2004 GMC ENVOY XUV Engine Problems

2004 ENVOY XUV, IMPECCABLY MAINTAINED, CAR WAS PARKED IN MY DRIVE WAY AND I STARTED IT TO GO TO THE STORE AND IT STARTED CHUGGING AND THEN ALMOST DIED, BUT THEN WENT BACK TO NORMAL BUT THE SERVICE ENGINE SOON AND REDUCED ENGINE POWER LIGHTS ILLUMINATED ON DASH.TURNED OFF ENGINE. RESTARTED, AND THE SERVICE ENGINE SOON LIGHT WAS STILL THERE SO MY HUSBAND HOOKED UP HIS CODE READER AND IT HAD THE CODE P1680 ( THROTTLE BODY POSTIONING CENSOR.) AND THIS ISN'T THE FIRST TIME IT'S DONE IT BUT THE ENGINE LIGHT HAS ALWAYS JUST FLASHED IT WOULD NEVER STAY ON SO WE COULD READ THE CODE. BUT IN ORDER TO FIX THIS YOU HAVE TO BUY A WHOLE NEW THROTTLE BODY HOUSING BECAUSE THE CENSOR IS BUILT INTO IT. AND IT ISN'T CHEAP. AT AUTOZONE IT IS $280.00. AND YOU HAVE TO ALSO BUY A GASKET FOR IT AND...

TL* THE CONTACT OWNS A 2004 GMC ENVOY XUV. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE VEHICLE STALLED SEVERAL TIMES AS THE LIGHTS ON THE INSTRUMENTAL PANEL ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC. THE TECHNICIAN REPLACED THE 02 SENSOR HOWEVER, THE FAILURE WAS NOT CORRECTED AND THE VEHICLE CONTINUED TO STALL WITHOUT WARNING. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 80,000.

TL* THE CONTACT OWNS A 2004 GMC ENVOY XUV. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE VEHICLE SUDDENLY STALLED. AFTER RESTARTING THE ENGINE, THE VEHICLE WOULD OPERATE AS NORMAL. THE CONTACT ALSO STATED THAT AFTER TURNING THE ENGINE OFF AND REMOVING THE IGNITION KEY, THE INSTRUMENT PANEL AND GAUGES WOULD CONTINUE TO ILLUMINATE CAUSING THE BATTERY POWER TO DRAIN. THE VEHICLE WAS TAKEN TO THE DEALER, WHO DIAGNOSED THAT THE IGNITION SWITCH FAILED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 24,000. UPDATED 9/12/14*CN THE CONSUMER STATED THE REAR WINDOWS AND GATE FAILED. THE IGNITION FAILURE WAS A DAILY PROBLEM. THE IGNITION STAYS ON WHICH RESULTS IN BATTERY FAILURE. THERE IS NO SAFETY RELEASE FOR THE REAR GATE. UPDATED 1/27/2015 *JS

MY CAR OVERHEATED ON A NORMAL DAY, ABOUT 80 DEGREES OUTSIDE. I CHECKED AND REPLACED A DEFECTIVE THERMOSTAT, AND STARTED THE ENGINE ONLY TO FIND IT MISFIRING BADLY FOR THE FIRST TIME. I GAINED ADVISE FROM A LOCAL AUTO STORE AND CHANGED MY SPARK PLUGS. WHEN I PULLED OUT THE OLD ONES, I FOUND THREE OF THE SIX COVERED IN OIL. UPON FURTHER RESEARCH, I WAS INSTRUCTED TO REMOVE THE MANIFOLD AND REPLACE THE TUBE SEALS BUT THE PLASTIC MANIFOLD COVER WOULD NOT COME OFF AS INDICATED IN A GM MECHANICS MANUAL. THIS IS THE LAST OF SEVERAL PROBLEMS I'VE HAD WITH THE 2004 GMC ENVOY XUV 2WD INLINE 6. I SEE MANY COMPLAINTS ON THE OILY SPARK PLUG ISSUE AND CRACKED MANIFOLD BUT NO TSBS. LAST YEAR, I HAD MY A/C COMPRESSOR GO OUT AND REPLACED, MY GAS TANK LEAK AND REPLACED UNDER A 'SPECIAL WARRANTY', A DIAGNOSIS THAT...

EXHAUST MANIFOLD CRACKED. GM HAS A SPECIAL EXTENDED WARRENTY ON MODEL YEARS 2008-2009 ONLY. YET THEY ARE THE SAME MANIFOLD AND SAME ENGINE ON ALL MODEL YEARS. THERE ARE 100'S OF REPORTS OF CRACKED MANIFOLDS ONLINE, WITH ALL MODEL YEARS. *TR