2006 5.4 missfire
11-25-2014, 12:43 AM
#1
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2006 5.4 missfire
Hi new here so be easy on me
I have a 06 supercrew 5.4 with roughly 97,000 miles on it
Recently I had missfire on cylinder 8 so I change the spark plug well two weeks later I get CEL and it threw up 6 codes
2-multi missfire
2-cylinder 6
2-cylinder 4
I check 6 and everything looked fine and I have checked 4
But the other night going to Walmart it started shaking bad then just died and it would start but as soon as you put it in drive it would drive really quick, so me and my brother pushed it into a parking spot go get our stuff we need and when we get back out it starts and stays running but running rough so I drive it home which is only like 3 miles and when I get home and get out there's a burinning smell from the back of the truck and I'm stumped on what it could be I'm thinking COP or injectors
But it's not a constant missfire mainly when it's cold
Any help would greally be appreciated
I have a 06 supercrew 5.4 with roughly 97,000 miles on it
Recently I had missfire on cylinder 8 so I change the spark plug well two weeks later I get CEL and it threw up 6 codes
2-multi missfire
2-cylinder 6
2-cylinder 4
I check 6 and everything looked fine and I have checked 4
But the other night going to Walmart it started shaking bad then just died and it would start but as soon as you put it in drive it would drive really quick, so me and my brother pushed it into a parking spot go get our stuff we need and when we get back out it starts and stays running but running rough so I drive it home which is only like 3 miles and when I get home and get out there's a burinning smell from the back of the truck and I'm stumped on what it could be I'm thinking COP or injectors
But it's not a constant missfire mainly when it's cold
Any help would greally be appreciated
Last edited by BSWF150; 11-25-2014 at 04:06 AM.
11-25-2014, 10:27 AM
#2
Senior Member
What ever you do in the way of a tune up do everything. i.e. all the cops/all the plugs. Cold start and run issues are always about bad connections in electrical components. Copper shrinks when cold and expands when hot making better connections.