Problems since clutch change

[KentEdlund]

I had my 06 mega cab clutch changed a few months ago, at just short of 80K miles, the throwout bearing was making noise. I went back with a stock clutch. While I had it in there I asked that they change the transmission oil. When I got the truck back, and ever since, when I shift it seems like the synchronizers don't work properly. When I go from one gear to another it feels like it hits the gear hard unless I match the engine speed with the gear I'm going into. Does this sound like a clutch issue or a lubricant issue. Any ideas?

 

[GCroyle]

KELUND,



Several possibilities come to mind.



What oil did they put back into trans?



Original type self adjusting clutch is not noted for release issues. BUT Many things can happen during any clutch R&R to cause hard shifting or incomplete release. NOTE: The self adjusting clutch (assuming new, never installed) DOES NOT require any pre-installation adjustment attempts, period.



Disc splines damaged during trans stab. Inhibits disc from sliding freely on splined shaft, results in shaft still spinning, release problems.



Input shaft not cleaned up during R&R, very important.



Lack of attention to details on almost any aspect of the job.



Check hydraulic system. This set of hydro's has several connection points and they wiggle a bit, possible to ingest air. simple observation. Push pedal with finger tips only, should go crisply into create pressure mode, not ramp up slowly and feel spongy. If feels softish or spongy, try this. Remove slave cylinder with 13MM deep socket. Remove slave cylinder from trans housing, should still have plastic cap on end on pushrod. Point cylinder with the pushrod pointed down. Now you need an observer under the hood. Remove clutch master cyl cap. Carefully and SLOWLY push slave cylinder push rod in, compress fully. Observer looks for BUBBLES in fluid. Bubbles come out of port in bottom of reservoir and (important) then break the surface of the fluid. Repeat several times.



Bubbles in fluid reduce the total stroke of the slave cylinder, causing release problems.



Many times, these can be pushed out the top using this approach. Bubbles can also hide in the master cylinder body, tipping the master cylinder with the reservoir end up help get more bubbles out.



Good luck.



Gary

 

[George Cameron]

Could be a damaged pilot bearing - often overlooked.