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Unread 08-01-2013, 05:44 PM   #16
scraper
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1995 YJ Wrangler 
 
Join Date: Jul 2013
Location: Minerva, Ohio
Posts: 202
And it's fixed. I ended up taking the PDC apart so I could look at the bottom of it and followed the wire back to the Ignition Switch. Turns out the "new" engine wiring harness I put in was missing part of the wire going from the the connection at the firewall to the PDC. So I broke out my old wiring harness, clipped off the old wire and spliced it in, blam the jeep now turns over.

New problem. It turns over but doesn't fire. So I checked the spark in the plugs and they are firing. So that means I have a gas problem. I'm not sure what the best way is spray some ignition helper in there to see if I can at least get it to fire?

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Unread 08-01-2013, 05:57 PM   #17
rambo3489
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1989 YJ Wrangler 
 
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Starting fluid is hard on motors. Especially new ones. I say before you go spraying stuff all over the place you should look into it some. Disconnect your fuel line where it goes into the carb or fuel rail. Get the fuel pump going and see if you have fuel there. If you do the problem is after that. If you don't have fuel its before that.

That will narrow it down. It should be mostly common sense after that.

This is all good training for when it dies on the side of the road in the middle of nowhere.
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[URL="http://www.jeepforum.com/forum/f22/my-yj-build-adventures-thread-1356941/"][SIZE="3"][B]BUILDING THE YJ MY WAY[/B][/SIZE][/URL]
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Unread 08-01-2013, 06:43 PM   #18
scraper
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Quote:
Originally Posted by rambo3489 View Post
Starting fluid is hard on motors. Especially new ones. I say before you go spraying stuff all over the place you should look into it some. Disconnect your fuel line where it goes into the carb or fuel rail. Get the fuel pump going and see if you have fuel there. If you do the problem is after that. If you don't have fuel its before that.

That will narrow it down. It should be mostly common sense after that.

This is all good training for when it dies on the side of the road in the middle of nowhere.
Disconnected the fuel line from the rail and no fuel at all. I've already replaced the fuel filter so my guess is either the fuel [pump itself or the power going to the pump. Any other thoughts?
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Unread 08-02-2013, 08:03 AM   #19
jsipe007
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1994 YJ Wrangler 
 
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Location: Reno, Nevada
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Can you hear the fuel pump prime when you turn the key on?

Congrats on figuring out the pdc wiring!
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Unread 08-02-2013, 08:28 AM   #20
scraper
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Quote:
Originally Posted by jsipe007 View Post
Can you hear the fuel pump prime when you turn the key on?

Congrats on figuring out the pdc wiring!
I'm not sure, when I get home I'm going to check the fuses for the pump and pull the power connecter off the pump to see if it is getting 12v with the ignition in. Should there only be 12v there when I'm cranking the engine or is it there with just the key in the power position?
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Unread 08-02-2013, 11:38 PM   #21
rambo3489
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Pump should have 12v when the key is in the "on" position as well as in the "start" position.

Sent from my phone because I'm doing something "more important"
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89 YJ.. My first jeep and I won't let it go. ▀||||▀

Current Project: None... I disgust myself.

[URL="http://www.jeepforum.com/forum/f22/my-yj-build-adventures-thread-1356941/"][SIZE="3"][B]BUILDING THE YJ MY WAY[/B][/SIZE][/URL]
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Unread 08-04-2013, 02:16 PM   #22
scraper
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So I ended up having to drop the tank. Thinking it was just a bad pump this is what I found.



I can't believe how bad it is, but I guess that's what happens when it sits for several years. Pulling the tank ended up being harder than it should have since 3 of the bolts where in such bad shape that I had to cut them off, which was a bit nerve racking being right next to the gas. I also had to cut 5 of the 8 bolts off that held the sending unit on. Now to buy the sending unit and put everything back together.
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Unread 08-05-2013, 08:20 AM   #23
jsipe007
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1994 YJ Wrangler 
 
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Awesome! Glad to hear you have everything figured out so far. Im with ya, I hate letting vehicles sit but i would never have guessed your fuel pump would be that bad!
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Unread 08-09-2013, 11:09 AM   #24
scraper
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Thought I would update this thread.

I ended ebaying the sending unit with a pump for $119. Thought that was good. While I waited on that to arrive I sanded down the skid plate and repainted it. It really needed it and all I'm really doing with that is buying time, as it will need replaced eventually. I also replaced all the bolts and nuts with stainless steal ones.

Once it was all hooked back up the Jeep fired right up and idles really well. The next problem to surface was the throttle. It was stuck in place and I couldn't rev the engine at all. So I opened it up, sprayed it with some PB Blaster, move it around by hand a whole bunch and now it is good.

So of course it can't end on a happy note, now my brake system is bad. So I started a whole new thread for that.
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