Bootlegged
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New to the forum. Anybody know what the pressure switch looking thing above the manual primer on the left side of an 8.3 is and where to find one ? Mine leaks.
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Fuel switch above primer????
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CBR Metalworks
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That 'manual primer' is actually the fuel pump that feeds the injector pump. I am going to guess that switch is a pressure switch, but not sure it is really needed as I have one truck that it was plugged off and the switch was removed. Hopefully someone will chime in on what it is actually for.
Jim Timber
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That isn't the switch that gets tripped with the emergency kill switch on the dash is it?
Jeepsinker
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No it isn't.
Csm Davis
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Pictures would help us id what you are looking at.
Bootlegged
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any idea which tm to look at? Looked at some and didn't see anything. This sensor/switch is above the lift/transfer pump. Thanks!
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Well, I just looked at 1 of 3 parts TMs. Started out just scrolling through looking at the engine pictures.
Found this. Is this what your talking about? If it is, it's listed as a pressure transmitter(I'd guess for the oil pressure).
Curious what manuals you looked in?
Found this. Is this what your talking about? If it is, it's listed as a pressure transmitter(I'd guess for the oil pressure).
Curious what manuals you looked in?
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Jeepsinker
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I believe it is a fuel pressure sensor. Not sure why a manually injected engine needs a fuel pressure sensor, but that's what it looks like. Not all of the trucks have them.
CBR Metalworks
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The pressure switch he is talking about threads into the top of the fuel lift pump (NOT into the block). I think it is a fuel pressure switch, but have seen it disconnected/plugged/wires hanging on a few trucks with no ill effects.
Jason O
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Its the pressure transducer for the STE/ICE diagnostic tool. It has no effect on engine function. Replace it with a brass pipe plug, the threads are NPT.
Jeepsinker
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Yeah! What he said!
Gamagoat1
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Not everyone is a dumb as you'd like us to beleive DOGHEAD. If it were in the parts manuals I wouldn't have asked for help. That IS the purpose of this forum, isn't it DOGHEAD???
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Gamagoat1
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Jason O, Thank you for taking the time to give an instructive answer. You're A-OK!
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Not all of us can read minds. Had you told us what you had tried to do to identify it, it would have helped non-clairvoyants like me(help you).
If you think I posted to make you feel dumb(I did not), maybe it means something.
The purpose of this forum is to help others. You can't help others if they can't help themselves. You could have had an answer in a minute, if you had posted a picture in the first post.
I would have looked it up for you.
Gamagoat1
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My post "1991 936A2" was referred to this post. I commented, in MY post, that I didn't have a picture and hoped a gentleman like Jason O would know what I'm talking about. The manuals, all the Parts manuals of 2012, show nothing .
If you want to discuss rants, what is it you do to nearly every young kid with a new truck? Some buy these trucks not even knowing there are manuals. It wouldn't hurt to make an example of yourself and help a little...
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