clutch soft when cold and stiff when warm up
#1
Honda-Tech Member
Thread Starter
clutch soft when cold and stiff when warm up
94 honda civic cx
d16a motor with t3/t4 turbo
this recently just happen, when i first turn on my motor the clutch is very soft and short. it will bite and take off almost instantly and will be like that until my car is warmed up and been driven around for a while and the clutch pedal slowly goes back to normal where its stiff and bites at a higher distance. what could be wrong?
d16a motor with t3/t4 turbo
this recently just happen, when i first turn on my motor the clutch is very soft and short. it will bite and take off almost instantly and will be like that until my car is warmed up and been driven around for a while and the clutch pedal slowly goes back to normal where its stiff and bites at a higher distance. what could be wrong?
#4
check ur clutch master cylinder. check ur clutch fluid, check ur slave cylinder. vacuum is accumulated when car is warm thus allowing ur clutch to accumulate more pressure/stiffness/rigidity.
#5
Honda-Tech Member
Thread Starter
i check my clutch master cylinder and there was no fluid. i filled it up. pump drove around, got stiff. but when car is cold again the softness comes back. so overall a vacuum leak might cause this?
#6
Honda-Tech Member
Join Date: Jan 2007
Location: Arvada, Co, USA
Posts: 217
Likes: 0
Received 0 Likes
on
0 Posts
Re: (lv6l)
Sounds like your master or slave is going out, what happens is that the seal inside the master or slave will shink up when it's cold and let a little fluid pass by. When it get warmed up, the seal expands back out, and it seals properly.
BTW, the hydrolics for the clutch release system are NOT vacuum boosted like the brakes, so engine speed has nothing to do with it. It's a VERY simple system.
BTW, the hydrolics for the clutch release system are NOT vacuum boosted like the brakes, so engine speed has nothing to do with it. It's a VERY simple system.
#7
Honda-Tech Member
Thread Starter
yeah i thought the clutch master cylinder has no vacuum but when some guys start telling me my vacuum can be related i started to give it a second thought. but so you guys think it could be my clutch master?
Trending Topics
#8
Re: (lv6l)
if you don't have a ss clutch line, its worth looking into. I believe there is no expanding in the material compared to the standard silicone line, giving the clutch the same level of resistance, all of the time.
#11
Junior Member
Join Date: Jan 2003
Location: Pomona, Ca
Posts: 482
Likes: 0
Received 0 Likes
on
0 Posts
Re: (lv6l)
im having the same problem. Did you figure it out?
i've bled my line repeatedly. my master cylinder shows no signs of leaks. shifts fine but gets annoying in traffic, since the pedal gets real stiff and engagements at the top of the clutch pedal travel.
i've bled my line repeatedly. my master cylinder shows no signs of leaks. shifts fine but gets annoying in traffic, since the pedal gets real stiff and engagements at the top of the clutch pedal travel.
#12
Unceasing Measure
Re: (perseverance)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by perseverance »</TD></TR><TR><TD CLASS="quote">check ur clutch master cylinder. check ur clutch fluid, check ur slave cylinder. vacuum is accumulated when car is warm thus allowing ur clutch to accumulate more pressure/stiffness/rigidity.</TD></TR></TABLE>
The clutch system has nothing to do with vacuum, noob
Sounds like the master's FUBAR to me. Seals warm up after a while and allow for easier movement, etc.
Truly, you only have a few parts in the system that can go bad and cause the kinds of symptoms you're describing:
1.) clutch pedal (extremely unlikely and wouldn't make any sense)
2.) clutch master cylinder
3.) clutch slave cylinder
4.) clutch fork (extremely unlikely as most everything else would kerplode first)
5.) clutch pressure plate (it happens, but not often with stock-ish applications)
The clutch system has nothing to do with vacuum, noob
Sounds like the master's FUBAR to me. Seals warm up after a while and allow for easier movement, etc.
Truly, you only have a few parts in the system that can go bad and cause the kinds of symptoms you're describing:
1.) clutch pedal (extremely unlikely and wouldn't make any sense)
2.) clutch master cylinder
3.) clutch slave cylinder
4.) clutch fork (extremely unlikely as most everything else would kerplode first)
5.) clutch pressure plate (it happens, but not often with stock-ish applications)
Thread
Thread Starter
Forum
Replies
Last Post