ahah1999

Changed clutch on my 93 dodge D350 truck now it will not shift when running should i have put in a new Slave cylinder as well help!

Mexstan

You say that it will not shift into gear when running. Please explain; does this mean just with the engine running, or while in motion?

When stopped, can you easily shift into any gear, or is it hard to put into gear? When you do shift it into gear, does the truck jump a bit?
Can you put it into 4th or 5th?
When you push down on the clutch pedal, is there the same resistance as usual?

ahah1999

when truck is turned of it goes in all gears. when engine is running it will not. the clutch pedal has same resistance then before changing clutch

Mexstan

Not familiar with your year of truck, but presume that the slave cylinder can be seen from outside of the bell housing. Have someone push down on the clutch pedal and see how much corresponding movement there is on the shaft of the slave cylinder. Let us know how much.

Does the clutch pedal feel mushy at all? Could there be air in the system? Is the master cylinder full?

ahah1999

the pedal does feel mushy there is about 1 inch of movement.

oliver foster

I like Stan's, call of air in the the hydros. They are known to be hard to bleed.
I now buy complete hydros set ups, rather than swapping slaves, or masters.

cabtruck

If there's air in the bottom cylinder will it work its way to the top

oliver foster

Years ago when I had a new slave installed we had a really hard time getting the air out of it.
We even tried to remove it from the bell housing and hold it straight down while the truck was on the lift...After a few weeks of driving it the air seemed to work it self free.

cabtruck

Ok I thought air should go up but wasn't sure

mknittle

Mine has a bleeder on it and it still was A PITA.

edwinsmith

When I replaced my trans and clutch last April it did the same thing. Not at first but about an hour later when the wife was driving it. After fooling with it for about a half hour it sorted itself out. I think it may have been dragging and not releasing completely. The hydraulic slave is self adjusting and may have been slow to adjust.

I later replaced both the master and slave cylinders along with the line and it made no difference but it was and is working fine.

Keep pumping it and maybe it will sort itself out like mine did.

Edwin

thrashingcows

I have read that if you pump the clutch several hundred times it "should" work the air out.....seems like a lot of work to bleed the air out. I have never done this, only came across it mentioned at some point in my research years ago, so not sure if it truly works or not.