vacume lines???

[Crazythingsido2]

vacuum lines???

i took out my old air box and plugged the vacuum lines but it runs really choppy and sometimes dies. it putting out alot of smoke. what should i do???

 

[Crazythingsido2]

bump

 

[dgndngrngr]

what color is the smoke? are you burning oil or running rich or white smoke?

 

[Crazythingsido2]

its white

 

[Crazythingsido2]

bump

 

[IMenriched]

its white

White smoke is not a good indicator.

that is saying to you that you've have a cracked head on your truck....maybe...just maybe, a very low chance that it is head gasket.

the 2.9 has a propensity to crack them.....later models not so much.
World Products make a heavier replacement

 

[88broncoll]

White smoke is not a good indicator.

that is saying to you that you've have a cracked head on your truck....maybe...just maybe, a very low chance that it is head gasket.

the 2.9 has a propensity to crack them.....later models not so much.
World Products make a heavier replacement

I had a modulator valve go on mine, dumping trans fluid into the intake. Talk about white smoke.

 

[Crazythingsido2]

it only stated blowing smoke when i pulled the vacuum lines from the intake, air box, and the sensor thing

 

[Psychopete]

the sensor thing

The MAP sensor? What are you trying to do?

Pete

 

[Crazythingsido2]

i am putting in a diffrent intake on. just a k&n cone filter so the air box is taken out and i was told to plug all the lines from that at the block and i did but now its putting out white smoke

 

[Psychopete]

i am putting in a diffrent intake on. just a k&n cone filter so the air box is taken out and i was told to plug all the lines from that at the block and i did but now its putting out white smoke

I am having a difficult time telling exactly what lines you're removing without the proper terminology. From what you've described, it sounds like you removed all of the lines from the vacuum tap at the passenger side of the upper intake plenum? If this is the case, that would certainly explain why you're having issues since the MAP would be reading no vacuum (will run rich). Can you take a clear picture of what you're working with? That would be a big help.

Pete

 

[Crazythingsido2]

ok pete this is what i got

these were on the bottom of the air box which i took out

this one was on the drivers side of the intake plenum

this one was on the passenger side of the upper intake plenum and i plugged it

heres the sensor (MAP??)

all these lines were connected to the sensor or the air box, and since i removed the air box i was told to plug these at the intake
thanks i hope these help

it also sounds like its misfiring a little im gonna pull the plugs and check them and see what happens

 

[poweranger84]

the map sensor is on the firewall just to the right of the intake manifold

 

[Psychopete]

ok pete this is what i got

Ah, that is not the MAP sensor, sorry about that. It is an EGR Vacuum Regulator.

http://fordfuelinjection.com/?p=43

I've never done something like that on this year of Ranger, so you'll have to bear with me and if someone has, hopefully they'll chime in. I have done something similar on my 88, but it has no EGR and has also been converter to MAF (so I rid of that tap on the passenger side entirely with a brass plug). For being Califorina emissions, there really isn't any.

You'll need to keep it intact for correct EGR operation, and it looks like you'll need to retain the green vacuum line from the EVR to the intake.

It looks like the orange from the air box goes to the passenger side intake? This is probably fine removed, just as long as the tap is plug off completely if that is the case.

I made a small diagram of the lines by colors and I have:
EVR -> Intake (Green Line)
EVR -> Air Box (Red Line)
Intake -> Air Box (Orange Line)

The red line needs to be tapped in somewhere before the throttle plate in the throttle body. As an experiment, you could probably find a cheap piece of rubber in the plumbing department at a hardware store to test with the new intake tube so you don't ruin it (eg, cut a hole) and it doesn't work out. I imagine you could just put a cheap plastic barb in it, but install it in such a way that it cannot get sucked into the engine.

It looks like that the red line is the source of vacuum for controlling the EGR valve (from the air box to EVR). Once the computer needs EGR flow, it trips the solenoid in the EVR and the vacuum in the air box is routed through the green line.

The article above describes that the EVR will pull air from the atmosphere (I suspect the top of it, hence the "cap") which would create a vacuum leak if it were in a tap off the intake when it was closed. Basically that's air that would bypass the throttle plate, so that's why you couldn't just use a vacuum tap. But certainly does explain why they put the air source there...

And yes, this would cause runability issues. Absolutely make sure that you don't have any other vac leaks as well.

Pete

 

[Crazythingsido2]

my map sensor is on the right inner fender and it hasn't been touched.
thanks