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91 clutch intermittently goes to the floor to crank car.

 
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Old 05-14-2011, 08:28 PM
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91 clutch intermittently goes to the floor to crank car.

Hi all. So I think this is my first post! FIRST off! This site has been an incredible source of info for Prelude owners. I'd be lost as hell! OK..so here's the dilemma. I'll hop into the car push the clutch in and go to crank...no dice. hmm that's strange...push the clutch in again and nothing...so I realllly push it in and finally it turns over. weird huh? I checked the master cylinder..and it was a little below the line. So I topped it off. It hasn't gone bone dry so maybe it's a slow leak??? I can't see any leaks on the slave cylinder it looks really rusted..not sure if that's a sign of fluid corroding the metal. I'm pretty sure I had both installed new in the last year or so. It's been doing this for about 3-5 days. sometimes I depress the clutch and it cranks fine. other times I have to push it veryyy far till it'll turn over. I hope I can get this resolved. I know I'm in the right place. HELP for a NOOB!!-Mark
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Old 05-15-2011, 01:27 AM
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Re: 91 clutch intermittently goes to the floor to crank car.

Well, it could be a combination of things that's causing your problem. Could be Clutch master cylinder, could be the clutch slave cylinder, or could be that little hose that routes to the slave cylinder that is leaking. It's rubber and it dry rots over years(decades). This happened to me.

Plus, a rusted looking slave cylinder could be suspect --- Ask a friend to push in the clutch pedal and examine the slave cylinder...is it leaking a little? is it at least engaging(moving)?
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Old 05-15-2011, 03:19 AM
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Re: 91 clutch intermittently goes to the floor to crank car.

You are talking about two different problems. To clarify, are you saying that sometimes when you push the clutch in the starter won't turn the engine over? If this is the case, it has nothing to do with your clutch fluid. It has to do with the safety switch on the clutch pedal.

If you are losing clutch fluid, it could be the master, slave, or the rubber line that runs to the slave cylinder. Any or all of these could be leaking.
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Old 05-15-2011, 08:39 AM
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Re: 91 clutch intermittently goes to the floor to crank car.

Quote:
Originally Posted by luzer View Post
You are talking about two different problems. To clarify, are you saying that sometimes when you push the clutch in the starter won't turn the engine over? If this is the case, it has nothing to do with your clutch fluid. It has to do with the safety switch on the clutch pedal.

If you are losing clutch fluid, it could be the master, slave, or the rubber line that runs to the slave cylinder. Any or all of these could be leaking.
On top of this helpful post, check out this thread: No more CLUTCH PROBLEM threads!!!
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Old 05-15-2011, 12:57 PM
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Re: 91 clutch intermittently goes to the floor to crank car.

Quote:
Originally Posted by Prelude13 View Post
On top of this helpful post, check out this thread: No more CLUTCH PROBLEM threads!!!
That link is good information for anyone who is inexperienced with clutch work. But since it's not specific to the 3rd gen, the diagram of the clutch components is a little off. It shows a hard line going to the slave and a rubber line coming off the master. That's the opposite of what we have. But still a nice write up.
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Old 05-15-2011, 01:38 PM
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Re: 91 clutch intermittently goes to the floor to crank car.

whether the clutch is engaged or not, if theres fluid or not, if theres a transmission or not, as mentioned above, there is a sensor for the clutch pedal. its not in the motor or on the tranny or clutch assemblies. if your problem is as described where sometimes you need to push the pedal further to start it and you have no other symptoms, the neutral safety switch (clutch sensor) is the fault. two ways to go about it. fix it or disable it. depending on which style it is, if you want to disable it there are a few options. if there is one wire or two, disconnect one from the switch and try to start it in neutral. if that doesnt work try connecting them and start it. one of those will work. obviously its there for safety but if you are the only one EVER to be in it, i wouldnt worry about it.
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Old 05-15-2011, 02:31 PM
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Re: 91 clutch intermittently goes to the floor to crank car.

Thank you guys!! I have another friend who mentioned the neutral switch to be the culprit as well. I will go troubleshoot it today and come back with results. as always thanks for the replies and advice. Since I'm the only one who drives it for the most part i have no problem just disengaging it.
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Old 05-15-2011, 03:54 PM
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Re: 91 clutch intermittently goes to the floor to crank car.

i should mention one thing, NEVER EVER disable a neutral safety with a remote start. had to be said. glad i could help
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Old 05-15-2011, 08:55 PM
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Re: 91 clutch intermittently goes to the floor to crank car.

Hi all! got underneath to investigate and reached up to feel around and voila! I found the pedal stopper(the little plastic piece that pushes in the plunger) got some plastic wielder epoxy and stuck that bad boy back. so it was the neutral safety switch not being pressed in all the way. Thanks so much for the help and fast replies. PZ is the best!
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Old 05-15-2011, 09:33 PM
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Re: 91 clutch intermittently goes to the floor to crank car.

Good to hear. Now be sure to keep an eye on the clutch fluid level. The only way the clutch fluid level can go down is if there is a leak.
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