1999 GMC S15 4X4 MAKES NOISES, TRUCK SHAKES, SLOWS DOWN

1999 GMC S15
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ONTARIOGUY111
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1999 GMC S15 All Wheel Drive Automatic 115000 miles

BOUGHT A JIMMY THAT'S BEEN SITTING FOR A YEAR. HAD TO REPLACE THE VACUUM LINES FOR THE ACTUATOR, WORKED OK THE FIRST DAY. DAY 2, WAS NOT WORKING AGAIN. CHANGED ANOTHER VACUUM LINE, AND WHEN I PUT THE TRUCK IN 4H, THE WHOLE FRONT END WAS MAKING A GRINDING NOISE, STEERING ERRATIC, AND TRUCK SEAMS LIKE SOMETHING WANTS TO PREVENT IT FROM MOVING, SWITCHED BACK TO 2H, EVERYTHING NORMAL, BUT WHEN I TRY 4 WHEEL DRIVE THE PROBLEM COMES BACK. ANY CLUE? THANKS
Feb 20, 2009 at 9:17 PM
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JACOBANDNICKOLAS
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Make sure the fluid in the front differential is full and clean. Also, check u joints and cv joints. Finally, you may need to remove the hubs and clean and regrease them.
Jul 1, 2009 at 7:17 PM