Question about 1989 Honda Accord 4 Door

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89 ACCORD BACKFIRE

I have an 89 honda accord that backfires and stumbles when the automatic transmission shifts. A hose that connects the air control valve B and the anti afterburn valve to the carb blows off if you accelerate quickly. It doesn't blow off if you accelerate gently but it still stumbles. Can anyone help.

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  • bud1 Jan 15, 2009

    Car has already been tuned up, timing belt was changed, carb was changed. The mileage is 184,000 but has good compression and their is no leakeage around the head valves. Their was a broken vac hose on the egr but I fixed that and the problem still exists. When it backfires it is running fine and as the trans completes its shift then there is only one backfire and stumble untill the next shift. If the car is in park the car revs fine and does not stumble or backfire. Only problem is just after shift point.

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  • 26 Answers

Needs tune up , whats milage?? motor repair possible,valves

Posted on Jan 14, 2009

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Does the ECM control the automatic transmission or the shifting pattern?


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http://schematicsdiagram.blogspot.in/2012/02/feels-like-backfire-from-engine-when.html


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1 Answer

I have a 91 honda accord with an automatic trans. & when i shift into reverse it refuses to engage & makes a high pitch gear slipping grinding sound ! NOT GOOD ! ,I just replaced the transmission con


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What makes my 1991 honda accord ex backfire/


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hope it helps mate

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