96 silverado 5.7 multiple cylinder misfire

[96chevyprerunner]

Hey guys so heres the deal. I have a 1996 Chevy Silverado that is misfiring in four cylinders. The cylinders that aren't firing are numbers 1,2,7,8. So far I have gone through the motor to check for any un hooked wires, breaks in the wires and any grounds that were not hooked up. I have also replaced the spark plugs and the cap. Any help that you guys can provide would be greatly appreciated. Thanks in advance, Mike

[ericrlong]

Hey guys so heres the deal. I have a 1996 Chevy Silverado that is misfiring in four cylinders. The cylinders that aren't firing are numbers 1,2,7,8. So far I have gone through the motor to check for any un hooked wires, breaks in the wires and any grounds that were not hooked up. I have also replaced the spark plugs and the cap. Any help that you guys can provide would be greatly appreciated. Thanks in advance, Mike

Have you resolved your issue? I posted a request for info on my problem that sounds similar. 2002 5.7L & lost cylinders 1,3,5 and 7. All spark plugs were carboned on that left bank. right side was burning good. Have not got any responses from my posting. What was your fix, if it has been fixed? Thanks for any help.

[royg]

think you gotta find out if its ignition or fuel causing the miss to narrow it down. hows the fuel pressure?