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I have a 2000 honda odessey have changed all coil packs and

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spark plugs and injectors also...
I have a 2000 honda odessey have changed all coil packs and spark plugs and injectors also a sensor for timming. And erg valve. Engine idles rough when starting and light comes. Runs really good after warms up.
Submitted: 2 years ago.Category: Honda
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Answered in 6 minutes by:
11/9/2015
Mechanic for Honda: Roy, Import/Domestic Specialist replied 2 years ago
Roy
Roy, Import/Domestic Specialist
Category: Honda
Satisfied Customers: 6,746
Experience: ASE Master Tech
Verified

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

you have covered all the basics from the looks of it. I suspect carbon build up on the valves causing cold missfires. there are many products that will help with this. sea foam is a good product I use all the time. there are times that nothing will work and the heads need to be removed and the head disassembled to remove the carbon hardened on the valves.

try the sea foam first

Roy

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Customer reply replied 2 years ago
I use Lucas fuel treatment on a regular basis
Mechanic for Honda: Roy, Import/Domestic Specialist replied 2 years ago

that is for the injectors, not the valves.

Roy

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Customer reply replied 2 years ago
Ok I will try that next
Mechanic for Honda: Roy, Import/Domestic Specialist replied 2 years ago

hopefully it will work for you.

Roy

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Customer reply replied 2 years ago
I need to pull the valve covers off and check for carbon build up. I have always done the timing belt on time I do have 435,000 miles on this van
Mechanic for Honda: Roy, Import/Domestic Specialist replied 2 years ago

no, the carbon is inside the cylinder head, not accessible from the top end.

Roy

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Mechanic for Honda: Roy, Import/Domestic Specialist replied 2 years ago

how are you making out

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Roy
Roy
Roy, Import/Domestic Specialist
Category: Honda
Satisfied Customers: 6,746
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