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ZZDaryl, Chevy Technician
Category: Chevy
Satisfied Customers: 12547
Experience:  28 year experience, Master Mechanic
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How often should I change coil packs on 2004 suburban 1500 v8 5.3

Resolved Question:

How often should I change coil packs on 2004 suburban 1500 v8 5.3
Submitted: 5 years ago.
Category: Chevy
Expert:  ZZDaryl replied 5 years ago.
They usually are not replaced unless they are bad and causing a misfire, so if they are not causing a misfire I would not change them.
Customer: replied 5 years ago.
I have poor gas milage and hear a loud ticking from engine what could it be?
Expert:  ZZDaryl replied 5 years ago.
When do you hear the ticking? How long has it been ticking? How does it run other wise?
Customer: replied 5 years ago.
Hear the ticking all the time for the last 4or5months started to run ruff couple days ago
Expert:  ZZDaryl replied 5 years ago.
Noises are very hard to diagnose without hearing them but one common cause of a tick on this engine are the lifters and its possible they are the cause of you running problem which in turn can cause the low gas mileage.
ZZDaryl and other Chevy Specialists are ready to help you