1997 Chevrolet Blazer electrical system problems

“TL* THE CONTACT OWNS A 1997 CHEVROLET BLAZER. WHILE DRIVING AT AN UNKNOWN SPEED, THE ABS WARNING LIGHT ILLUMINATED AND THE FRONT BRAKES LOCKED UP INTERMITTENTLY. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE ABS PUMP AND ELECTRONIC CONTROL MODULE NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 79,300.”

“TL* THE CONTACT OWNS A 1997 CHEVROLET BLAZER. THE CONTACT STATED THAT WHILE DRIVING OVER A BUMP IN THE ROAD, THE INSTRUMENT CLUSTER LIGHTS SUDDENLY FLICKERED AND DIMMED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 200,000.”

“97 BLAZER WITH ORIGINAL LOW MILES HAD ENGINE STOP BOTH ON AND OFF THE HIGHWAY SEVERAL TIMES BUT IT WOULD START BACK UP. IN JAN WHILE DRIVING DOWN THE HIGHWAY THE SERVICE ENGINE LIGHT CAME ON AND RPMS WENT UP. WE PULLED OFF AND FOUND THE TRANSMISSION WAS STUCK IN 3'RD GEAR. ALSO KEY WOULD NOT RELEASE TO REMOVE. ERRORS CAME UP P1860 P0785 AND P740 THAT REFER TO TRANSMISSION. THE PROBLEM WAS NOT TRANSMISSION BUT IGNITION SWITCH CONTACT BLOCK COMMONLY CALLED THE IGNITION SWITCH, IT IS THE CONTACT SECTION AND NOT THE KEY OR LOCK CYLINDER. THIS IGNITION SWITCH HAD ALREADY BEEN REPLACED ONCE. GM HAS A SERVICE BULLETIN #17006264 ON THE IGNITION SWITCH AND THIS APPEARS TO BE A BIG PROBLEM ACROSS MANY YEARS AND MODELS BUT NO RECALL WAS ISSUED. AN IGNITION SWITCH PROBLEM CAN CAUSE ENGINE TO DIE, LIGHTS TO GO OUT AND OTHER PROBLEMS BUT THE CONTACT FOR THE TRANSMISSION POWER SEEMS TO BE A COMMON FAILURE POINT. I REPLACED THE IGNITION SWITCH AND EVERYTHING WORKED FINE FOR ONE MONTH AND THEN THE PROBLEM RECURRED WITH ERRORS P1860 P0758 P0753 P0740 AND P0785. I TESTED THE IGNITION SWITCH POWER FROM RED/WHITE TO WHITE WIRE AND GOT NO POWER WHEN SWITCH WAS ON SO THE NEW SWITCH…”

“1997 CHEVROLET BLAZER. CONSUMER WRITES IN REGARDS TO VEHICLE ELECTRICAL PROBLEMS. *SMD THE CONSUMER STATED SHE HAD TO CONTINUOUSLY CHARGE THE BATTERY AND THE CLOCK LIGHT STAYED ON. *JB”

“I WAS GOING THROUGH A ROUNDABOUT AND PUT MY RIGHT TURNING SIGNAL ON AND THE VEHICLE SHUT OFF. I WAS ABLE TURN MY HAZARD LIGHTS ON AND PULL OVER. AFTER PUTTING IT IN PARK IT DID START. AFTER THAT I PARKED IT AT A GAS STATION TURNED IT OFF WENT TO LEAVE AND THE SUV WOULD NOT START. I TOOK THE STEERING COLUMN COVER OFF AND STARTING KNOCKING ON THINGS AND I WAS ABLE TO GET IT STARTED. I LATER FOUND THAT IT WAS A WIRING HARNESS THAT FAILED. IT WAS REPLACED AFTER THAT EVERYTHING RAN GREAT. *TR”

“I HAD AN ISSUE WHERE MY TRUCK DID NOT WANT TO START BUT THE ENGINE WOULD TURN SO I KNEW IT WAS NOT THE BATTERY BECAUSE MY HEADLIGHTS DID WORK. I THEN NOTICED MY INTERIOR DASHBOARD LIGHTS WERE NOT ON SO I FOUND THAT VERY STRANGE. AFTER SO MANY TIMES TRYING TO START MY TRUCK I NOTICED MY TRUCK WOULD ONLY TURN ON IF THE INTERIOR DASHBOARD LIGHTS WERE ON. ONE NIGHT AFTER WORK I WAS DRIVING ON ROUTE 83 IN ILLINOIS AND I WAS GOING TO MAKE A RIGHT TURN ON TO ROUTE 53 AND SUDDENLY MY VEHICLE JUST TURNED OFF COMPLETELY. LUCKILY I W,A ABLE TO PULL OVER AND RESTART VEHICLE. IT WAS AT MIDNIGHT, THERE WERE NO VEHICLES AT THE TIME AND I WAS NOT GOING AT HIGH SPEEDS. I DID SOME RESEARCH ON THE INTERNET AND I FOUND OUT THAT IT WAS A FAULTY IGNITION SWITCH. I HAD THE IGNITION SWITCH REPLACED AND MY VEHICLE WORKS PERFECTLY FINE NOW. *TR”