help. engine lugging/skipping

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guitarfreak235

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Ok so right after i completed my header/exhaust project i encountered a new problem :Frustrated: my truck lugs and seems to skip at about 40 when it shifts into 4th. it happens slightly when it first shifts into 3rd too. this doesnt happen at idle or at higher rpms. just when the engine is under load at lower rpms. its kinda violent and shakes the truck pretty good. just curious at what i should check for. is it possible that ive fried a spark plug wire? cuz its possible that theyve touched the headers but im not sure.... any help is appreciated.
 

bucket

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How long since a tune up? What kind of wires?
 

guitarfreak235

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Uh never really done a full tuneup just worked on things as I see them. Probably a good idea tho... What do you mean what wires? Idk what brand they are or what type I changed them a long time ago
 

Jims86

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burned wires on the headers?
 

guitarfreak235

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burned wires on the headers?

well i supposed it was possible. i didnt think they had the heat shields and plastic wire protectors on some of the wires for nothing. but i guess thats just for long term protection
 

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