Misfiring issue

[DallasTahoe]

are your rpms dropping while your driving?

No not at all while driving, only while sitting at a light or in traffic, the idle just goes up and down, and only when it is warmed up real good

 

[DallasTahoe]

Any change by putting the old coil back in?

I changed out the coil and there was no change, but here's what I'm thinking... My misfires are at cyl 6 and 3, After looking at one of my old caps I see that these two cylinder spark pathways go right next to the main coil input, so maybe that's how my misfires are happening?

 

[ccapehartusarmyINF.(ret)]

id start testing everything connected to cylinder 3 and 6 for high resistance
wich a multi tester

 

[DallasTahoe]

Yesterday I got a new AC delco cap and rotor and even replaced the distributor drive gear, since it was worn pretty bad. now I get about the same amount of misfires but across more cylinders, not just 6 & 3 I don't know what to do. I'm so tired of diagnosing and spending money... Help?


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[DallasTahoe]

Sooooooo I believe I fixed it!!!
I pulled the passenger side valve cover and reset the valve lash on all 4 cylinders, put it back together and put my obd2 adapter on, started it and it started right up and I could feel a noticeable difference. Checked the scanner after I let it get up to temp and sure enough no more misfires on cyl 6, now I just need to readjust bank 1 and I should be good!!


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