The oil cooling lines have been leaking for quite a long time, as a routine the oil level is checked often. After contacting a gm dealer's service dept they told me it is a very common problem with this blazer and with the truck no longer under warranty to contact the delivering dealership. Besides these hose assemblies are on back order I was told, which means it is a common problem and it may be a matter of time before oil fires may erupt if the line completely fails. After contacting the delivering dealership they will be glad to replace the hoses for $375, in which I would replace myself, but no parts available.
The worst 1999 GMC Blazer problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Engine1
- Seats1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Engine1
- Seats1
Recalls
No recalls on record for this model year.
Technical service bulletins for the 1999 GMC Blazer 16
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- This warranty administration bulletin provides information regarding the field action courtesy...
- This technical bulletin provides a procedure to reprogram the media disc player with the latest...
- Vehicle Recalls
- Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels
- Underbody Component Corrosion The following information may be helpful when addressing underbody component...
- Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
- Saab/hummer/gm: diagnostic tips/recommendations when power steering pump replacement is necessary....
- 4WD models with noise, vibration on dry pavement. eh
- Engine coolant leak at intake gasket. mj
- Information regarding rear roof perforation. yh
What 1999 GMC Blazer owners say
Most recent owner complaints, unedited.
The cause for fire may be due to faulty wiring or electrical short circuit under the seat.
Compare the 1999 GMC Blazer
Other model years
Questions about the 1999 GMC Blazer
Is the 1999 GMC Blazer reliable?
Owners have filed 2 complaints about the 1999 GMC Blazer, fewer than a typical Blazer model year.
What is the most common problem with the 1999 GMC Blazer?
Engine and cooling, with 1 complaint. Next is seats (1).
How many recalls does the 1999 GMC Blazer have?
No recalls on record.
VIN decoder
See the problems and recalls for an exact car
Buying a used 1999 GMC Blazer?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history