Question about 1990 Nissan 300ZX
You've lost the integrity of the clutch hydraulic system. Chances are that either there is air in the system, the slave cylinder or the master cylinder has failed.
First step is to bleed the clutch. See if that's a fix.
A slave cylinder is down on the transmission and is relatively easy to change (only two mounting bolts, one hard hydraulic line, and an accordion-boot covered plunger). When it's changed out, the clutch needs to be bled afterward. If it's a clutch master cylinder, that's where the clutch fluid reservoir is underhood (next to the brake fluid reservoir, just to the right as you face the front of the car). Removal requires undoing the lines coming out of the cylinder, removal of the locating/mounting bolts/studs, and disconnection of the plunger rod from the back of the clutch pedal, way up under the dash. Once it's replaced, bleeding the system is required, and you also may have to adjust the pick-up point of the clutch by turning the nuts on the plunger rod - it only takes a slight turn to change the pickup point dramatically, so go slow with that.
I'd do the slave cylinder first - it's more easily accessible, significantly less expensive, and quicker to change. If it's not a fix, don't feel too badly about changing it since it's only about a $25 part and it is prone to failure, so at the very least, you've eliminated a potential problem down the road. If the slave is not a fix, I'd change the master.
Posted on Jul 27, 2008
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Jul 01, 2011 | Ford Ranger Cars & Trucks
Nov 16, 2010 | Ford Lincoln Continental Cars & Trucks
Nov 19, 2009 | 1993 Ford F150 SuperCab
Sep 02, 2009 | 1990 Nissan 300ZX
Jun 30, 2009 | 1991 Mercedes-Benz 300 Diesel
Mar 02, 2009 | 1990 Nissan 300ZX
748 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: