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GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15201
Experience:  GM Grand Master Technician 2007. 14 years experience.
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Chevy 5.3 Silverado 4x4 misfire on cylinder 1. Changed plug,

Customer Question

Chevy 5.3 Silverado 4x4 misfire on cylinder 1 . Changed plug , wire , coil pack and injector, still there
Submitted: 3 months ago.
Category: Chevy
Expert:  david craig replied 3 months ago.

Hi Im David, thanks for visiting the site. Try checking compression

Customer: replied 3 months ago.
Don't have a way to check compression
Expert:  david craig replied 3 months ago.

Ok, then do you have a way to check the voltage and grounds to the coil pack and do you have a noid light to check for #1 injector pulse from the computer?

Customer: replied 3 months ago.
Changed plug 1 with 3 same with oil packs 1&3 and wres and fuel injectors respectively still misfire on cylinder 1
Expert:  david craig replied 3 months ago.

ok. you need to check for injector pulse. and compression.

Expert:  david craig replied 3 months ago.

how it going?