why do my rpms hang at 3k on my prelude ~ then drop normal to idle
02-08-2009, 02:22 PM
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why do my rpms hang at 3k on my prelude ~ then drop normal to idle
95 H22a civic
I just put the Cylinder head back on after having the seats ground to spec.
example : I press the throttle quickly raising the rpms to 3500 then it slowly comes down from 3500 to umm 2000 then drops normally to idle. I checked the throttle cable and pulley and its all good. So?
I just put the Cylinder head back on after having the seats ground to spec.
example : I press the throttle quickly raising the rpms to 3500 then it slowly comes down from 3500 to umm 2000 then drops normally to idle. I checked the throttle cable and pulley and its all good. So?
Last edited by butter99; 02-08-2009 at 04:19 PM.
02-08-2009, 02:42 PM
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Re: why does my prelude rev hang ?
bump ~ When I press the throttle quick I have a quick hesitation. Rpms drop about 100 rpms then rise to 3500 and it takes its time coming down to 2k then drops normally. so?
02-08-2009, 05:23 PM
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Re: why do my rpms hang at 3k on my prelude ~ then drop normal to idle
coolant?? Something to do with the fast idle? coolant lvl is good.
WHY HANGING RPM at 3k!!??
WHY HANGING RPM at 3k!!??
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02-08-2009, 05:35 PM
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Re: why do my rpms hang at 3k on my prelude ~ then drop normal to idle
hmm ya my coolant lvl is staying right at the top. I have allready relieved the air at the top of the thermostat also.
02-08-2009, 05:41 PM
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Re: why do my rpms hang at 3k on my prelude ~ then drop normal to idle
try cleaning your iacv to see if gets better! is the throttle cable sticking? a friend of mine had a similar problem with his car and it ended up being a dirty throttle cable.
02-08-2009, 06:10 PM
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Re: why do my rpms hang at 3k on my prelude ~ then drop normal to idle
I have cleaned the idle valve. I have taken the throttle cable off and pushed the pulley alone and I still have the problem.
another symptom is : when I start the car the rpms immedietly jump to 2k then drop to normal idle.
another symptom is : when I start the car the rpms immedietly jump to 2k then drop to normal idle.
02-08-2009, 09:40 PM
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Re: why do my rpms hang at 3k on my prelude ~ then drop normal to idle
SOLVED : I am not using any smog devices right now. So I have most of my vacuum lines plugged. I plugged the air boost valve by sticking a hose to it and connecting the other end to one of the intake manifold ports. I figure hey its all vacuum so whatever. But that was my problem for the rpm hanging around 3500 and slowly dropping to 2500 then dropping normally from there.
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