99 Type SH
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Junior Member
Joined: Oct 2003
Posts: 1
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99 Type SH
I've noticed these problems with my car:
While waiting at stoplights, my car's RPMs at idle drop almost to the point where it stalls (like something just turned on in the engine). I've made sure it wasn't the A/C causing this, the fans, or anything else (they were all turned off). It just suddenly drops however many RPMs to make it feel and sound like it's about to stall. I also notice it while driving on the freeway. I'll be cruising or accelerating and it will suddenly have a dip in power. While at a stop, I'll also notice that the headlights will dim due to the reduction in RPMs. I'm not sure about the interval between occurances, but it is a continuing "problem".
A different (although possibly related) problem:
When I first got my car, I noticed that the engine makes a winding up noise when turned completely off (the keys are not in the car, nothing is turned on at all). I first noticed it while washing my car. I can't isolate where in the engine bay the sound is coming from, only that the sound is definitely noticeable standing next to or sitting in the car. It happens approx. every 10-15 minutes.
Has anyone experienced these problems with their Prelude?
While waiting at stoplights, my car's RPMs at idle drop almost to the point where it stalls (like something just turned on in the engine). I've made sure it wasn't the A/C causing this, the fans, or anything else (they were all turned off). It just suddenly drops however many RPMs to make it feel and sound like it's about to stall. I also notice it while driving on the freeway. I'll be cruising or accelerating and it will suddenly have a dip in power. While at a stop, I'll also notice that the headlights will dim due to the reduction in RPMs. I'm not sure about the interval between occurances, but it is a continuing "problem".
A different (although possibly related) problem:
When I first got my car, I noticed that the engine makes a winding up noise when turned completely off (the keys are not in the car, nothing is turned on at all). I first noticed it while washing my car. I can't isolate where in the engine bay the sound is coming from, only that the sound is definitely noticeable standing next to or sitting in the car. It happens approx. every 10-15 minutes.
Has anyone experienced these problems with their Prelude?
Senior Member
Joined: May 2003
Posts: 1,052
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From: Long Island, NY
probably gas escaping battery/tranny or coolant recovery system
regardless
first thing to do is isolate problem, its most likely ignition or fuel related.
sounds like either your running on 3 cylinders (bad plug wire)
or your fuel filter is needing replacement
try wiggling the spark plug wires with the car parked and idling like you described.
also try smelling the exhaust, if it REEKS of gasoline then you are pushing unburned fuel into the exhaust and its def an ignition problem
otherwise it could be a fuel issue
or of course the other option...compression, either being lost thru the head or somwhere in cylinder (rings)
def sounds like a dead or barely alive cylinder
check it out
~boomer
regardless
first thing to do is isolate problem, its most likely ignition or fuel related.
sounds like either your running on 3 cylinders (bad plug wire)
or your fuel filter is needing replacement
try wiggling the spark plug wires with the car parked and idling like you described.
also try smelling the exhaust, if it REEKS of gasoline then you are pushing unburned fuel into the exhaust and its def an ignition problem
otherwise it could be a fuel issue
or of course the other option...compression, either being lost thru the head or somwhere in cylinder (rings)
def sounds like a dead or barely alive cylinder
check it out
~boomer
