Clutch pedal ('88 300zx) won't come off floor but clutch itself work just fine and shifts as normal

70

Asked by Jan 13, 2015 at 05:02 AM about the Nissan 300ZX

Question type: Maintenance & Repair

Clutch engages and disengages as normal and pedal action 'feels' normal while the pedal is in the 'engage-disengage' zone.
However, there is no resistance whatsoever between the 'free play' zone and where it first disengages---and the pedal will only pop back up into said ' free play' zone if I pull it with my toe.

The return assist spring is intact, installed properly (near as I can tell) and seems strong. The bracket hadn't been touched/altered (AFAIK) before this started but I have re-greased all moving parts in the pedal assembly and through the firewall just in case---with no change.

Is this a slave or master cylinder issue?
I concluded it wasn't since the clutch otherwise works just fine and all fluid levels are staying topped up.
Or am I dead wrong?

What else should I look for?

One last clue (just noticed today):
The pedal does snap back to top all by itself now and then if the heater is on long enough (we're in a cold climate up here in Canada) but I still cannot generate any resistance between the 'free play' zone and 'point of disengagement' no matter how many times I pump the pedal.

1 Answer

70

Turns out there was a small leak/crack in the slave cylinder....which resulted in a small bubble of air which, in turn, affected the flow return valve(?). I replaced the slave cylinder, bled the lines and all is back to normal.

Your Answer

Add photo

Related Questions

  • my car will only shift into gear when car is off 10 answers

    I have a 1988 nissan 300zx turbo with a manual transmission. It was driving fine until I had it sitting for a few months. Now when I turn the car on it will not shift from neutral into any gear unle...

    Nissan 300ZX

    -

    Maintenance & Repair

  • BRAKE LIGHTS WON'T TURN OFF HOW DO I FIX THIS? 6 answers

    MY 91 IS ALL ORIGINAL EVEN THE FUSES WITH 63,000 MI. I WENT TO TURN MY CAR OFF ONE DAY AND THE BRAKE LIGHTS WOULDN'T TURN OFF. WOULD JUST LIKE TO KNOW HOW TO FIX THE PROBLEM PLEASE SO I CAN DRIVE MY C...

    1991 Nissan 300ZX

    -

    Maintenance & Repair

  • Nissan 1984 300 ZX. Dash gauges - Digital 11 answers

    Okay. Have quite a number of items on the dash gauges that don't work. WHat DOES work all the time is the Tach. Speedo works when it wants to. When it's not - it reads 0. Fuel gauge doesn't work at...

    1984 Nissan 300ZX

    -

    Maintenance & Repair

  • Rough Running 23 answers

    ok so i have my 91 nissan 300zx turbo with 100,000 miles on it and im a nissan tech so i should be able to figure this out but im sumped anyways, so im wondering if anyone has any ideas? ok so my car ...

    1991 Nissan 300ZX 2 Dr Turbo Hatchback

    -

    Maintenance & Repair

  • maxima motor in 88 300 1 answer

    i have an 89 maxima automatic,will that long block bolt up to an 88 300zx mauel trans,will it fit with just the normal swap of a block,switchin manifolds over and stuff?

    1989 Nissan 300ZX

    -

    Car Customization

Search Nissan 300ZX Questions

Nissan 300ZX Experts

#1 Tom Demyan
Tom Demyan
Reputation 440
#2 Jamie Staples
Jamie Staples
Reputation 290
#3 dandyoun
dandyoun
Reputation 240
View All

Related Models For Sale

Used Nissan 350Z
72 Great Deals out of 1,238 listings starting at $2,595
Used Nissan 370Z
47 Great Deals out of 3,052 listings starting at $10,122
Used Nissan 240SX
24 listings
Used Ford Mustang
474 Great Deals out of 45,735 listings starting at $1,999
Used Toyota Supra
43 listings starting at $63,800
Used Nissan GT-R
537 listings starting at $52,987
Used Chevrolet Camaro
226 Great Deals out of 30,943 listings starting at $1,217
Used Chevrolet Corvette
119 Great Deals out of 20,753 listings starting at $3,000
Used BMW 3 Series
971 Great Deals out of 31,729 listings starting at $1,000
Used Mitsubishi Lancer Evolution
17 Great Deals out of 483 listings starting at $10,950
Used INFINITI G35
99 Great Deals out of 3,184 listings starting at $2,000
Used Nissan 200SX
14 listings
Used BMW M3
45 Great Deals out of 1,517 listings starting at $5,800

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.