Help With Low Cylinder Compression - Honda Pilot

Wolfman_matt · 07-21-2009, 10:18 AM

Guys - while my wife gets the pilot, my DD is a 95 accord with 225k on the clock. It sometimes runs a little rough but generally OK and now needs some AC work. Before sinking a lot of $ in it I checked the compression.

While consistent between cylinders it is very low across the board (95-110 psi). Haynes manual for this engine specifies

Std 178 psi
Min 135 psi
Max variation between cylinders 28psi

Can I continue to drive for an extended time at such a low compression or do I have a time bomb?

Thanks
Matt

N_Jay · 07-21-2009, 10:27 AM

Are you sure your gauge is reading correctly?

Any other symptoms?

Wolfman_matt · 07-21-2009, 10:46 AM

N_Jay - I would assume that the data is good (maybe I shouldn't) as it was done at my neighbors repair shop. They did check each cylinder twice.

The car is low on power but I can't remember it ever having much. The MPG has always seemed low to me for such a small engine (26-30). I also notice under hard accelleration that there sounds like a loud air leak coming from the engine compartment. Overall it seems to idle and drive like I would expect a high mileage vehicle to.

Thanks
Matt

07-21-2009, 10:18 AM	#1 (permalink)
Wolfman_matt Registered User Join Date: Nov 2002 Location: Apex, NC Posts: 176 Feedback Score: 0 reviews	Help With Low Cylinder Compression 95 Accord Guys - while my wife gets the pilot, my DD is a 95 accord with 225k on the clock. It sometimes runs a little rough but generally OK and now needs some AC work. Before sinking a lot of $ in it I checked the compression. While consistent between cylinders it is very low across the board (95-110 psi). Haynes manual for this engine specifies Std 178 psi Min 135 psi Max variation between cylinders 28psi Can I continue to drive for an extended time at such a low compression or do I have a time bomb? Thanks Matt __________________ Sagebrush Pilot EX I-VES DVD fog lights MDX Wheels Chrome side steps chrome grill and handles Yakima Rack Woodgrain steering wheel

07-21-2009, 10:27 AM	#2 (permalink)
N_Jay Registered User Join Date: May 2002 Location: Chicago, NW Burbs Posts: 13,555 Feedback Score: 0 reviews	Are you sure your gauge is reading correctly? Any other symptoms? __________________ However beautiful the strategy, you should occasionally look at the results. Sir Winston Churchill

07-21-2009, 10:46 AM	#3 (permalink)
Wolfman_matt Registered User Join Date: Nov 2002 Location: Apex, NC Posts: 176 Feedback Score: 0 reviews	N_Jay - I would assume that the data is good (maybe I shouldn't) as it was done at my neighbors repair shop. They did check each cylinder twice. The car is low on power but I can't remember it ever having much. The MPG has always seemed low to me for such a small engine (26-30). I also notice under hard accelleration that there sounds like a loud air leak coming from the engine compartment. Overall it seems to idle and drive like I would expect a high mileage vehicle to. Thanks Matt __________________ Sagebrush Pilot EX I-VES DVD fog lights MDX Wheels Chrome side steps chrome grill and handles Yakima Rack Woodgrain steering wheel

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