints on this issue.”
NHTSA complaint #10178646, filed 2007-01, 70,000 miles“The Oldsmobile Alero is a pile of crap. Since I have had it I have replaced almost everything in the front end. My catalytic converter went out at 70,000 miles, I had a warranty and they didn't fix it. My anti-lock brakes and traction control went out and my cruise control switch hasn't worked since about 60,000 miles. I'm just waiting for the day this car just bursts into flames.”
NHTSA complaint #10053252, filed 2004-01, 60,000 miles“Car began to overheat two days ago. Intake manifold gasket replaced a year ago. Dealership stated the intake manifold needs to be replaced again. We also found out that we may have a blown head gasket and possibly a cracked engine--which means a new motor. Car has 80,000 miles on it and has been very well taken care of. We are devastated as this is our daughter's car and she is about to be a freshman in college. The car broke down on her while traveling down an interstate-at night.”
NHTSA complaint #10233467, filed 2008-07, 80,000 miles“Automatic transmission will not shift into 3rd or 4th gear, anymore. Roars loudly rather than shifts. When I take my foot off the accelerator at 30+ MPH car acts like cruise control is on - decelerates extremely slow. Rpms stay at 2200+ at 35 MPH. Also now a little higher on temperature gauge.”
NHTSA complaint #10010237, filed 2003-03, 65,950 miles“I have a 1999 Oldsmobile Alero with a 3.4l v6 engine that leaks coolant from the intake manifold gaskets. My dealer is jim muir Oldsmobile, who put me in contact with GM customer service. They claim no knowledge of the problem. According to the internet, there are thousands of vehicles with the problem. My father, who works at GM says that at least seven people he knows in his office have had repairs done. Gm needs to acknowledge the issue and start fixing them.”
NHTSA complaint #10005210, filed 2003-02, 79,500 milesRelated service bulletins
- 10246631Sep 1, 2013Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
Engine cooling: other model years
Other parts of the 1999 Oldsmobile Alero
121 complaintsElectrical system
89 complaintsVisibility (wipers, defrost, mirrors)
56 complaintsSuspension
46 complaintsExterior lighting
43 complaintsTransmission and drivetrain
34 complaintsFuel system
32 complaintsSteering
30 complaintsBody and structure
29 complaintsAir bags
14 complaintsVehicle speed control
14 complaintsSeat belts
11 complaints
← All problems reported for the 1999 Oldsmobile Alero
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