Which parts fail
Components named in complaints (fuel pump, injectors, fuel tank, hybrid and EV propulsion).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 1998 Chevrolet Blazer owners, lightly cleaned up (personal details are redacted by NHTSA).
Tl contact owns a 1998 Chevrolet Blazer. The contact stated that while driving at approximately 30 MPH, the vehicle stalled without warning. The vehicle was taken to an independent mechanic where it was diagnosed that the spider fuel injection system needed to be replaced. The vehicle was repaired. In addition, the contact stated that while driving at unknown speeds, a pedestrian observed that there was a substance leaking from the vehicle. The contact discovered that there was a fuel leak. The vehicle was taken back to an independent mechanic, who confirmed that the fuel tank and fuel pump needed to be replaced. The vehicle was repaired however, the failure recurred. The vehicle was taken back to the independent mechanic, who stated that an unknown wire in the fuel pump needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. …
1. Driver and passenger seat recliner levers have broken over last few yrs, drivers side replaced 3 times, I had to pay 100. Deductible to fix each time. 2. Fuel guage indicator showed fuel tank 1/'2 full, no gas in the tank,car stopped in a dark street in an unsafe part of town, had to pay $100. Deductible to fix, no warning lights to show gas empty, car just suddenly stopped. 3.rear trunk latch would not work, had to pay deductible for dealer to fix. 4. Windshiield wiper mechanism stopped working, dealer replaced after we paid deductible. 5. Currently there is a rubbing noise from the brake pedal when pedal depressed, car no longer under extended warranty, was brought to dealer's attn sev times before warrnty expired, dealer mech could find no problm.
My wife was in danger driving the truck when she brought it to another route (another shop), which was hutchens Chevrolet. They told my wife and gave her the paper work stating that, the truck was unsafe and she could have been in danger if continued driving it. When he was told of the brake problems, (the car dealership owner) he instructed my wife to take it to his own auto repair shop, when my wife got the truck back, it was in the same state not everything was fixed. The work was completed at hutchens. The work had to have cost about $378.00. And there are more troubles with the truck, I see signs of rust and corrosion, there are vibrations when the vehicle is in excess of 60 miles.
The fuel injectors leaked onto the main wiring harness inside the engine. All of the wires melted. Three different mechanics confirmed that this should never have happened and could have caused a fire. I was refered to general motors. Estimated repairs for $1600.00 include replacement of the wiring harness, fuel injectors, fuel regulator kit, fuel body kit and upper intake gasket. GM has agreed to pay 50% of the bill. Since the vehicle has only 42,000 miles, has been maintained properly with oil changes and tune ups, I feel that GM is responsible for the total amount.
1998 Chevrolet Blazer, lt model instrument panel cluster suddenly lost readings on fuel gauge, temperature gauge, and shift selection. Before this happened, the rear window relay stopped working and so did the first speed of the rear windshield wiper. Had vehicle diagnosed and replaced instrument panel cluster. This did not solve problem. Took vehicle for another diagnosis and found computer and wiring harness to be OK. All grounds were checked. Vehicle operates but without a fuel gauge, and temperature gauge and most importantly shift selector.
Truck immediately stalled while traveling highway speeds 65-75 MPH due to the fuel pump failing. The truck was put in the shop two times before a diagnosis was made. Consumer was appalled that there was no warning device to acknowledge to the owner that fuel pump failed.
Strong gas smell on and off since August 2005. Looked over by mechanic - was told I have a internal gas leak - and that I was driving a "fire hazard". Gas leaking in engine - small cup in area of engine - filled with gasoline.
Consumer smelled fuel on the outside of the vehicle and on the inside of the garage. Fuel injection system was leaking fuel into the wiring harness and the main computer chip. This could result in an engine fire.
Vehicle: 1998 Chevy Blazer 4dr 4x4 4.3l Vortec v6 events leading up to failure: normal driving conditions failure(s): there are two primary concerns with this vehicle: 1) fuel gauge does not work, it will report complete full and when varying amounts of fuel the fuel gauge bounces around(usually between half and full, but sometimes between e and full) I am forced to use trip odometer and approximate fuel economy to determine tank level. I have heard several to many anecdotal stories of other Chevy vehicles experiencing the same symptoms. 2) the windshield wipers work sporadically. Currently when operating in 'intermittent' mode, the windshield wipers will begin to operate in continuous, regular speed and will not turn off when switch turned to 'off' position. Situation will occasionally correct itself after several minutes. …
Second set tires worn out at 39000 miles due to unidentified frt sus.problem.due to unusual amount of dealer verified concerns and past title history,even though most occured before factory w/added gmpp all attemts to have local GM dealers repair any of the problems acknowlaged, have been refused at presant time car sits in my driveway and we are using a rental paid for by me. The dealers,and factory have passified me through 3/36 coverage and made me think some conserns were not valid,because I was forced to drive vehc.all complaints have been duplicated and varified,documented by many GM techs. …
Fuel System complaints in other Blazer years
Frequently asked questions
How common are fuel system problems on the 1998 Chevrolet Blazer?
NHTSA has 29 complaints about the fuel & propulsion system of the 1998 Chevrolet Blazer, 4% of the model year's 716 complaints. The component named most often is storage › tank assembly (7 mentions).
Is there a recall for 1998 Chevrolet Blazer fuel system problems?
No. NHTSA lists no fuel & propulsion system recall for the 1998 Chevrolet Blazer, though it has 3 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 1998 Chevrolet Blazer fuel system problems start?
Half of the complaints with a recorded mileage happened before about 79,000 miles.
Is it dangerous?
Owners linked 0 crashes, 1 fire and 0 injuries to fuel & propulsion system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.