1999 GMC Sierra 1500 problems

UNKNOWN OR OTHER

ABS Brakes cut out leaving you with little to no brakes. No warning light appears. This continues on and off over time. Then that ABS warning light came on. When the warning light was on, brakes worked just not ABS. Light would go out and back to the original issue. Took it in to dealership when the light remained on. They reset the light and told me every thing was fine. And charged me $$$. ABS Brake warning light can right back on. Had the manager drive it. Told me it was fine, brakes worked well. The ABS warning would go in and out. Removed the ABS fuse, so I could depend on being able to stop, without having to worry about the ABS cutting in and out for a few years. Watched for recalls, nothing appeared. Noticed on blogs, others were having the same issue. Took it to a great mechanic! Who verified there were no leaks in the brake lines, replaced one line that had been known to have issues on this type of truck and verified there were no air bubbles on the lines. Still same issue, then replaced the computer system for the ABS. No codes ever came up on the computer system that I can recall. Had more issues with the ABS. Would go to stop, (generally on a hill) then when it came to the final stopping, I had NO BRAKES, had to slam on the brakes to stop. ABS Brake warning lights never came on. My mechanic looked and looked and relooked into this. Found from others that blogged that they had similar issues, that one or both of the ABS Brake sensors were not responding evenly causing an issue. Changed out the sensor. All is good now. This issues could have put and my family in danger a number of times. I was blessed to avoid a few accidents by driving far enough behind people and or had an emergency line to pull into when unable to stop. Hope a recall comes soon for these issues to prevent someone from being killed. These took place from about 2015-fixed 2020. Email me with a report number and where I can upload info at a later date, I will do so.

NHTSA complaint #11434316 — an unverified report by a vehicle owner.

SERVICE BRAKES

ABS Brakes cut out leaving you with little to no brakes. No warning light appears. This continues on and off over time. Then that ABS warning light came on. When the warning light was on, brakes worked just not ABS. Light would go out and back to the original issue. Took it in to dealership when the light remained on. They reset the light and told me every thing was fine. And charged me $$$. ABS Brake warning light can right back on. Had the manager drive it. Told me it was fine, brakes worked well. The ABS warning would go in and out. Removed the ABS fuse, so I could depend on being able to stop, without having to worry about the ABS cutting in and out for a few years. Watched for recalls, nothing appeared. Noticed on blogs, others were having the same issue. Took it to a great mechanic! Who verified there were no leaks in the brake lines, replaced one line that had been known to have issues on this type of truck and verified there were no air bubbles on the lines. Still same issue, then replaced the computer system for the ABS. No codes ever came up on the computer system that I can recall. Had more issues with the ABS. Would go to stop, (generally on a hill) then when it came to the final stopping, I had NO BRAKES, had to slam on the brakes to stop. ABS Brake warning lights never came on. My mechanic looked and looked and relooked into this. Found from others that blogged that they had similar issues, that one or both of the ABS Brake sensors were not responding evenly causing an issue. Changed out the sensor. All is good now. This issues could have put and my family in danger a number of times. I was blessed to avoid a few accidents by driving far enough behind people and or had an emergency line to pull into when unable to stop. Hope a recall comes soon for these issues to prevent someone from being killed. These took place from about 2015-fixed 2020. Email me with a report number and where I can upload info at a later date, I will do so.

NHTSA complaint #11434316 — an unverified report by a vehicle owner.

SERVICE BRAKES

I WAS DRIVING HOME FROM WORK ON 421 IN EMINENCE, KY. I PUSHED THE BRAKE PEDAL & I HAD NO BRAKES RIGHT IN FRONT OF HARRY HILL PARK. GM & I ARE VERY LUCKY THAT NO ONE WAS KILLED YESTERDAY. THE BRAKE LINE CORRODED & LEAKED THE BRAKE FLUID, SO WHEN I PUSHED THE PEDAL, IT WENT RIGHT TO THE FLOOR. THE VEHICLE IS PRETTY CLEAN & AFTER CHECKING MANY BLOGS & YOUTUBE VIDEOS THIS IS A VERY COMMON PROBLEM ON GM TRUCKS. I CHECKED THE RECALLS ON THIS TRUCK & THE TAILGATE CABLE IS RECALLED FOR BREAKING UNDER LOAD DUE TO CORROSION; THIS COULD INJURE SOMEBODY, BUT NOT AS VITAL COMPARED TO THE BRAKING SYSTEM AS SOMEONE COULD DIE IN A HORRIBLE INCIDENT. I WOULD GREATLY APPRECIATE YOUR ATTENTION TO THIS SERIOUS MATTER. THANK YOU

NHTSA complaint #11204085 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

I GOT UNDER THE TRUCK TO CHANGE THE OIL THEN I NOTICED A CRACK IN THE FRAME WHERE THE CROSS MEMBER IS. CROSS MEMBER RUNS ACROSS FRAME SUPPORT

NHTSA complaint #11140440 — an unverified report by a vehicle owner.

STRUCTURE:BODY

I PURCHASED THIS TRUCK A FEW MONTHS AGO. WITHIN A WEEK I HAD A CO WORKER POINT OUT THE BED WAS LEANING TOWARD THE CAB. A FEW WEEKS LATER WE GOT UNDER THE TRUCK TO FIND OUT WHAT WAS GOING ON. WE NOTICED ALOT OF RUST. I LOOKED ON LINE TO SEE HOW TO FIX IT AND FOUND ALOT OF PEOPLE WERE DEALING WITH THE SAME ISSUE. I DECIDED TO GET SOME SHEET METAL AND WELD IT TO THE FRAME. I THEN ASKED MY BOSS WHO OWNS A WELDER IF HE COULD HELP ME WITH IT. HE SAID THERE WASN'T ANYTHING LEFT TO WELD TO. THEN THE TRUCK STARTED NOT GOING INTO PARK. AND TO START IT YOU'D HAVE TO START IT IN NEUTRAL AND IT WOULD NOT STAY IN PARK, IT WOULD ROLL AND THE EMERGENCY BRAKE NO LONGER WORKED. I THEN HAD MY PARENTS TO TAKE THE TRUCK TO A BODY SHOP TO SEE IF THEY COULD REPAIR IT. BOTH BODY SHOPS SAID IT WAS NOT REPAIRABLE THAT THE FRAME WAS RUSTED OUT AND NEEDED REPLACED. ONE SHOP SAID THAT THE PARKING ISSUE COULD BE FROM THE FRAME BENDING, BUT DID NOT KNOW WITHOUT GETTING INTO THAT. THEY ALSO TOLD THEM THAT THE TRUCK WAS UNSAFE TO BE ON THE ROAD. I FINANCED THIS TRUCK FOR $5500 AND NOW I'M PAYING PAYMENTS ON A TRUCK I CAN'T EVEN USE.

NHTSA complaint #11114941 — an unverified report by a vehicle owner.

SERVICE BRAKES

WHILE OPERATING THE VEHICLE AT APPROXIMATELY 45 MPH, I WAS APPROACHING AN INTERSECTION WHEN I APPLIED THE BRAKES TO SLOW THE VEHICLE. ONE OF THE REAR BRAKE LINES BURSTED CAUSING ME TO HAVE TO ABRUPTLY PUMP THE BRAKE PEDAL TO STOP THE VEHICLE. VERY DANGEROUS SITUATION AS A MARKED SHERIFF'S VEHICLE WITH ITS EMERGENCY LIGHTS AND SIREN ACTIVATED WAS TRAVELING AT A HIGH RATE OF SPEED ON THE INTERSECTING HIGHWAY THAT I WAS APPROACHING. THIS IS A KNOWN AND PREVALENT PROBLEM THAT EXISTS WITH GM TRUCKS AND GM IS WELL AWARE OF THE ISSUE BUT DENIES FAULTY PARTS.

NHTSA complaint #11074715 — an unverified report by a vehicle owner.

ENGINE

BRAKE CHECK ENGINE OIL CHANGE INDICATOR WILL NOT GO OFF

NHTSA complaint #11042621 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

I HAVE A 1999 GMC SIERRA 1500 Z71 WITH 107000 ON IT A FRAME CRACKED UNDER PASSENGERS DOOR AND AT REAR SHOCK MOUNT CALL GM TOLD ME TO BRING IT TO A DEALER FOR A FRAME INSPECTION TOLD ME FRAME IS ROTTED NOTHING THEY WOULD DO I THINK IT'S A SAFETY ISSUE SHOULDN'T ROT OUT HAD A 1997 CHEVY 1500 NEVER ANY RUST ON THAT TRUCK IT HAD 245000 MILES WHEN I SOLD IT .IF YOU NEED PICTURES OF THE ROT ON MY 1999 GMC SIERRA I WILL GET

NHTSA complaint #11032280 — an unverified report by a vehicle owner.

SERVICE BRAKES

TL* THE CONTACT OWNS A 1999 GMC SIERRA 1500. WHILE DRIVING APPROXIMATELY 30 MPH, THE BRAKE PEDAL TRAVELED TO THE FLOOR WHEN THE PEDAL WAS DEPRESSED. THE VEHICLE CAME TO A STOP AND THE CONTACT NOTICED FLUID LEAKING UNDERNEATH THE VEHICLE. THE CONTACT HAD THE VEHICLE TOWED TO QUALITY CHEVROLET (1292 ROUTE 9 SOUTH OLD BRIDGE, NJ, 08857; 732-316-2600) WHERE IT WAS DIAGNOSED THAT THE BRAKE LINE EXPLODED AND AREAS OF THE BRAKING SYSTEM WERE RUSTED, WHICH CAUSED THE BRAKING SYSTEM TO FAIL. THE VEHICLE'S BRAKING SYSTEM NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 216,000.

NHTSA complaint #11025252 — an unverified report by a vehicle owner.

SERVICE BRAKES

DURING NORMAL STRAIGHT STOP FROM 50 MPH ON RURAL COUNTY ROAD, INTERSECTION WITH 70 MPH CROSSING 4-LANE DIVIDED STATE HIGHWAY, PEDAL WENT TO FLOOR AND BRAKING ABILITY WAS MINIMAL. EMERGENCY BRAKE NEEDED TO COMPLETE THE STOP BEFORE ENTERING CROSSING HIGH-SPEED TRAFFIC. UPON INSPECTION, DISCOVERED BRAKE LINE RUPTURED DUE TO RUST WITH MASSIVE INSTANTANEOUS FLUID LOSS.

NHTSA complaint #11021475 — an unverified report by a vehicle owner.

PARKING BRAKE

TL* THE CONTACT OWNS A 1999 GMC SIERRA 1500. WHILE STOPPING THE VEHICLE, THE CONTACT HEARD AN ABNORMAL CLUNKING NOISE. THE PARKING BRAKE WAS ENGAGED, BUT IT FAILED TO RESPOND AND CAUSED THE VEHICLE TO MOVE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC. THE LOCAL DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS NOT NOTIFIED OF THE ISSUE. THE FAILURE MILEAGE WAS 204,206.

NHTSA complaint #11020081 — an unverified report by a vehicle owner.

SERVICE BRAKES

TL* THE CONTACT OWNS A 1999 GMC SIERRA 1500. WHILE STOPPING THE VEHICLE, THE CONTACT HEARD AN ABNORMAL CLUNKING NOISE. THE PARKING BRAKE WAS ENGAGED, BUT IT FAILED TO RESPOND AND CAUSED THE VEHICLE TO MOVE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC. THE LOCAL DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS NOT NOTIFIED OF THE ISSUE. THE FAILURE MILEAGE WAS 204,206.

NHTSA complaint #11020081 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

WHILE DRIVING ON A STREET IN MY NEIGHBORHOOD, WE FOUND THAT THE IGNITION SWITCH COULD BE MOVED TO THE "OFF" OR "ACCESSORY" POSITION WHILE DRIVING. NOTICED THAT STEERING, BRAKES, AND OTHER COMPONENTS BECAME DISABLED. LUCKILY WE WERE ABLE TO SAFELY MOVE THE VEHICLE TO THE ROADSIDE AND ASSESS THE SITUATION. A PROBLEM LIKE THIS COULD RESULT IN CATASTROPHIC SYSTEM FAILURE IN THE VEHICLE WHILE DRIVING AT HIGH SPEEDS, AND COULD CAUSE POSSIBLE DEATH IF WE WEREN'T AWARE OF THIS PROBLEM. PLEASE INFORM OTHER VEHICLE OWNERS OF THIS POSSIBLE DANGEROUS ISSUE.

NHTSA complaint #11001376 — an unverified report by a vehicle owner.

SERVICE BRAKES

WHEN COMING TO A STOPLIGHT, I APPLY THE BRAKES AND THE PEDAL GOES DOWN MORE THAN IT SHOULD, BUT I GET STOPPED. WHILE HOLDING THE BRAKE AND WAITING FOR THE LIGHT TO CHANGE THE BRAKE PEDAL GOES SLOWLY TO THE FLOOR. NEXT, I PULL INTO A PARKING LOT AND GET STOPPED. I PUT THE TRUCK IN PARK AN LOOK UNDER THE HOOD AT THE BRAKE MASTER CYLINDER, NO FLUID LEAKS, THEN I C LOOK AT EACH WHEEL, NO FLUID LEAKS. I GET TURNED AROUND AND HEAD HOME BECAUSE I KNOW SOMETHING IS WRONG. DRIVING HOME THE BRAKE PEDAL IS SOFT. I'M SOON HOME AND I PARK THE TRUCK BUT WITH THE MOTOR STILL RUNNING, I SLOWLY DEPRESS THE BRAKE PEDAL, IT GOES SLOWLY TO THE FLOOR, NEXT TIME I DEPRESS THE BRAKE PEDAL IT GOES TO THE FLOOR IN A SPLIT SECOND. I GET OUT AND INSPECT UNDER THE TRUCK. I SEE BRAKE FLUID LEAKING FROM THE LINES RUNNING DOWN THE FRAME RIGHT UNDER THE DRIVERS DOOR.

NHTSA complaint #10992038 — an unverified report by a vehicle owner.

SUSPENSION

TL* THE CONTACT OWNS A 1999 GMC SIERRA 1500. THE CONTACT STATED THAT THE VEHICLE MADE AN ABNORMAL GRINDING SOUND FROM THE REAR END AFTER HITTING A POTHOLE. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE REAR DIFFERENTIAL WAS DEFECTIVE AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED, BUT THE FAILURE RECURRED. THE REAR DIFFERENTIAL WAS REPLACED FOUR TIMES. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 186,000.

NHTSA complaint #10959740 — an unverified report by a vehicle owner.

STRUCTURE:BODY

BRAKE LINES RUSTED , ABS FAILURE ,GAS LINES RUSTED, TRANS COOLING LINES RUSTED. THESE WERE ALL FAILURES THAT NEEDED REPLACEMENT THROUGH THE YEARS I HAVE OWNED IT. NOW FRAME RUSTED AND CRACKED . TRUCK BASICALLY SHOT .

NHTSA complaint #10945232 — an unverified report by a vehicle owner.

SERVICE BRAKES

BRAKE LINES RUSTED , ABS FAILURE ,GAS LINES RUSTED, TRANS COOLING LINES RUSTED. THESE WERE ALL FAILURES THAT NEEDED REPLACEMENT THROUGH THE YEARS I HAVE OWNED IT. NOW FRAME RUSTED AND CRACKED . TRUCK BASICALLY SHOT .

NHTSA complaint #10945232 — an unverified report by a vehicle owner.

STRUCTURE:BODY

FRAME CROSS MEMBER BEHIND THE CAB IS RUSTED THROUGH. I HAVE OWNED VEHICLES IN "SALT" STATES AND NOT HAD THE FRAME RUST OUT. THIS SHOULD NOT BE CONSIDERED A "WEAR ITEM". THIS CAN LEAD TO A FAILURE WHEREBY THE FUEL TANK FALLS DOWN LEADING TO A HIGH RISK OF FIRE. THIS WAS FOUND DURING A REPLACEMENT OF THE BRAKE LINE (3RD SET) ASSEMBLY AND REMOVAL OF THE TRUCK BED.

NHTSA complaint #10918981 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

TL* THE CONTACT OWNS A 1999 GMC SIERRA 1500. WHILE THE VEHICLE WAS IN NEUTRAL, THE INSTRUMENT PANEL GAUGES FAILED AND FLICKERED WITHOUT WARNING. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS UNKNOWN.

NHTSA complaint #10913725 — an unverified report by a vehicle owner.

SERVICE BRAKES

BRAKE LINES LEAKING FROM CORROSION LEADING TO NO BRAKING

NHTSA complaint #10897720 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

CHECK ENGINE LIGHT ALWAYS ON,MECHANIC CANNOT TURN OFF..ALSO WHILE DRIVING THE ABS WARNING LIGHT COMES ON FOR NO REASON WHILE DRIVING..

NHTSA complaint #10884769 — an unverified report by a vehicle owner.