87 engine pictures for Gregski...and some vacuum questions...

[Chrispbrown36]

It took me a little longer than I told ya Gregski, but I finally got the pictures for you.

One with the air cleaner on. The snorkel is off but it would normally come off and run to the passenger side of the radiator.
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Now without the air cleaner.
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Close up of the throttle body. To the left you see the map sensor (light grey).
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Here you can see the pcv valve sticking up out of the passenger side valve cover.
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Here you see the driver side. Toward the rear you can see where the tube originally came out and then ran to a spacer that sits on top of the throttle body and below the air cleaner. This tube is what broke off when I was changing the valve cover gaskets. Right now I just have a short piece of vacuum line running out of the hole and sticking up.
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A few days ago I bought this breather and ran the vacuum line back to the spacer like the original piece did. I thought all was good....then I developed a horrendous oil leak. Oil was spraying all over the passenger side of the engine bay. After some reading up I decided the breather was causing excessive vacuum pressure. The breather has a spring loaded cover on the bottom that requires pressure to push it up vs. the original that was just a wide open tube. So I pulled the breather off and so far the leak is gone.
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[Chrispbrown36]

Now for the questions.

Am I correct that this is the fuel pump relay? If so, why why when I unplug it does it not kill the truck when it is running?
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Am I correct that this vacuum line is what controls the vent on the air/heat?
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If you notice that there is a dead ended vacuum line. Previously someone had said that was probably for cruise control (which was not an option on the truck). So is it ok to replace the t-fitting with an elbow? I noticed that when I unplugged it the truck seemed to idle a bit better.....what could that tell me?
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[Chrispbrown36]

And one more to show off the new seat cover I got for 15 bucks. The thing didn't fit for crap, but after some modifying and fancy tying it works for now. The original seat is in excellent condition, with only one small tear, this way I can protect it and keep my daughter and wife from burning their legs this summer. Ignore all the junk in the seat.....the only thing I miss from my 01 dodge is the center console....it made life so much easier.
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[Katrina/10]

That is the fuel pump relay, but GM designed a fail safe in case of relay failure using an oil pressure switch to operate the fuel pump. So, your stuff is working correctly.

[Chrispbrown36]

Good to know, thanks for the reply.

[Katrina/10]

You're welcome, I'm not sure about the vacuum lines, but the one that goes into the firewall should be for the air cond controls.