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2008 Honda 2.4L wont go past 200K RPM. Changed spark plugs,

Customer Question
2008 Honda 2.4L wont...

2008 Honda 2.4L wont go past 200K RPM

Mechanic's Assistant: What is the model of your '08 Honda?

Changed spark plugs, looked OK Accord

Mechanic's Assistant: How many miles are on the car? When did you last change the plugs?

150K miles

Mechanic's Assistant: Are you fixing your Accord yourself? What have you tried so far?

Changed plugs, Swapped coil packs, adjusted valves

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Changed the starter about 3 Months ago, with Aftwermarket starter...it cranks slower than OE starter Problem began in parking lot with a slow start, then would not go over 25MPH on way home...apears to be in Limp Mode Oil level is OK

Submitted: 7 months ago.Category: Honda
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Answered in 41 minutes by:
12/29/2017
Mechanic for Honda: Gabriel Grey, Auto Service Technician replied 7 months ago
Gabriel Grey
Gabriel Grey, Auto Service Technician
Category: Honda
Satisfied Customers: 451
Experience: Master Service Technician
Verified

Good evening, I hope you are doing great. I would be happy to assist you with this today.

Does the car currently have the check engine light on?

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Customer reply replied 7 months ago
even after clearing codes check engine comes on a code come back
Mechanic for Honda: Gabriel Grey, Auto Service Technician replied 7 months ago

What code are you currently getting?

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Customer reply replied 7 months ago
P0300, P0302, P0303
Mechanic for Honda: Gabriel Grey, Auto Service Technician replied 7 months ago

Okay got it. Have you inspected the intake manifold? If the spark plugs and coil packs are new then we may have an issue with the manifold gasket or the injectors

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Customer reply replied 7 months ago
Do you have a suggestion for checking the manifold gasket?
Mechanic for Honda: Gabriel Grey, Auto Service Technician replied 7 months ago

The best way to check it if you do not have a smoke machine is either by using a can of starter fluid or brake cleaner. With the engine running spray it around the manifold and monitor for a change in engine RPM

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Category: Honda
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