I’ve Been trouble shooting 1994 ford ranger and found out crankcase vent tube wasn’t connected

Personalmine33_183556
Thu, 19 Jun 2025 02:37:11 +0000
Maintenance/Repairs

I have a 1994 ford ranger v6 3.0 xl and have been having an issue every so often where my throttle gets stuck. My rpm’s will slowly rise or stay steady when I let off the gas and shoot up if I put the clutch in but when I turn the truck off and back on it fixes it so I knew it wasn’t a stuck throttle cable. So I cleaned the throttle body and IAC valve put a new air filter into it and it seemed to run better but did it again once In a one week period. So I gave it another look and notice a tube from the oil fill cap was unconnected from a valve sticking out of the air intake tube. I have no idea how long this was disconnected and if I did it when cleaning the throttle body or if it was like that for a long time and was causing a huge vacuum leak. So I reconnected it. So my main questions are would have it cause serious damage driving with the vent tube disconnected and if that sounded like the cause of the issue? I haven’t had a chance to test it out. Also I was going to clean the MASS but noticed the previous owner jb welded one of bolt tops closed, and have no idea why. I will attach some photos below with the tube the MASS and what I think is the PCV valve but I’m not sure.

3 posts - 2 participants