Cylinder 5 misfire

[992door]

It only does it at 70+ mph. I have replaced the i replaced the plug wires and it still did it but it was running a little better. Today i replaced the spark plug and I will find out tomorrow on the way back home if that helped it if not what could it be

 

[Rollin Thunder]

engine bad. Replace with 572. Should fix your problem.

 

[992door]

how would that fix my problem it would cause more problems

 

[Rollin Thunder]

but you would have a 572 how could there ever be a problem when you have an engine as godly as that???

 

[Cdnguy]

the rest of the drivetrain might have issues tho.....

 

[Rollin Thunder]

he has the money.....

 

[Cdnguy]

ah! if we are spending his money then yeah he should get the 572.

 

[992door]

everyone is good at spending everyone else's money

 

[Cdnguy]

my ex was extremely good at spending mine!

 

[3-lot]

im made of money, im just unsure how to access it, somehow my wife knows though, and she never shares....
p.s. - 572R

 

[96ProCompTahoe]

572 sounds like a quick fix and if you nice i'll put it in mine first to make sure it runs good.

 

[992door]

that is fine with me that way you could put the supercharger on it and test it out

 

[knotty]

mine is foulin the #5 plug and i cant figure it out ! lookls like we are in the same boat !

 

[drowndindreams]

everyone is good at spending everyone else's money

amen to that

 

[jayman8200]

I have a 99 4 door lt, and mine was misfiring also, i replaced the wires and plugs on sunday and it fixed much of the problem but when i get 60+ it seems to still misfire slightly. what else should i look for into what it could cause this? im not sure if it is my number 5.