300ZX (Z31) Forums Dedicated to 84-89 ZCars otherwize known as the Z31's

Help, my car is messed up!

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Old Jul 4, 2008 | 08:13 PM
  #1  
Sweets's Avatar
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Usedta be Justin260z
 
Joined: Jan 2007
Posts: 722
From: Oklahoma City
Help, my car is messed up!

So i am just driving along and all of the sudden all my gauges stop working. I mean they dont even light up. Then as I am pulling into my driveway, my clutch pedal gets stuck on in the depressed position. I can pull the pedal up by hand, but when I barely touch it it slams back down. I dont know what it wrong with it it wont go into gear!
Old Jul 4, 2008 | 08:58 PM
  #2  
Sweets's Avatar
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Usedta be Justin260z
 
Joined: Jan 2007
Posts: 722
From: Oklahoma City
Ok, I took the master cylinder halfway out to where I can push the rod in and out. When I push it all the way in, it then moves freely in and out. I can feel the rod pushing the piston thing in, but the piston doesnt come back up for a good 30 min. and the rod feels really loose inside there. Is this normal, or do I need to replace the master cylinder?

EDIT: I just checked the digital dash power supply, and it looks good to me but I'm no electronics expert. I tried bending the prongs slightly to make sure they were all making good contact and that didnt work. It has a sticker on it saying it was rebuilt(?) by some electronics company in 2003. I'll give tham a call tomorrow. Is there anything else that could be making my gauges not work?

Last edited by Sweets; Jul 4, 2008 at 10:26 PM.
Old Jul 5, 2008 | 03:22 AM
  #3  
AZ-ZBum's Avatar
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Joined: Jan 2005
Posts: 1,396
From: Phoenix, Arizona
check the fuses. particularly the one for the rear wiper. if not, search for "wild bill". he repairs digital dashes.

replace the clutch master and slave at the same time. make sure the clutch fork is tight. and replace the damper with a brake line. see my site for details and instructions.
Old Jul 6, 2008 | 02:20 PM
  #4  
Sweets's Avatar
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Usedta be Justin260z
 
Joined: Jan 2007
Posts: 722
From: Oklahoma City
I didnt know the gauge cluster power supply was tied in with the rear wiper. Checked that fuse and it was blown, replaced it and now everything works!

Replaced the master cylinder and slave cylinder for under $40 and everything works godd as new. Thanks for the help ZBum!
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