My yukon is getting a code that says random multiple misfire how do you fix this? I had the spark plugs changed,replaced the distributor and then replaced the fuel pump and now it is getting the random code but it was not showing the code prior to the tune up it was however driving rough and stalling
my yukon is getting a code that sys random multiple misfire on 1999 GMC Yukon
by Visitor in Rockford, IL on April 11, 2011
ANSWER by Visitor , April 26, 2011
BAD PLUG WIRES
ANSWER by furiousjiefu , September 07, 2012
I am having the same problem with my 96 gmc Yukon. Auto Shop says misfire error code. It seems to want to die sometimes when I slowly release the brake at stop signs. It rhythmically lugs forward slowly ,when you give it gas it goes, but seems to run rough. Sometimes I drive it and no problems at stop signs.... I cleaned out the throttle body... Any suggestions? Thanx in advance
ANSWER by islandgirl71 , February 28, 2012
You should replace the plug wires and spark plugs. It makes a huge difference...
ANSWER by overbys , April 11, 2011
diagnose, diagnose, diagnose instead of throwing parts at a problem. how about a plug wire or coil?