O Holy P

Can someone identify these 2 plugs that are taped up and not currently being used. I'm installing a/c on a non-a/c truck and need to know which is which. One I know goes to a vacuum switching valve...but not sure which one, and whatever the other one is?? This is in between the valve cover and upper intake manifold and taped out of the way by the factory.

I know where the a/c clutch power wire is...it is tied out of the way in the same manner, but that one is easily identifiable.

Erik Beeman

I'm not sure what they are, but I have that same white one on my truck that is not plugged in either. I don't know about yours, but mine comes from the harness that has the CS injector, EGR sensor, and #3 and #4 cyclinders. I'm not sure what it is, but my truck is base model and I'm guessing it's a plug for something not used. Maybe this is the A/C plug, cause my truck does not have A/C and this is the only plug not used in my harness.

iamsuperbleeder

take a picture, but back up a little bit with the angle

lookes like plugs for the VCV's on top of the valve cover

O Holy P

I have one for the EGR that is plugged in on top of the valve cover, but those 2 are tied away in that valley area by the fuel injectors. I know one of them will go to the vacuum switching valve for the A/C, but what is the other one? I'll go grab a pic further out...

O Holy P

Ok...a little further out.

iamsuperbleeder

one's definately for the AC idle-up VCV, becuase you don't have the VCV there, which is why the plug wouldn't be plugged into anything

The 2nd one being there confuses me though...

by it's position, it looks like either a fuel injector plug, or a plug to one of the temp senders facing forward on the lower intake manifold; can't tell if thei're all pluged in from the pic

O Holy P

It's never been plugged in. You can see it taped in a little folded pattern there and appears to be done by the factory (the rearward plug). Dunno...pretty sure the plug that is light gray (forward) is the one that goes to the VSV.

Erik Beeman

I see a white and a gray plug. I still don't know what they are for, but whenever you figure out the white one, will ya let me know? Lol.

O Holy P

One is light gray and the other is dark. 90% sure the lighter gray plug is the one for the VSV, which is all I need to know. No idea what the other one is for, if I find out I'll post back.

vandert

Non help here but where are you in S. florida?

I'm in Melbourne but head down that way often.

O Holy P

Live in Pompano near Lighthouse Point and work out of Ft. Lauderdale Int'l.

iamsuperbleeder

Hey I was in Pompano just this past Thurday and Friday for work; we've got a branch right on Powerline Road

O Holy P

What do you do?

I'm right in the middle of !EGR, A/C, & elec. fan swap.

iamsuperbleeder

parts manager for Florida for a crane rental company

I based out of Orlando, but I make trips to Pompano every once in a while



I wouldn't doubt it if you've seen some of our cranes running around over there