Question about 1990 Nissan 300ZX

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Clutch fluid is leaking inside of the car 240sx

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  • thisisfernan Dec 19, 2008

    located by the clutch out of a black rubber ring , and yes its inside the car driver side ,,i do belive its from the master cylinder

  • Daniel Arellano
    Daniel Arellano May 11, 2010

    is it on the floor near the drivers side ?

  • yadayada
    yadayada May 11, 2010

    Is it from the clutch master cylinder?

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  • 40 Answers

You need to rebuild the seals in the cluth master cylinder. The seal around the pedal shaft that actuates the clutch is leaking fluid past the seal and onto the shaft connected to the pedal, inside the cabin. 
A good parts store should be able to get you a seal rebuild kit, or remove the cylinder and bring it to a clutch shop or Nissan dealer and have them rebuild it for you. This is cheaper than dropping the car off and having them do all of the work. 
Dismantling the master cylinder, replacing the seals, filling the system with fresh fluid and bleeding it should solve your problem. Be sure to replace all of the seals at one time, and don't be tempted to only replace the one that is leaking at the moment. They should all be the same age to last without further leaking. Otherwise you'll be chasing a series of problems with your clutch as the other old seals fail over time.
Hope this helps.

Posted on Dec 28, 2008

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Related Questions:

1 Answer

Where is my slave on a 89 240sx


It is on the side of your transmission! If it isnt leaking fluid anywhere, More than likely your clutch is worn out!

Apr 06, 2012 | 1993 Nissan 240SX

2 Answers

I have a 1991 jeep wrangler the clutch fluid keeps getting real low


clutch fluid level droppin means that ur clutch master cylinder is leaking,u can check by looking inside car where pushrod goes thru firewall to see if its wet with brake fluid where rod comes thru wall inside car, a wet ,stained carpet.the other possibility is ur clutch slave cylinder located at side of ur transmission,usually drvr side is leaking fluid.if this is the case u will notice clear brake fluid at the bottom center of ur trans,right where it butts up towards ur engine. anyhow its a good idea to replace both pieces at same time to avoid any further issues with clutch pedal. good luck hope this helps

May 01, 2011 | 1991 Jeep Wrangler

1 Answer

Its a 1989 nissan 240sx its out of fluid on the clutch resivor. will adding fluid bring the pedal back to operating?


If with brakes, your fluid is low, this is usually an indication you need to replace the pads/shoes or you have another problem, possibly a leak, the same goes for hydralic clutch systems. You should never have to add brake or clutch fluid.

You can add fluid the the clutch master cylinder but if it is completely empty you will probably need to bleed the slave cylinder. You need to check for any leaks and also you might be on the verge of a clutch replacement. I cant see the car so I am giving you general info.

Mar 13, 2011 | Nissan 240SX Cars & Trucks

1 Answer

My clutch goes to the floor and I cant shift into gear. I checked the fluid and it is fine. does this mean I have to replace the clutch? where is the cable? How would I fix this myself?


The cable may need to be replaced or adjusted. Or if it is a hydraulic clutch check the master and slave cylinders for leaks or defects. If you have a cable clutch you will see the cable on the drivers side firewall and you can follow it down to the fork at the transmission.

Dec 30, 2010 | 1993 Nissan 240SX

1 Answer

My hydrolic clutch has just been repaired all new from master cylender to plate but will not stay bled for more then bout 50 miles what could the problem be


can you see leaking hydraulic fluid anywhere? The principle is very simple The master cylinder behaves like a syringe. You press the clutch pedal and fluid is forced by the master cylinder plunger to the slave cylinder mounted on the side of the gear box. The slave cylinder is like a syringe in reverse so that the fluid pushed into it from the master cylinder causes the plunger to extend into the clutch/flywheel bell housing and engage with the end of the clutch bearing release lever. The slave cylinder has a bleed screw on the top of it to release any air that has got into the system. Ensure that reservoir is full and ensure that a sheet of polythene has not been left under the screwed on cap: sometimes done to prevent excessive fluid loss whilst working on hydraulic systems. Make sure that the hydraulic unions at the master and slave cylinders are nice and tight. make sure all bled points are similarly tight. The only possible remaining places for air ingress (and by default fluid egress) are the cylinder fluid seals on the pistons... get under and look for leaks when you can get a colleague to pump the clutch repeatedly

Apr 24, 2010 | 1993 Nissan 240SX

1 Answer

1993 240 nissan clutch pedal acts like it has no fluid


Check if the slave cylinder is being activated by the operation of the master cylinder (also ensure no fluid leaks are present).
If slave cylinder not moved, you still have a faulty master cylinder or slave cylinder - or the hydraulic system still has air.

If the slave cylinder is operating normally and there is still no return pressure from the clutch pressure plate, you have a faulty pressure plate or throughout lever mechanism.

Aug 12, 2009 | 1993 Nissan 240SX

1 Answer

The clutch pedal if touching the floor and it has a difficult time shifting to any gear!


its either the clutch master or the slave cylinder. Or maybe a leak in the fluid. Check for leaks and bleed it maybe theres air in the line

May 31, 2009 | 1989 Nissan 240SX

1 Answer

Fluid is leaking inside the firewall at the top of


Either there was some fluid there from the failed unit you replaced or the replacement is defective. Clean it up really well and work the clutch a few times, If new fluid appears, chances are the new one is leaking. Watch the fluid level...Is it going down? If it is that verifies a leak.
Good luck...hope its just residue!! (I hate doing jobs twice)

Apr 09, 2009 | 1988 Chevrolet S-10

3 Answers

Good or bad thing to do


if there is a kit made for it and u are familiar with how to rebuild a hydraulic cylinder then no problem unless the cylinder bore is pitted or badly scored, in that case it is not rebuild-able. U will need a cylinder hone to do this, available at any parts store for about $10

Dec 19, 2008 | 1992 Nissan 240SX Fastback

2 Answers

Clutch or master problem?


CHECK FOR ANY LEAKS STARTING AT MASTER CYLINDER THEN CHECK SLAVE CYLINDER AT G/BOX IF OK THEN BLEED CLUTCH MASTER CYLINDER OR SLAVE CYLINDER MIGHT HAVE WORN SEALS IN THEM THOUGH SO PARTS MIGHT NEED REPLACED.

Dec 16, 2008 | 1993 Nissan 240SX

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