Transmission problem:Please help!
 

A gearbox of my friend's '93 ZR-1 did not work definitely.
He can't put it in First gear and second gear.About this problem, the solenoid which controlled 1 to 4 of the gearbox regarded us as a cause.
However, I do not think that He can't send Gear to first and second, because a solenoid breaks down. I thought that I might be due elsewhere.
I thought about whether it would not be the serious trouble in more gearboxes.

I looked for the thread about this problem, but I was not able to find it.

Please please help to solve this problem.

Re: Transmission problem:Please help!
 

It is difficult to understand the problem.
I doubt the 1 to 4 solenoid is the problem. (It is called CAGs)
Please tell me. Are the other gears shifts ok?
1 NG ?
2 NG ?
3 OK ?
4 OK ?
5 OK ?
6 OK ?

Re: Transmission problem:Please help!
 

Also does it go into reverse ok?

Re: Transmission problem:Please help!
 

Dear Mr.scottfab>

Thank you for your quick reply.

Yes.
His ZR cannot send Gear to only first gear,second gear.
And shift lever does not fall down to 1,2gates.
3,4,5,6,and reverse are all right.

1 NG
2 NG
3 OK
4 OK
5 OK
6 OK
R OK

Thanks for your help.

Kenji.

Re: Transmission problem:Please help!
 

Sounds like a bad clutch master cylinder or bad slave master cylinder.

Re: Transmission problem:Please help!
 

Check your clutch fluid ... I recently replaced both the slave & master cylinders because of a slow leak (slave was bad). If you do have a leak, consider replacing both slave & master at the same time.

George

Re: Transmission problem:Please help!
 

Order the master and slave here :

http://www.zfdoc.com/

And don't use the car untill it's fixed. If you do use the car the fix will cost much more.

Re: Transmission problem:Please help!
 

Sounds like a clutch and slave cylinder problem i would also check the oil in trans to see if there is debris or contaminants hope this helps.

Re: Transmission problem:Please help!
 

If the 1-4 solenoid stuck at 4th gear position this could cause the "shifter won't move to 1-2 gate". I (thankfully) have not had to look at that, but how hard is it to remove the solenoid?

Good luck,
- Jeff

Re: Transmission problem:Please help!
 

Kenji, I certainly agree with others you should check the master and slave cylinder as well as fluid level however, based on what you have described you may have lost the 1 & 2 gear synchro.
Unfortunately if this is true, it is not easy to fix.
I have rebuilt the ZF6 transmission before. It is doable but you must be brave and make sure you have the a 10 or 20 ton press available.
I can point you at a CD that walks you through the process if a rebuild becomes necessary.

I hope the cyclone now in Japan is not where you are.