Vacuum diagram

1979 FORD F-100
200,000 MILES • 5.0L • V8 • 2WD • AUTOMATIC
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MANUEL MILLER
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I need a vacuum diagram for the truck listed above XLT 302cc 5.0L please.
May 10, 2020 at 3:37 PM
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KASEKENNY
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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
May 10, 2020 at 4:48 PM
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MANUEL MILLER
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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.
May 10, 2020 at 5:39 PM
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MANUEL MILLER
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F106pfc4413. Has blue emissions tag on valve covers does that help.
May 10, 2020 at 6:27 PM
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DANNY L
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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-
May 10, 2020 at 7:21 PM
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MANUEL MILLER
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My truck is from my Oklahoma.
May 10, 2020 at 7:25 PM
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DANNY L
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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.
May 10, 2020 at 7:38 PM
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MANUEL MILLER
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Thank you very much. I appreciate everything you're doing to help me restore this old girl to her former glory.
May 10, 2020 at 7:57 PM
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DANNY L
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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-
May 12, 2020 at 1:57 AM
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MANUEL MILLER
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Here's the pictures of the emissions tag on valve cover.
May 12, 2020 at 9:05 AM
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MANUEL MILLER
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What exactly am I looking for?
May 12, 2020 at 11:52 AM
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DANNY L
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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-
May 12, 2020 at 4:40 PM
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MANUEL MILLER
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Sure thing I'll get the picture first thing when the sun comes up tomorrow.
May 12, 2020 at 8:28 PM
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MANUEL MILLER
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Here's the best I could get on the bend:
May 13, 2020 at 9:57 AM
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DANNY L
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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-
May 13, 2020 at 11:20 AM
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MANUEL MILLER
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I hope this is correct.
May 14, 2020 at 8:47 AM
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DANNY L
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Hello again.

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

Danny-
May 14, 2020 at 2:02 PM
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MANUEL MILLER
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Single.
May 14, 2020 at 4:55 PM
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DANNY L
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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
May 14, 2020 at 9:11 PM
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MANUEL MILLER
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I'm sorry but do you know what the abbreviations are? Like the TVS and the like. I haven't a clue only guesses.
May 14, 2020 at 9:16 PM
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MANUEL MILLER
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Or VCV.
May 14, 2020 at 9:16 PM
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MANUEL MILLER
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TVV.
I did say this is my first automotive adventure. Always loved the old trucks just never had one to restore. Now I do.
May 14, 2020 at 9:18 PM
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MANUEL MILLER
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If I have anymore things I need help with do I use this same window or do I have to open a new dialogue?
May 14, 2020 at 9:19 PM
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RENEE L
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Hello, here are the definitions you were asking for the acronyms Danny posted:

VCV Vacuum control valve
TVV Thermal vacuum valve
TVS Thermal vacuum switch

If there are any others please do not hesitate to respond to this tread.

Thank you and a great rest of your day!

Renee
Site Admin
May 16, 2020 at 12:33 PM
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MANUEL MILLER
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How do I know what size tubing to use?
May 17, 2020 at 2:23 PM
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MANUEL MILLER
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Hey guys, I wanted to say thank you for helping me get my truck started. You all have been a great help giving the old girl a new life. Thank you all so so much. I very much appreciate all the help.
May 19, 2020 at 9:02 AM
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RENEE L
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Hi Manuel,

I am so happy you got your truck started! Thank you so much for letting us know. Please come back anytime you have automotive questions and please tell a friend.

Enjoy your day!

Renee
May 19, 2020 at 10:31 AM
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DANNY L
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Hello again.

You're welcome!

The majority of the vacuum lines on your truck are 5/32 I.D. Hope this helps and thanks again for using 2CarPros. I've attached a picture below.Please feel free to use us again in the future for your automotive questions.

Danny-
May 19, 2020 at 1:11 PM