My 5.3L into a Jeep Wrangler

[1BADC10]

As long as you have electric gauges, this&#39;ll be easy as &#036;2 drunken hooker on a busy Saturday night... <--- not that I know ANYTHING about that&#33;

[Chuck21387]

<div class='quotetop'>QUOTE(1BADC10 &#064; Jun 30 2007, 07&#58;20 AM) [snapback]98177[/snapback]</div>

As long as you have electric gauges, this&#39;ll be easy as &#036;2 drunken hooker on a busy Saturday night... <--- not that I know ANYTHING about that&#33;
[/b]

So....how do i do this?


And what&#39;s the coolant line (1/4") that goes to the bottom and top of the throttle body? can i cap that off?

[RedHeartbeat]

That goes to the cylinder head air bleed for the coolant. Most guys bypass the throttle body preheat tube(what your talking about) and return it back to the coolant stream. Mine is returned to a tapped hole near one of the heater hose connections on the water pump.

[Chuck21387]

<div class='quotetop'>QUOTE(RedHeartbeat &#064; Jun 30 2007, 04&#58;12 PM) [snapback]98216[/snapback]</div>

That goes to the cylinder head air bleed for the coolant. Most guys bypass the throttle body preheat tube(what your talking about) and return it back to the coolant stream. Mine is returned to a tapped hole near one of the heater hose connections on the water pump.
[/b]

Thank you...i knew i could count on you guys&#33;&#33;

So my injectors don&#39;t seem to be opening, the motor&#39;s sat for 3 years, it fires with starting fluid, but not on fuel....how do i do the 12v to the injectors (1 at a time) trick to get them to free up? I can hear the pump turn on, and hear what sounds like fuel at the rail....maybe i&#39;ll try purging the fuel rail of air through the pressure check schrader valve.


i&#39;d still like to know the injector trick.....if there is one.

[RedHeartbeat]

12v goes straight to the injectors. You can put a momentary ground to the opposite side of the connector to fire it. You also could cut one connector off the harness and reconnect it later. Pull all the injectors off the fuel rail and feed straight fuel injector cleaner into the injector as you fire it by hooking 12v to one side of the injector and momentary ground to the other until you get a nice conical shaped pattern from the injector. I do that by placing a fuel pump in a can of cleaner, running a rubber hose from the pump to the injector and catch the spray in a seperate container. I know, sounds cheesy but it works.

[Chuck21387]

<div class='quotetop'>QUOTE(RedHeartbeat &#064; Jun 30 2007, 11&#58;31 PM) [snapback]98246[/snapback]</div>

12v goes straight to the injectors. You can put a momentary ground to the opposite side of the connector to fire it. You also could cut one connector off the harness and reconnect it later. Pull all the injectors off the fuel rail and feed straight fuel injector cleaner into the injector as you fire it by hooking 12v to one side of the injector and momentary ground to the other until you get a nice conical shaped pattern from the injector. I do that by placing a fuel pump in a can of cleaner, running a rubber hose from the pump to the injector and catch the spray in a seperate container. I know, sounds cheesy but it works.
[/b]

So....i thihk i&#39;ll try the first option....then the second....cause the first might not work right? hehehe....thanks&#33;&#33;

[Chuck21387]

I&#39;ve still got no fire on gasoline....are there any "easy" checks i can do to see if the injectors are working? Or should i just pull the fuel rails and check em that way?


thanks in advance

[RedHeartbeat]

question 1... is there fuel pressure, 50 psi, at the fuel rail when you attemp to start it.
question 2... is there 12v going to the injectors when the key switch is in the "ON" position.
question 3... has the VATS been disabled in the PCM

[Chuck21387]

<div class='quotetop'>QUOTE(RedHeartbeat &#064; Jul 2 2007, 07&#58;22 AM) [snapback]98344[/snapback]</div>

question 1... is there fuel pressure, 50 psi, at the fuel rail when you attemp to tstart it.
question 2... is there 12v going to the injectors when the key switch is in the "ON" position.
question 3... has the VATS been disabled in the PCM
[/b]

1) i don&#39;t know, i&#39;ll check it
2) i don&#39;t know i&#39;ll check it
3) Yes, Nelson had my PCM and did the tune and removed all VATS and emissions for me.

[Chuck21387]

Can i run 8.1L injectors for added horsepower? are they a direct swap in? Delphi part number 25343789