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Misfiring on all cylinders

Tiny
JVREPAIR
  • MEMBER
  • 2004 HONDA ODYSSEY
  • 3.5L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 140,000 MILES
Hey hows it going? A bout a week ago this van started with a misfire in all cylinders. Some people say that it could be the EGR valve. Some other people say I need to adjust the valve. Other say that the intake could be clogged. So knowing that you guys have more experience I was wondering if you guys could shoot me some tips on what the problem could be? Thanks, John
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Friday, November 18th, 2016 AT 5:39 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Misfires are very hard to diagnose and cheapest option is to have amechanic fix it because it can be any sensor, injector or basic engine problem. you can start by checking for a vacuum leak, fuel pressure , and scanning for codes. auto parts rent gauge see link. also, check compression.and clean EGR and passages.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
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Saturday, November 19th, 2016 AT 6:55 AM

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