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Old 23 Nov 2009, 10:01 am
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Default 95 Honda Accord, weird noise?

My old 95 honda accord with over 200k has been making high noise rpm go real high and down, (owhhhhhhh, owhhhhhhhhhh) for a year. changed timing belt as suggest themachanic, tune up done, sensers changed, nothing helped. It started as a in morining only but now its all day thing, even when I drive over 50 miles. thanks

thanks for the answers, let me try to explain it again. When I start the car, or even when driving but take my foot off gas pedal, the car makes real loud noises, and RPM gauge needle just keeps going up and down. It seems the pressure is too high. the mechanic told it needed change the timing belt, and he did so, as well as changing few other items he suspected, but nothing helped. Now its been a year or so and the car still runs well otherwise, but I drive it now more often and I am not sure if its safe enough. thanks
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Old 23 Nov 2009, 10:16 am
Join Date: Jul 2009
Posts: 51

for a car this old and a questiosn like this I suggest u use proper grammar and details details details. What kind of sound, where? did u open the hood and rev the car (throttle cable) to see where it's from? Back engine, front, belts, etc. details details
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Old 23 Nov 2009, 10:31 am
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does it sound like a whinning noise and whines higher and louder as you drive faster and higher rpm? could be a pump or belt.
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Old 23 Nov 2009, 10:46 am
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Join Date: Aug 2007
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Two likely possibilities - one of the control valves (there are 3) is doing it or there is a large vacuum leak. If you remove the duct from the air cleaner and cover it so no air can get into the engine, the engine should die. I'm betting it won't even slow down much. You can blow into the duct by putting it against your face (turn the engine off first!) and have a friend feel and listen for the leak. That's how I found the intake manifold gasket was leaking badly on my daughter's 1993 Accord, which had the same symptoms. It got worse over the course of a year or so and I finally got serious. The intake manifold gasket had broken into a lot of pieces.
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Old 23 Nov 2009, 11:01 am
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Join Date: Aug 2007
Posts: 266

Idle speed control valve,uses coolant to heat up wax inside to open up air valve,there are 2 small hoses,clogged up causing no coolant flow through,thus make cold fast idle fluctuate up and down.Safe to drive,just irritating to hear idle up and down repeatedly for a long time.
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