ZF 6-Speed

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Jan 8, 2002 | 10:40 PM

YellowC4

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From: Miami Fl

ZF 6-Speed

It doesn't let me shift to any gear when its cold does any body know what to do I changed my fluid last month

Jan 8, 2002 | 10:59 PM

MarkBychowski

Melting Slicks

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From: Austin, TX

Re: ZF 6-Speed (YellowC4)

What type of fluid did you use? I've used both the factory fill and Castrol synthetic with no such problems.

You can also try bleeding/replacing the clutch fluid. This could certainly cause problems getting it into gear. The procedure is pretty simple. I've seen a few posts, so if you do a search, I'm sure you'll find it. You should really do this once a year, but hardly anyone does.

Jan 8, 2002 | 11:01 PM

dizwiz24

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From: NEwhere Ohio

Re: ZF 6-Speed (YellowC4)

Is your clutch in good shape? Sometimes the gearshift becomes more notchy and less smooth when the clutch starts to wear

Jan 8, 2002 | 11:15 PM

YellowC4

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From: Miami Fl

Re: ZF 6-Speed (dizwiz24)

I put the GM fluid It does when its cold only the clutch is good it doesn't slip or anything

[Modified by YellowC4, 10:18 PM 1/8/2002]

Jan 8, 2002 | 11:42 PM

Ikester

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From: Whippany NJ

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St. Jude Donor '08-'09

NCM Sinkhole Donor

Re: ZF 6-Speed (YellowC4)

Mine does that somewhat. I can stil go in gear but its an extra effort when its really cold. Sounds like the hydraulic fluid needs some warming up first.

Jan 9, 2002 | 12:49 AM

Hurricane_777

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Joined: Jun 2001

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From: 7th Floor Crew

Re: ZF 6-Speed (YellowC4)

I've had the same problem with mine. I socialized the issue a while back, and many thought it could be a problem with the flywheel. I haven't driven the car since as it's been in the shop, so I haven't had a chance to investigate as of yet.

Jan 9, 2002 | 01:52 PM

splochocki

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Re: ZF 6-Speed (YellowC4)

My mom had the same problem just 2 weeks ago. It wasn't on a vette but the slave cylinder was the problem. This might be something to look into.

Jan 9, 2002 | 06:43 PM

Dr. Doom

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Re: ZF 6-Speed (eamador11)

Quote:

Mine does that somewhat. I can stil go in gear but its an extra effort when its really cold. Sounds like the hydraulic fluid needs some warming up first.

I feel your pain, man. As someone said earlier, your clutch is not engaging all the way. It doesn't matter if you "notice" it slipping or not, it is not releasing enough to go into gear. You may be low on fluid for your clutch. Have you checked it? Mine has been leaking for about a year now and when it gets low I experience the same problem. However, now the clutch is very worn and I can feel it slipping. So, I am going to replace the clutch and both of the hydraulic cylinders. How many miles on your car? Anyway, pray that it is only the clutch. The clutch is far less expensive than the ZF6.