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Old 06 Oct 2007, 05:40 pm
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Default 91 Honda Accord EX engine stumbles on acceleration?

I have changed spark plugs,fuel pump, pressure regulator,distributor cap,rotor wires,timing belt with timing checked, egr,pcv, Injectors , had transmission checked out it is good,could this be the ECU? and if so where can I get one cheap? not a racer or any of that, just a guy trying to make it to work and back. engine runs good at Idle and low speeds after 50 is when it happens, usually. any help would be greatly apreciated.More info. when excelirating at around 40-50 there is a noticeable stumble, I had the transmision fully serviced one month ago and watched them do it.another problem has surfaced now,the drivers side seatbelt (shoulder) alarm is sounding and sometime works.what sounds like a cylanoid clicking noise is coming from the plenum.More info. when excelirating at around 40-50 there is a noticeable stumble, I had the transmision fully serviced one month ago and watched them do it.another problem has surfaced now,the drivers side seatbelt (shoulder) alarm is sounding and sometime works.what sounds like a cylanoid clicking noise is coming from the plenum.
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Old 06 Oct 2007, 05:45 pm
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looked at my haynes manual. the only thing it mentioned that you didnt do was an intake manifold leak. good place to find used parts other than ebay is car-parts.com
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Old 06 Oct 2007, 05:48 pm
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Could be a loose, cracked vacuum hose. As you press the gas your motor will move ever so slightly maybe making a small hole/crack in a hose. An easy way to check this is to start your engine, take a can of starting fluid and spray around your intake area and you vacuum lines. the spray will come out as a mist. if you see any of the mist sucking into an area, spray into that area, and if you have a leak you will see all the mist going into it. I have found quite a few leaks this way and for the 3 dollars for the can of starting fluid it sure beats the trip to the mechanic!! Also you may have to rev your engine to move the motor too. you can have a friend help you or work the throttle body yourself.
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Old 06 Oct 2007, 05:52 pm
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What do you mean by stumbles at 50? When was the last transmission fluid flusj and fill?
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