3/8th's SMC valves acting wierd

just put on 4 new 3/8th's smc valves and went to a show today when the front was stuck in the air and wouldnt dump and the rear was stuck on the ground and wouldnt raise. i switched out the solenoid and they were clicking but no movement at all. pulled them apart and messed with the diaphram and they started working for a minute and then stopped lifting all together so i got it in the air and left it and drove home. never had a problem with valves but this is the first i have used the smc's. anyone have these problems? it is not the wiring or the switches all been replaced it is in the valve. any ideas? i am stumped.thanks

Maybe a ground wire???

not a ground checked it and ran new wire still does it when it feels like it.

sounds like uve got a loose connection somewhere, id check all ur connections from ur switch box, possibly a bare wire rubbin the frame somewhere?? Ive had 3/8 smc on my daily driven s-10 for 2 years and have had awesome luck with them, should be somehting simple to fix urs, hopefully. Good luck

I am having the exact same problem with the half inch , they started doing it straight out of the box. I have checked everything that they are tellin you still not working like they should be.

same with mine bro. just pulled them out of the box, replaced my old ones with them and a million problems. I RAN ALL NEW WIRING as stated in my first post and it still does the same thing. it has to be inside the valve just wondering if there are others having the same problem wich it seems there is, and if there has been a bad batch or anything?

return them, i actually run smcs also but fuck it if they dont work return them!

Did you install them in the correct direction? They aren't bi-directional valves, are aren't most... a certain port is the 'in' port, and a certain port is the 'out' port, of which the former is stamped on the valve body. Thats what sounds like the problem to me.

Originally posted by bagginitdotcom



Did you install them in the correct direction? They aren't bi-directional valves, are aren't most... a certain port is the 'in' port, and a certain port is the 'out' port, of which the former is stamped on the valve body. Thats what sounds like the problem to me.

yes they are installed correctlly, i know how they are installed lol...and the wierd thing is they worked for a good week in the garage and then i got it out and got to the show and that was it. then they will work when they want to. i am sending them back tomorrow any one know of any 3/8th's valves that are better?

Edited: 4/16/2006 7:28:32 AM by BdydrptS10on20s

i have them.......and that problem anything close to 200 psi an they dont have the power to open took me a few days to figure out it was somethin so simple but i re ran wires it wouldnt work then i jus let it sit for a few days then they worked only cuz my tank leaked a bit an dropped the pressure