easy PCV valve question - Pirate4x4.Com : 4x4 and Off-Road Forum

waternut · 08-18-2005, 03:17 PM

I have an 86 bronco II with the 2.9 and after getting it started since sitting for a while, I noticed it was running rough, and noisier then I remember. So I located the noise and it was coming from the top of the PCV, as soon as put my finger over the whole on the top of the valve the noise went away and the engine purred like a kitten. My vacuum diagram shows there is is suppossed to be a line from the TB to the PCV but I can't find it. There is a large line connected to the base of the valve that gets manifold vacuum but this connection on top of the valve is small, maybe 1/4" I cannot find anything missing on the TB and wanted to know if a rubber plug/ cap on the PCV valve will fix my idle / noise problem. Any help would be appreciated. and yes I already tried looking over at the ranger station. Thanks in advance.

Chris

austynn2001 · 08-18-2005, 05:54 PM

The other hole should be plugged. Every PCV valve I've seen comes through with a plug on one of the holes.

waternut · 08-19-2005, 08:30 AM

thank you sir!

08-18-2005, 03:17 PM	#1 (permalink)
waternut Registered User Join Date: Aug 2003 Member # 21805 Location: Rockledge FL Posts: 101	easy PCV valve question I have an 86 bronco II with the 2.9 and after getting it started since sitting for a while, I noticed it was running rough, and noisier then I remember. So I located the noise and it was coming from the top of the PCV, as soon as put my finger over the whole on the top of the valve the noise went away and the engine purred like a kitten. My vacuum diagram shows there is is suppossed to be a line from the TB to the PCV but I can't find it. There is a large line connected to the base of the valve that gets manifold vacuum but this connection on top of the valve is small, maybe 1/4" I cannot find anything missing on the TB and wanted to know if a rubber plug/ cap on the PCV valve will fix my idle / noise problem. Any help would be appreciated. and yes I already tried looking over at the ranger station. Thanks in advance. Chris __________________ quote: It's all good, I call it gravity assisted naturally inspired oil changing/recirculation. Mine did the same thing until my wife got tired of seein' it on the driveway.

08-18-2005, 05:54 PM	#2 (permalink)
austynn2001 Registered User Join Date: Feb 2004 Member # 27587 Location: VT Posts: 165	The other hole should be plugged. Every PCV valve I've seen comes through with a plug on one of the holes. __________________ Subaru!

08-19-2005, 08:30 AM	#3 (permalink)
waternut Registered User Join Date: Aug 2003 Member # 21805 Location: Rockledge FL Posts: 101	thank you sir! __________________ quote: It's all good, I call it gravity assisted naturally inspired oil changing/recirculation. Mine did the same thing until my wife got tired of seein' it on the driveway.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode