Other Category problem
1999 GMC Yukon Engine Size unknown Wheel Drive Type unknown Automatic 210000 miles
I HAVE A PINGING NOISE WHEN DRIVE UP HILL WHAT DOES THAT MEAN? AND WHY AM I KEEP GETTING LOW OIL IN MY CAR ALSO.
THANKS STEPHEN
Friday, January 11th, 2008 AT 9:35 PM
1 Reply
RASMATAZ
MECHANIC
75,992 POSTS
Check the ignition timing, the knock sensor might not be retarding the timing when its senses vibration/detonation/pinging/spark knock-the engine could be overheating or the octane you're using.