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GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15181
Experience:  GM Grand Master Technician 2007. 14 years experience.
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Have a misfire on cyl.4 on a Chevy Sonoma have spark new

Customer Question

Have a misfire on cyl.4 on a Chevy Sonoma have spark new plugs,did a fuel pressure test.still runs bad
Submitted: 1 year ago.
Category: Chevy
Expert:  Roy replied 1 year ago.

good morning my name is ***** ***** I will assist

you need spark, fuel and compression in the cylinder for it to work. you replaced the plug but you need to see if it has spark. I would also remove the plug and check compression.

a bad ignition wire, distributor cap, fuel injector or vacuum leak are other possibilities for the issue.

Roy

Expert:  Roy replied 1 year ago.

how are you making out

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