Allison 5sp: stupid ppe stage 4 question

[borge]

Hi. Sorry if the english is bad. But im from norway.
Just built my transmisson. with a ppe stage 4 kit and a tripple clutch converter.

But i have a problem cause the ppe stage 4 instruction sucks.
And was wondering about the c1 clutches. are the fricton supposed to head
Against the engine or rear axle?

In the instructions it says to put the frictions against the engine and so i did
Then put tranny back inn startet up. And so the truck goes in to gear
Reverse works. But when i put in drive. It goes in gear for about 10 seconds then jump to neutral.

So i checked instructions again and inn the pictures itt looked like the c1 clutc was supposed to be the other way. I pulled the tranny again. Turned the c1 clutch. And put it back inn.

And i still have the same problem. Tranny jumps to neutral and says range shift inhibited. And i got check engine light and a p0872 code.
Then i changed the NSBU with no luck. Also opened the valve house again and cleaned eveything one more time. Including a xtra check off the E valve. And all the solenoids.
And still no luck.

So hopeing someone can tell what way the c1 clutch are supposed to be. And if that could be the problem. Or somthing else.
Has also checked the wiring and plugs

Its a 2003 silverado lb7 2500hd with allison 1000 tranny

 

[05_LLY]

That's a fluid pressure code, id start with proper fluid level ( how much fluid did you add after installation?,,,,,,,also possible cause torn or outta place o ring on pressure switch ( blue pork chop lookin thing on bottom of valve body),or loose pan filter? There a few other things it could be but these are easy to start checks! are All three speed sensors plugged in, 2 on trans 1 in transfer case?

Clutch pack should be friction towards engine starting with a external spline, ending with a internal spline

 

[Mike L.]

Stuck E shift valve.

The C1 clutches can be stacked either way.

 

[borge]

Okay thanks for answering guess i Just have to take out the valvehouse again then. The pressure switch was fine. Also the ohm was correct the last time i opened it.
Okay mike l. But after i turned them. The tranny makes av weird scratching noise. Tougth Maybe it was from the c1 clutches. Being the wrong way

 

[IOWA LLY]

The C1 clutches can be installed either direction just like Mike said. However, they must be stacked correctly!!

You have to start with an inner spline C1 if you stacking them "friction up".

And you must end with an inner spline C1 if stacking "friction down".



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[borge]

Okay. So at least the c1 clutch is okay then:thumb:

Guess i Just have to check the valvehouse again then.

You think a stuck er valve Can cause the range shift inhibited?
When i put the car inn 123 or drive it still says Neutral on the edge display.
And it goes wery hard in gear for about 5-10 seconds. And then it jumps out of gear. And the dash says range shift inhibited

 

[borge]

Okay. So i had the valvebody out yesterday. And the e valve was stuck again. Cleaned everything and put back together. And still same problem.
Is it posible to Maybe polish the e valve or something.
Or Will that Just make it worse whit more clearence Maybe?

 

[mike diesel]

Don't polish the valve. You'll ruin it. Sunnex makes a reamer and new valve with a stiffer spring. Probably what you'll end up need to do.

 

[JoshH]

Don't touch the valve!

 

[borge]

Hehe okay. Thats What i thought. Any og you guys noe if its posible to use one of the old Springs i have left after the shift kit?

My problem is if i have to order parts. It takes about 2 - 3 weeks before i get it. And its not fun to wait that Long. When imidlertid not sure if its the problem.

 

[pizza pig]

Hehe okay. Thats What i thought. Any og you guys noe if its posible to use one of the old Springs i have left after the shift kit?

My problem is if i have to order parts. It takes about 2 - 3 weeks before i get it. And its not fun to wait that Long. When imidlertid not sure if its the problem.

Unfortunately it seems as if you don't have much choice but to order the parts.

 

[IOWA LLY]

For now try this,

Take a piece of 1/4" brake lines. Cut a slot in the end. Insert a piece of emery cloth into the slot. Chuck the brake line up into a drill. Coat the emery cloth with atf or something similar. WD40 works well also.

Then use that to Polish the bore of the valvebody until the valve slides in and out of the bore effortlessly.

You can also assemble the valve body on the bench without the spring installed and make sure that when the 2 halves are torqued together that it will still move from one end to the other of the bore.

I read somewhere that placing the valve body in the freezer is another good way to test for a sticking valve. I have never done that however so I can't comment if it works or not.

Another thing to be cautious of is over torquing the valve body bolts. Spec is 9 ft/lbs. I always go 8. And have ran as little as 7 on a valve body that was prone to sticking.

I have fixed quite a few of these. But there is one under my bench right now that no matter what I try it hangs up when the fluid gets up to temp. So you may or may not be successful. But it's worth a try.

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[borge]

Finaly the car works:happy2:

Thanks for all the help and tips. Always good to talk to someone.
who has done it av couple times before.
The next time im in the U.S i buy you all av round off beer :thumb:

So after taking out the valvebody yet another time. The e valve was not sticking this time.

So i startede thinking it might be an elecktrical problem. Checked the wiring diagram. And everything was right. But i change the engine and turbine sensor Just for fun
si Celine its posible. Fired up. And everything works perfect. So Maybe wrong Color on mye wires. Dont know dont care. It workshop now

But i got one last question since its mye first build.

Is it any Kind off break inn with New built tranny?
Should Maby drive XX.XXX amount off miles and change oil and filter again when the clutches have sett. Or Can i drive asheim normal and hammer down on the trotle like i want to ?

 

[IOWA LLY]

Since you just rebuilt it you should reset the taps and do a re-learn. Slowly work your way up on throttle position until it's shifting smoothly from low throttle to wide open. At that point I change the spin on filter and send them on there way.

Everyone has a different method though it seems......

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[borge]

Okay thank you. Sounds good to me