Vacuum nightmare - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 08-19-2016
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Location: Weatherford, Texas
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Vacuum nightmare

I'm putting a 1994 Ranger 3.0 back together after someone else had taken it apart. I have a Chilton's, have thoroughly searched Google, and even vacuum diagrams have been of little help. If anyone has, or has access to, this era of 3.0 Ranger, some pictures of all of the vacuum routing and the components that they connect to would be a massive help. If anyone can help me, it would be so greatly appreciated.
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Old 08-19-2016
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Join Date: Jul 2016
Location: BC Canada
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There should be a little vacuum diagram on the front of the truck, just at the top of the rad.

Here's my diagram from another post.

1999 B3000 - Slight Jerking While Driving

The ones in heavy black are the main vacuum lines and are colour coded, at least on my truck.
What isn't shown is the one that goes to the dash, it runs over top of the exhaust manifold on the passengers side.

Do you have the vacuum harness that came with the truck, if you don't you will have to get one ?
There is a port of the back of the upper intake manifold that the harness connects to on the drivers side.

I'll be taking mine apart today and tomorrow, so I can take some photo's, but it won't be right this second.
We're 5 years apart, but it should still be about the same or enough to get you started if someone else doesn't post.

Also, don't confuse the DPFE sensor lines with the vacuum lines, the lines from the EGR tube to the sensor have noting to do with the vacuum line harness.
The lines to the DPFE sensor are made of silicon (so it looks like).

Last edited by Jeff R 1; 08-19-2016 at 08:48 AM.
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Old 08-19-2016
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Join Date: Jul 2016
Location: BC Canada
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Here's my YouTube video, it was quicker then taking a whack of pictures.
It's kind of crumby, but it gets the job done, it's just made with a cheap camera from Walmart.

https://www.youtube.com/watch?v=qoL3...ature=youtu.be

And the device in the video that I couldn't think of the name of on the fuel rail is the "fuel dampener"
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