Question about 1999 GMC Suburban
Had the O2 sensors cleaned few wks ago. Cause figured that was the problem and was cause they were clogged.
But now past few days car doesn't sound right when driving. And when have the car in idle engine reves up/shakes/sputters once or twice. I was told could be head gasket by friend anybody got any other ideas or was my friend right.
HELLO: I WAS LOOKING AT ALL THE PROBLEMS FOLKS ARE HAVING AND I SAW YOURS AND I STOPPED DEAD IN MY TRACKS BECAUSE #1 I LOVE A CHALLENGES AND#2 I CANT BELIEVE SOME ONE WOULD CLEAN AN OX SENCER ! THEY CAN NOT BE CLEANED AND MY BIG QUESTION IS HOW IN THE WORLD DID IT GET SO DIRTY IT COULD BE THAT NOTICEABLE,THE ONLY THING THAT IS TO COME IN CONTACT WITH IT IS EXHAUST AT 1300 DEGREES? IF IT WAS THAT DIRTY THEIR IS MORE THAN EXHAUST ENTERING THE EXHAUST SYSTEM, YOUR FRIEND MAY BE RIGHT,BUT FIRST LETS TRY THIS. DOES IT BLOW WHITE SMOKE WHEN RUNNING?DO U HAVE TO PUT WATER IN IT NOW AND THEN?,ALSO HAVE SOMEONE DO A COMPRESSION TEST ON THE ENGINE AND CHECK THE SPARK PLUGS AT-THE SAME TIME TO SEE HOW THEY ARE BURNNING(SOMEONE WHO KNOWS WHAT TO LOOK FOR) YOUR LOCAL AUTO SUPPLY STORE HAS THE SPECS FOR YOUR ENGINE (COMPRESSION FOR THE CYLINDERS)IN REPAIR MANUALS FOR YOUR TRUCK,$15-20.IF YOUR TRUCK WAS RUN AT A LONG TIME AND GOT OVER HEATED TO A CRITICAL POINT MANY THINGS MAY NEED TO BE REPLACED SO IN THIS CASE START WITH THE BIG ONE FIRST, THE MOTOR! IF IT CHECKS OUT OK DO THE PROCESS OF ELIMINATION. PLUGS WIRES NEW OX SENSERS JUST TO MENTION A. WELL HOPE I GAVE U SOME HELP!, GOOD LUCK TO U.
Posted on Mar 03, 2009
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Posted on Jan 02, 2017
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