spark knock!
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Junior User
Joined: Dec 2006
Posts: 98
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spark knock!
hey i have a 1991 460 f250 and i started gettin spark knock using regular fuel about a month back so i upped it to premium thought that might help and it did it went away for awhile...and now its back it will run fine up to about 2600 2700 rpm then the knock will start up again and it will get really loud if i ever let it hit 3000. i do have 162,000k on her
so any ideas on whats causing it would be helpful thanks
oo and i checked one plug and it looks fine its brown with a touch of white
i haven't had time to check anymore plugs
so any ideas on whats causing it would be helpful thanks
oo and i checked one plug and it looks fine its brown with a touch of white
i haven't had time to check anymore plugs
Senior User
Joined: May 2007
Posts: 124
Likes: 0
From: NC
I'd say go ahead and change plugs wires cap and rotor just to be safe
http://dirtbike.off-road.com/dirtbik...6/332655/4.jpg
common ailments for spark plugs^
http://dirtbike.off-road.com/dirtbik...6/332655/4.jpg
common ailments for spark plugs^
