myro255

i test drove a 93 lude the other day, seriously considering buying it.

one thing though, i noticed a slight rev hang between shifts (ie: 2nd, clutch to 3rd at 4000 and kinda hangs at 4000 for a second or two). is this anything serious? what could cause it? is this normal honda behavior?

i would REALLY appreciate any help you can give, and if anyone would like to be my "guide" and answer some of my questions through email or something that would really help me decide on buying this car.

shoot me an email, or reply here. Myro255@yahoo.com

thankyou

myro255

also i noticed this car has a VTEC system (im very new to this), could that have anything to do with the rev hang? i plan on going for a second test drive tomorrow afternoon and i need to know a few points to look at. thankyou

jsmooney

check and make sure the floormat isnt too close to the gas pedal. it sounds like a sticky throttle somewhere - nothing major IMO.

check and make sure the 1/4 panels arent rusted and look for rust on the sunroof. check for your general things. I always check the oil and check and cooland just to be sure

myro255

thankyou for the quick reply!

if its not the floor mat, throttle cable, could there be some underlying technical problem? also if someone could point me in a "VTEC for NOOBS" guide somewhere i would appreciate it :P

myro255

PS, i live in socal so rust really isnt a problem here.

Duston

It may be an auto motor/computer in a manual car. This is just a shot in the dark all the good answers were taken.

myro255

could rev hang have anything to do with water in the engine? like staling out in a puddle.

myro255

nah its the Prelude S VTECH model, no automatic option was made available

jsmooney

when in 1st gear (so you dont go too fast) take it up past 5,000 rpm. Make sure you have the gas down a good bit (almost flooring it). you should hear the engine change sounds around 5,000 or so rpm and you should feel an increase in power - that's vtec

G_Loc

Try revving it in neutral till 3k or so and look at the tach, see if the revs hang at around 2k. A bad TPS can cause this.

VTEC engagement is at 5,200 rpm

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myro255

thanks,

how much would a repair for this run me? is it something i could do myself?

planning on going out today, im gonna take my camera with me just incase i notice the rev hang again. anything i should test for the vtec other than what the other guy just said?

jsmooney

just make sure the thing runs smooth. get the vin, run a carfax just in case....better safe than sorry. test vtec!!! (that alone might sell the car for you)

myro255

well believe it or not, the car is owned by a little old lady, owned since new. sounds like a classic case of an auto dealer just tryin to make a quick buck

some of the things she tells me scare me though (she drown the engine once or twice .___. and there sounds like theres a hole in the exhaust, prob from bottoming out a few times), and regular mateinence probably wasn't performed...

natemanas

Depending on how it was driven, you may wanna consider the synchros..
They will hang in as long as it takes them to match gear speeds and teeth, so a longer hang MIGHT indicate worn synchromesh dogteeth.

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I used to be different, Now I'm the same.

natemanas

BTW, these arent terribly expensive, but installing them will be a pain if you've never rebuild a transmission.

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I used to be different, Now I'm the same.

G_Loc

Yea you might want to re-evaluate how a transmission works. Bad synchros won't cause your RPMs to hang, especially not when the clutch is disengaged.

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natemanas

I've actually got a pretty fair handle on how they work, and have rebuilt 3 for class. Synchros between say, 2 gearsets, if they arent matching speeds CAN (which is why I said MIGHT above) cause a hang. I'm not trying to be a douche, but I know this through having to diagnose several trans issues for a hands on test in the automotive degree I'm in.
And as far as the cost of synchros.. in comparison to a new trans or a full rebuild, it's fairly inexpensive. I'm not saying that this IS the problem, but you may wanna consider it...

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natemanas

Oh, you know what, i read your post wrong, G-loc.. RPMs wouldnt hang, but you would have to keep RPMs steady to shift with bad synchros.. my bad for not reading carefully.

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MLBZ521

It's "VTEC" and it's a "Prelude Si VTEC." Not "S."

A TPS is about $30 and two screws, very easy.



Is it really hanging for a second or two, or does it just seem that way? What do you expect to do? Drop instantly? It will sit there for a moment before dropping.. At least my H23 did. My new JDM H22A doesn't hold it's RPMs as long now since it has a 8lb Flywheel.

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natemanas

Ok, new update... I recently bought a new tps, as My other one finally went kaput after messing with it so much, and when it did, I was also experiancing this "rev hang".. it happened both inbetween shifting, like it would stay up around 2-3k, and also when I was slowing down.. and it would only fully drop to idle upon full stops.
So, my suggestion is not to 'buy a new TPS', but consider testing it, make sure it's working properly, and also you might want to look at your IACV and look for vacuum leaks, as this will cause at least a bouncy idle, if not a constant revving.. It was great because the day after I experienced this, we went over some of these systems in class, and it really helped me narrow down the issue..

I hope that helps you out.

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I used to be different, Now I'm the same.