help me, engine noises, shaking, possibly TB problem???
my engine is making all kinds of funny noises.
1) Repetetive ticking (proportional to RPM), nothing tooooo loud, and with higher RPMs you cant really hear it, it gets drowned out by the sound of the engine.
2) As i turn off the car, from idle to zero RPM it makes a repetetive squeaking noise.
3) I actually tried to record the above two (still messing w/ software) and in the process i noticed something that may be even more worrysome, as i hold the throttle steady at anywhere between 2000-2500 RPM the car isnt smooth at all: it kinda shakes!! It doesnt do it anywhere else, just there.
What the hell is wrong with my car?????
Thanks
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1999 Prelude 2.2 VTi 4WS
I speak fluent typo
In my town there are shops that do JUST Honda/Acura... if I were you I would try one of those shops if you can find one, and if not... I would take it to Honda... sorry thats about as helpful as I can be.
I'll obviously have to take it to honda to get it fixed, but sometimes they fix something that has nothing to do with the problem, so i'm trying to understand what might be wrong so i can discuss with them...
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1999 Prelude 2.2 VTi 4WS
I speak fluent typo
How many km's on the car? At 48K it's time for a valve adjustment. Near 100k it's time for timing belt and Valve adjustment. The ticking most likely are your valves. I've heared a H22 in need of a valve adjustment and I was shocked at how it sounded.
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2001 Honda Prelude Special Edition @ 6.5 psi
1999 Honda CR-V EX Edition
1993 Honda Civic DX Coupe
The valve adjustment can't explain the squeaking as the car turns off, though, or can it? And what about the shaking... ? I find it awfully odd that the car vibrates at a very specific interval of RPMs...
thanks
oh btw, i'm american, but i live in switzerland
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1999 Prelude 2.2 VTi 4WS
I speak fluent typo
Re: help me, engine noises, shaking, possibly TB problem???
Happy 4th. Didn't know you were American.
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Originally posted by nuro
1) Repetetive ticking (proportional to RPM), nothing tooooo loud, and with higher RPMs you cant really hear it, it gets drowned out by the sound of the engine.
Sounds to me like a valve adjustment. If it just started recently it might be something else. Depends on the intensity of the sound. A valve adjustment might not be a bad idea to be safe. You can do this yourself with basic hand tools if you are interested.
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2) As i turn off the car, from idle to zero RPM it makes a repetetive squeaking noise.
Can you describe it? Do you know what loose belts sound like? Know what "dieseling" sounds like? Mine used to squeak once when shutting down, sounded like a combination of the two. Never did figure out what the problem was, I assumed it was a belt complaining when the engine shut down under compression.
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3) I actually tried to record the above two (still messing w/ software) and in the process i noticed something that may be even more worrysome, as i hold the throttle steady at anywhere between 2000-2500 RPM the car isnt smooth at all: it kinda shakes!! It doesnt do it anywhere else, just there.
This is odd. I would look at possible ignition and fuel issues. I assume plugs, cap, rotor are all in good shape? At 30k km I wouldn't expect any issues, but I know you drive the car hard.
You might check for a MAP issue- thump on the map with a screwdriver while you hold the throttle open and see if that helps.
Aside from MAP, ignition... balancer timing is about all I can think of, but that would be such a pain to check as to not be worth it.
Is the problem JUST at those RPMs? Nowhere else? How bad is the shake? Can you just feel it, or can you see the motor vibrating?
Originally posted by marcucci Happy 4th. Didn't know you were American.
Thanks you too. Yeah, i lived in CA till i was 18 and still go back every so often. Its too bad there arent a lot of other americans here to celebrate the 4th
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Sounds to me like a valve adjustment. If it just started recently it might be something else. Depends on the intensity of the sound. A valve adjustment might not be a bad idea to be safe. You can do this yourself with basic hand tools if you are interested.
The sound isnt very loud, but its there. You mentioned 'dieseling' well sometimes to me it does sound like a diesel car (and i should know, i used to have a 78 diesel benz). I dont think i noticed it (or passed it off as normal) in the beginning, but it was in fact always there. I noticed it one day when driving by a big concrete wall at low rpms, and after that whenever i listen i can hear it.
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Can you describe it? Do you know what loose belts sound like? Know what "dieseling" sounds like? Mine used to squeak once when shutting down, sounded like a combination of the two. Never did figure out what the problem was, I assumed it was a belt complaining when the engine shut down under compression.
see end of message.
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This is odd. I would look at possible ignition and fuel issues. I assume plugs, cap, rotor are all in good shape? At 30k km I wouldn't expect any issues, but I know you drive the car hard.
You might check for a MAP issue- thump on the map with a screwdriver while you hold the throttle open and see if that helps.
Aside from MAP, ignition... balancer timing is about all I can think of, but that would be such a pain to check as to not be worth it.
Is the problem JUST at those RPMs? Nowhere else? How bad is the shake? Can you just feel it, or can you see the motor vibrating?
i do drive the car very hard sometimes, but not all that often. Most of my driving is just city driving so you cant really drive it hard then except for a few fun turns...
the problem is JUST at those RPMs. it is somewhat subtle, but definetely present. I didnt bother checking at 6k+ rpms. You cannot see the motor vibrating, but you can feel it, mostly in the back of the seat. Its kinda like a lumpy idle....
so here's what i did: its impossible to describe sounds, now you get vids LOL. about a minute and a half in total of me playing with the throttle.
notably, at the end of the first one i turn the car off twice, you'll hear the squeaking. the second one i approached the camera a lot closer to the engine and near the end tried to hold the throttle at the position where its easiest to hear the valves (or whatever it is).
the whole shaking thing is ignored in this video because there is nothing visual or audible about it, just the car vibrating awkwardly..
Well, the ticking noise could be your fuel injectors. They are quite audible on my car. Try putting your fingers on one of them, and move the throttle with your hand (be careful, the throttle arm gets hot). See if the click you feel from the injector somewhat matches the sound you are hearing. Ill listen to my car in the morning and compare.
As for the sqeaking, my first thought was it could be an accessory belt. I was thinking it would most likely be the P/S belt, since the tension on it is lower than the alternator/air conditioning compressor belt. Ive noticed that with the engine off, you can move the P/S pulley, and the belt moves with it (the crank pulley doesnt). The thing is, it would seem that they would spin down at the same time. Can you get someone to shine a flashlight down at the belts and see if all the pulleys and belts stop together when the engine is shut off? (And more importantly, listen and see if the noise is louder on that side of the engine bay.) One other thing... can you hear the sqeaking a little while the engine is running? If I turn the sound up on the first clip, I think I can almost hear it when the engine is decelerating from a sustained RPM.
P.S How long have you had those breather filters on your car? Those arent making the whistling/sqeaking noise, are they?
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2001 Prelude Base (#173 DSP)
Electron Blue Pearl
A lot of go faster, turn harder parts.
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Originally posted by nighttime Well, the ticking noise could be your fuel injectors. They are quite audible on my car. Try putting your fingers on one of them, and move the throttle with your hand (be careful, the throttle arm gets hot). See if the click you feel from the injector somewhat matches the sound you are hearing. Ill listen to my car in the morning and compare.
ill try this, and tell me what you think after u listen to your car..
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As for the sqeaking, my first thought was it could be an accessory belt. I was thinking it would most likely be the P/S belt, since the tension on it is lower than the alternator/air conditioning compressor belt. Ive noticed that with the engine off, you can move the P/S pulley, and the belt moves with it (the crank pulley doesnt). The thing is, it would seem that they would spin down at the same time. Can you get someone to shine a flashlight down at the belts and see if all the pulleys and belts stop together when the engine is shut off? (And more importantly, listen and see if the noise is louder on that side of the engine bay.) One other thing... can you hear the sqeaking a little while the engine is running? If I turn the sound up on the first clip, I think I can almost hear it when the engine is decelerating from a sustained RPM.
its wierd you can "almost" hear it when the engine is running, at idle... but its so faint i didnt bother to mention it.
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P.S How long have you had those breather filters on your car? Those arent making the whistling/sqeaking noise, are they?
they've been on about 1500km (1000 miles). I obvioulsy thought of this, so i put my ear right by them, and tried covering them with my hands to 'muffle' the noise but no, they have nothing to do with it. In any case, instead of those filters there is normally a rubber tube, and that wouldn't muffle noises of this magnitude.
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1999 Prelude 2.2 VTi 4WS
I speak fluent typo
Your car is apparently possessed. I've never heard that squeaking noise before. I don't think it's a belt, it sounds more like a fluid-based noised, maybe p/s fluid or pump?
Vid 2 has more of a "whiny" quality to it that sounds like a water pump, alternator, or p/s pump (bearing) getting ready to go. It's not loud enough that I think it's an issue, but it might be related to the squeaking/squishing noise.
I couldn't identify the ticking you were talking about- sounds like you have stock or slightly more clearance on the valves. A valve adjustment .002" tighter than stock should fix that. If not, then you definitely know you have a problem.
Could also be a header leak but it doesn't appear you have a non-stock header or reason to suspect a leak.
Did you swap to a Type S intake, or was that part of your motor? I'm curious if you have the Type S head if that's the case. At any rate, the second breather on the intake pipe is completely unnecessary. Shouldnt' contribute to the noises but you don't need it. Find a vacuum or hose plug of the proper size and use it. Should hurt anything if you leave it on, just unnecessary.
Originally posted by marcucci Your car is apparently possessed. I've never heard that squeaking noise before. I don't think it's a belt, it sounds more like a fluid-based noised, maybe p/s fluid or pump?
Vid 2 has more of a "whiny" quality to it that sounds like a water pump, alternator, or p/s pump (bearing) getting ready to go. It's not loud enough that I think it's an issue, but it might be related to the squeaking/squishing noise.
I couldn't identify the ticking you were talking about- sounds like you have stock or slightly more clearance on the valves. A valve adjustment .002" tighter than stock should fix that. If not, then you definitely know you have a problem.
Could also be a header leak but it doesn't appear you have a non-stock header or reason to suspect a leak.
Did you swap to a Type S intake, or was that part of your motor? I'm curious if you have the Type S head if that's the case. At any rate, the second breather on the intake pipe is completely unnecessary. Shouldnt' contribute to the noises but you don't need it. Find a vacuum or hose plug of the proper size and use it. Should hurt anything if you leave it on, just unnecessary.
Thanks for having a look/listen. I was aware that the breather on the intake is useless but was too lazy to change anthing. its on my 'to do' list though. The intake is the european intake, i didnt swap. I don't know if my head is the type S head.... from what we gathered in the other post the h22a8 is the type s engine detuned for european octane levels, where as the h22a5 (mine) is the equivalent of the h22a4.... but who knows...? there is a member on here in turkey who has the service manual i actually PMed him about this earlier today. just for kicks, let me throw in that the h22a7 is the accord type r engine.
As far as the noises go, this is definetely making me uneasy. I'm taking it to my mechanic tomorow and if he can figure out anything quick we'll get that done. I may have to take it into honda and have them fix all this stuff under warranty but i have my doubts as to any of them knowing wth is going on. What i was hoping is the various symptoms(shaking at a certain RPM level, ticking, and squeaking) may be from one problem. (or one problem + valve adjustment)
From about 38-43 seconds on the second vid is when the ticking i describe is the most obvious.... I hear the whine you mention, in the background there is definetely a ticking. Much earlier in this thread you mentioned a dieseling sound. Dont you think the engine sounds a bit like this at idle?( and what would a dieseling sound indicate?)
Thanks again
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1999 Prelude 2.2 VTi 4WS
I speak fluent typo
Well nuro, I listened to my car last night, and your car and mine sound pretty similar, but I think your engine is a bit louder than mine. (They may be the same, and its just the video that makes it sound louder.) It could be that we both just need a valve adjustment, my car has a touch over 31500 miles on it.
I did have an idea after reading marcucci's post re: the squeaking noise. It seems that we both are centering in on the P/S pump. You could remove it from the equation by removing the P/S belt and then running the engine. If the noise goes away, then you have found the culprit. (You might suggest this to your mechanic if you dont want to do it yourself, it should only take 15-20 minutes to try it out, if that long.) Of course, if the noise stays, at least you know that its not the P/S pump.
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2001 Prelude Base (#173 DSP)
Electron Blue Pearl
A lot of go faster, turn harder parts.
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Originally posted by nuro
The intake is the european intake, i didnt swap. I don't know if my head is the type S head....
That's definitely the Type S intake. It would be nice if you had the Type S motor but slightly detuned!
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What i was hoping is the various symptoms(shaking at a certain RPM level, ticking, and squeaking) may be from one problem. (or one problem + valve adjustment)
I don't think it's just a valve adjust. As for dieseling, I was just curious if it sounded like the valves were mal-adjusted which it sounds like they are.
The shudder could be something along the lines of a skipped tooth on the balancer belt or a slipped harmonic balancer (crank pulley). You'd probably need a mechanic to pull the timing cover and check everything out to be certain. I would let Honda worry about it.
So far, all I "hear" that I'd worry about is the valve adjust. I'd try removing the p/s belt to eliminate it but I just don't seem as concerned about the squishing/squeaking noise.
That's definitely the Type S intake. It would be nice if you had the Type S motor but slightly detuned!
you're telling me. maybe the h22a5 is the type S with 10:1 compression.... :/ . Someone also mentioned that the h22a5 is an OBD1 car.... how would i be able to check? When i looked at the ECU to install my apexi RSM, it looked like the ones in pictures i've seen in the US. In any case i sent you a PM about my ongoing motor search...
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I don't think it's just a valve adjust. As for dieseling, I was just curious if it sounded like the valves were mal-adjusted which it sounds like they are.
The shudder could be something along the lines of a skipped tooth on the balancer belt or a slipped harmonic balancer (crank pulley). You'd probably need a mechanic to pull the timing cover and check everything out to be certain. I would let Honda worry about it.
So far, all I "hear" that I'd worry about is the valve adjust. I'd try removing the p/s belt to eliminate it but I just don't seem as concerned about the squishing/squeaking noise.
My mechanic looked at all this today and identified the noises (without opening anything up or playing with belts) as the following:
1) squeaking: the breather filter (engine letting go of compression).... i just dont hear it from there though....
2) what i consider ticking: he said it sounds totally normal
3) shudder: he said its definetly not normal and guesses i need to replace the spark plugs, he says one piston isnt getting a clean spark.
Honda will be seeing my car for quite a few reasons, it seems :/
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1999 Prelude 2.2 VTi 4WS
I speak fluent typo
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