Ahhhh my C-4 Modulator Blew out the back of the Tranny

[JeepGuy]

HELP:-[ I finally got the brakes hooked up and went to test them out. I heard a loud pop and then the sound of fluid running down. I looked down through the missing tunnel cover and saw the Modulator sitting on the ground. The rod/valve came out with it. I didn't see any screrw or anything else. Why would this happen? Is it possible that I'm missing something that holds it in the tranny? And last but not least, what do I do now??????

 

[72_EB]

Bummer. You need the clip that holds it in. I'll go out and snap some pictures of mine.

 

[72_EB]

Homebrew flatstock and factory clips.

 

[JeepGuy]

Oh man. Yeah that looks like it would do the trick. Now I have to go find one. How do you put it back in?

 

[BwoncoHowie]

Oh man. Yeah that looks like it would do the trick. Now I have to go find one. How do you put it back in?

A C-5 retainer clip will work also as it is the same thing, so remember this when you are searching the boneyard. This clip is also made from spring steel and is very stiff but will allow easy tightening of the bolt.

Install the valve large diameter end goes in the bore first and push it in all the way till it stops. Then install the rod in the modulator before putting the modulator back in the trans, the forward end of the rod (or so called modulator pin) will nest in a socket in the tail end of the valve.

 

[JeepGuy]

Like this?

Ok so if the tranny is to the right in the picture then this is how it goes in..... right??;D

 

[BwoncoHowie]

Ok so if the tranny is to the right in the picture then this is how it goes in..... right??;D

Ding Ding Ding Ding ! Yup! thats right!

Johnny, Tell jeep guy what he has won! ...
;D

 

[JeepGuy]

Cool thanks for the help guys.

 

[JeepGuy]

Question..... Does anybody sell the factory or aftermarket Modulator retainer? I'm very strapped for time and honestly dont have the time to measure cut, grind...... and I definately dont have the time to go hunting around a pick a part. Anybody know if they are sold?

 

[Pa PITT]

I dought it when I had my part store I had no straps ...wrecking yard ...Hey Just in case you buy a new modulator valve be sure you get one with the same color ring on them ...If I remember correctly there was about 3 different ones..dont mix and match ..

 

[BwoncoHowie]

Question..... Does anybody sell the factory or aftermarket Modulator retainer? I'm very strapped for time and honestly dont have the time to measure cut, grind...... and I definately dont have the time to go hunting around a pick a part. Anybody know if they are sold?

Nope, not even the dealer has these. Wrecking yard is the place, and a C-5 retainer from your later model trans of the same family will work as well.