Where does/did this connector go?
Thread Starter
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Senior User
Joined: Jan 2001
Posts: 110
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From: Central Illinois
Where does/did this connector go?
Finishing up a head job on my 92 302, and as I was reconnecting all of the 6,778,453 connectors and hoses, I noticed a 2 lead electrical connector that had been shorted with a small piece of wire and taped off. This was apparently done by the previous owner..definitely not factory workmanship. To clarify, the work done to short the connecter was obviously aftermarket...the split from the bundle looks factory.
Following the huge connector on the passenger side of the power distro box (towards the engine), it's the first connector to split off from the big bundle. I've done some looking for diagrams, and my best guess is the power steering pressure switch... I think the next connector to split off after the one in question is the AC clutch field coil.
I am not by the truck now, so I can't do the simple thing and see if there is a female counterpart near the power steering pump. Even so, I wanted to post anyway to ask why it would be shorted, regardless of where it goes. Was it maybe a trailer hookup?
thanks,
Bryan
Following the huge connector on the passenger side of the power distro box (towards the engine), it's the first connector to split off from the big bundle. I've done some looking for diagrams, and my best guess is the power steering pressure switch... I think the next connector to split off after the one in question is the AC clutch field coil.
I am not by the truck now, so I can't do the simple thing and see if there is a female counterpart near the power steering pump. Even so, I wanted to post anyway to ask why it would be shorted, regardless of where it goes. Was it maybe a trailer hookup?
thanks,
Bryan
Thread Starter
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Senior User
Joined: Jan 2001
Posts: 110
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From: Central Illinois
You mean my poetic prose didn't sufficiently weave the images in your mind? 
First, my apologies to dial-up users....these pics are big. Wanted to get the detail...
Here's the power distribution box. The huge bundle starts towards the front of the truck, then goes towards the passenger side
Here's a full view.
A close up of the splice
And a close up of the connector
thanks,
Bryan
First, my apologies to dial-up users....these pics are big. Wanted to get the detail...
Here's the power distribution box. The huge bundle starts towards the front of the truck, then goes towards the passenger side
Here's a full view.
A close up of the splice
And a close up of the connector
thanks,
Bryan
Lead Driver
Joined: Nov 2002
Posts: 9,557
Likes: 44
From: Concord, NC
I'd venture a guess that it is supposed to go to the PSPS. Mine was located in the high pressure hose just before it entered the steering box. Pull the wire out of it and pull the codes from the computer - see if 52 (or 519 if it's three digit codes) comes up.
Thread Starter
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Senior User
Joined: Jan 2001
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From: Central Illinois
So...why would he have pulled it? And what does the pressure switch do? Does it just kick off a code if the hydraulic pressure goes out of spec?
Knowing is half the battle....
Knowing is half the battle....
Lead Driver
Joined: Nov 2002
Posts: 9,557
Likes: 44
From: Concord, NC
It is supposed to tell the computer to bump idle slightly when it senses pressure. It's just an on/off switch, so it's shorted to keep the code from appearing in the computer, but it also tells the computer that pressure is always up. My old PSPS leaked, so maybe that's why he took it off, I dunno.
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Thread Starter
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Senior User
Joined: Jan 2001
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From: Central Illinois
Ahhh....okay. I looked, but admittedly not very hard, for a connecter on the pump and couldn't find one. Might he have replaced the OEM PS pump, and the replacement didn't have that sending unit? Doesn't matter really...apparently it hadn't been connected for the entire time I had it, and it doesn't sound too crucial. If I understand correctly, it just keeps the idle smoth if I am turning the wheel while idling?
thanks for all your help!
Bryan
thanks for all your help!
Bryan
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Lead Driver
Joined: Nov 2002
Posts: 9,557
Likes: 44
From: Concord, NC
It's more likely that he replaced the high pressure hose from the pump to the steering gear box. When I replaced mine, it didn't have a switch built in, but had a threaded plug you could take out and put the switch in. It's not really a sensor, it's just an on/off switch to tell the computer there is pressure on the power steering system and to bump idle slightly. It's not very critical at all, I ran without mine for several months until I got my MAF system installed. The only thing that will happen is the computer will set a code, and the idle might bog down a little if you are hard on the steering at idle while moving slow.