03 mountaineer severe misfiring
#1
03 mountaineer severe misfiring
4.6l v8 ....165,Xxx miles 8 new coils 8 new spark plugs not cats no o2 sensors runs horrible takes like 5 seconds to get from 1,000 rpm to 5 ,000...it back fires n misses alot
Once it hits 4000/5000. Rpm it goes fast....i need help
Once it hits 4000/5000. Rpm it goes fast....i need help
#2
Did you just fill up with gas before this started?
If you can't get a fuel filter , you could remove the old one and dump out what is inside and see what comes out, water, dirt ? Empty it in the opposite direction of the arrow , or the way fuel normally goes through it. Look for water or dirt.
If you can't get a fuel filter , you could remove the old one and dump out what is inside and see what comes out, water, dirt ? Empty it in the opposite direction of the arrow , or the way fuel normally goes through it. Look for water or dirt.
#6
With all those issues going on at once there should be a check engine light coming on soon. Get the codes if any presents & if you have a small scanner start by checking your long fuel trim & short fuel trim to get an idea of a vacuum leak.
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sully4200
Ford F-250 & Ford F-350
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01-05-2020 11:33 PM