Mechanics

"NUMBER 7 MISFIRE" CHEVY 5.3T 4X4 EXT. CAB

2004 Chevrolet Silverado • 101,000 miles

I have a 2004 chevy 5.3t ext. Cab 4x4. I am getting a number 7 misfire code. I changed the Coil on cylinders 3 and 7.3 cleared up, and 7 is still misfiring. Could it be an injector vs. An elect. Prob?
any help would be greatly appreciated?

Thanks
Cole
Avatar
Broncbuster35
April 2, 2012.




It certainly could. Try moving the plug and wire around too. Examine the plug closely for a crack in the porcelain.

Wrenchtech
Apr 2, 2012.
I forgotto mention, I have also already changed the plugs and wires. I rechecked the codes this afternoon, and now it's throwing a "Multiple Random Misfire" Code. WHT. Gggrrrrr

Tiny
Broncbuster35
Apr 3, 2012.
Try and spray the intake down with water. You could have a intake leak from the gaskets get warped. Does it do it more hot or cold?

Chevyforlife
May 19, 2012.
It does it all the time. Unless I hold it to the woodwork. Then it runs like a top.
AD

Tiny
Broncbuster35
Jul 5, 2012.

AD