Vacuum diagram

Tiny
MANUEL MILLER
  • MEMBER
  • 1979 FORD F-100
  • 5.0L
  • V8
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
I need a vacuum diagram for the truck listed above XLT 302cc 5.0L please.
Sunday, May 10th, 2020 AT 3:37 PM

27 Replies

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Looks like we have all the diagrams but we need some information about your vehicle because it looks like there are about 15 options of diagram for your engine. First to narrow it down, do you know if your engine is a California or Federal emissions engine or do you just know what the calibration code is for the engine. This should be labeled on a tag on the radiator support.

I attached pictures of the options. Hopefully this tag is still there. If not, we are probably going to have contact a dealer and ask them to look it up by the VIN.

Once we know the code I can send the correct diagram. Let me know if you have questions. Thanks
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Sunday, May 10th, 2020 AT 4:48 PM
Tiny
MANUEL MILLER
  • MEMBER
  • 21 POSTS
I know nothing of this trucks history except that an old man was going to the store and ran it into a ditch on his farm. There it sat for the last 20 years until I bought it for $400.00. There's no tags on radiator at all.
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Sunday, May 10th, 2020 AT 5:39 PM
Tiny
MANUEL MILLER
  • MEMBER
  • 21 POSTS
F106pfc4413. Has blue emissions tag on valve covers does that help.
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Sunday, May 10th, 2020 AT 6:27 PM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.

Here are the 7 California vacuum diagrams. They go by the calibration numbers which I've circled in red at the bottom. I've attached the pictures below.

Danny-
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Sunday, May 10th, 2020 AT 7:21 PM
Tiny
MANUEL MILLER
  • MEMBER
  • 21 POSTS
My truck is from my Oklahoma.
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Sunday, May 10th, 2020 AT 7:25 PM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.

Here are the 6 Federal vacuum hose diagrams. As before they go by the calibration number circled in red at the bottom and I've attached them below. Just something to give you to start with.I'll get back with you tomorrow after getting more info from your VIN number. Hope this helps and thanks again for using 2CarPros.
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Sunday, May 10th, 2020 AT 7:38 PM
Tiny
MANUEL MILLER
  • MEMBER
  • 21 POSTS
Thank you very much. I appreciate everything you're doing to help me restore this old girl to her former glory.
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Sunday, May 10th, 2020 AT 7:57 PM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.

Were you able to decipher any numbers off of the blue emissions decal on the valve cover? Hopefully it will have the calibration number. If not I will run your VIN number in the morning. Hope this helps and thanks again for using 2CarPros.

Danny-
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Tuesday, May 12th, 2020 AT 1:57 AM
Tiny
MANUEL MILLER
  • MEMBER
  • 21 POSTS
Here's the pictures of the emissions tag on valve cover.
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Tuesday, May 12th, 2020 AT 9:05 AM
Tiny
MANUEL MILLER
  • MEMBER
  • 21 POSTS
What exactly am I looking for?
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Tuesday, May 12th, 2020 AT 11:52 AM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.

I tried getting the Ford dealer to look up info but they can't go back that far. I've attached your picture and circled the area in red. Can you use your phone to get a better picture of the area on the curve? Hope this helps and thanks again for using 2CarPros.

Danny-
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Tuesday, May 12th, 2020 AT 4:40 PM
Tiny
MANUEL MILLER
  • MEMBER
  • 21 POSTS
Sure thing I'll get the picture first thing when the sun comes up tomorrow.
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Tuesday, May 12th, 2020 AT 8:28 PM
Tiny
MANUEL MILLER
  • MEMBER
  • 21 POSTS
Here's the best I could get on the bend:
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Wednesday, May 13th, 2020 AT 9:57 AM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.

The middle section came out well. I need the top and bottom to go by. We're getting there! I've attached the picture below and circled in red. Thanks again

Danny-
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Wednesday, May 13th, 2020 AT 11:20 AM
Tiny
MANUEL MILLER
  • MEMBER
  • 21 POSTS
I hope this is correct.
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Thursday, May 14th, 2020 AT 8:47 AM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.

Yes, that's a great photo. One last question. Does your truck have a single gas tank or dual tanks?

Danny-
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Thursday, May 14th, 2020 AT 2:02 PM
Tiny
MANUEL MILLER
  • MEMBER
  • 21 POSTS
Single.
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Thursday, May 14th, 2020 AT 4:55 PM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.

Okay, this will be your diagram for your single fuel tank- federal emissions truck. I've re attached a picture below. Hope this helps and thanks again for being patient and using 2CarPros.

Danny
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Thursday, May 14th, 2020 AT 9:11 PM
Tiny
MANUEL MILLER
  • MEMBER
  • 21 POSTS
I'm sorry but do you know what the abbreviations are? Like the TVS and the like. I haven't a clue only guesses.
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Thursday, May 14th, 2020 AT 9:16 PM
Tiny
MANUEL MILLER
  • MEMBER
  • 21 POSTS
Or VCV.
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Thursday, May 14th, 2020 AT 9:16 PM

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