At 4:48 I got it wrong. The bypass valve sends air out of the system in one position, or sends air to the diverter valve in the other position. The diverter valve sends air into the exhaust system or into the catalytic converter. Also, make sure to verify which solenoid is the TAD and which is the TAB on your truck. The two solenoids are mounted side by side and look the same. (Linked photo in reply below)
Good stuff. Thank you for documenting. Going through a 96 F150 and vacuum and right out of the gate have found no vacuum going to charcoal canister. Hoping the solves the occasional gas smell from gas tanks
I really hope you don’t mind me saying I love you homie!!!!!! 😂😂😂😂 You just walked me thru my 5.0 exactly. Finally found the bypass also and it’s upside down in a 1990 model. Salute🎉🎉🎉
Auto Zone or advance Auto, but be careful with the hard plastic, barbed fittings, they break easy. Also, after several of the Dorman reducers split, I went with 1/4" vacuum line at the metal vacuum tree nipples, then reduced it to 5/32" Id hose. When I put the Dorman brand rubber reducers directly on the metal vacuum tree fittings, they split after a few weeks.
@@johnd.9145 thank you for the advice. I got 4mm vacuum hose to do just as you suggested, go right from the tree. Problem I’m having is I have like 6 vacuum lines that go behind the engine and there’s a weird plug that goes into 5 more vacuum lines, then they go to the tad, tab, etc…I’m not sure if I can just run them straight over and eliminate that vacuum plug or if it’s needed.
Depends on it's function. Does your truck have the under hood sticker that shows vacuum line routing? You might want to ask the question on a F150 forum. My truck doesn't have air or cruise, so there's a minimum of vacuum lines.
@@johnd.9145 ahh ok yes mine has air and cruise both. The lines for cruise and bigger and come right off the tree. I’ll have to surf the forums some. No unfortunately I didn’t see the sticker.
At 4:48 I got it wrong. The bypass valve sends air out of the system in one position, or sends air to the diverter valve in the other position. The diverter valve sends air into the exhaust system or into the catalytic converter. Also, make sure to verify which solenoid is the TAD and which is the TAB on your truck. The two solenoids are mounted side by side and look the same. (Linked photo in reply below)
photos.app.goo.gl/mTX5xL6cCZ7dtkit6
The linked photo shows a TAB solenoid. The electrical connection keyway is in the center. On a TAD solenoid, it's to one side.
Thanks for the video John...........very helpful
@@johnd.9145 RockAuto lists the "TAD" as > Intake Manifold Runner Control Valve / Solenoid
Good stuff. Thank you for documenting. Going through a 96 F150 and vacuum and right out of the gate have found no vacuum going to charcoal canister. Hoping the solves the occasional gas smell from gas tanks
Dude you are a GODSEND, I ran into this problem today, not knowing which solenoid is what and where the lines go. This video was amazing, thanks!
Glad it helped.
I really hope you don’t mind me saying I love you homie!!!!!! 😂😂😂😂 You just walked me thru my 5.0 exactly. Finally found the bypass also and it’s upside down in a 1990 model. Salute🎉🎉🎉
Great video. . Should the TAD valve hold vacuum? I got an erratic idle I can't fix. . Put a vacuum pump on the TAD valve and it doesn't hold
GREAT WORK BROTHER
Thanks
Tengo una ford f150 1987 con esos problemas de lineas de vacio intentare hacer eso con la mia
Excellent thank you.
Where did you get the Tees and fittings from? Thanks in advance.
Auto Zone or advance Auto, but be careful with the hard plastic, barbed fittings, they break easy.
Also, after several of the Dorman reducers split, I went with 1/4" vacuum line at the metal vacuum tree nipples, then reduced it to 5/32" Id hose. When I put the Dorman brand rubber reducers directly on the metal vacuum tree fittings, they split after a few weeks.
@@johnd.9145 thank you for the advice. I got 4mm vacuum hose to do just as you suggested, go right from the tree. Problem I’m having is I have like 6 vacuum lines that go behind the engine and there’s a weird plug that goes into 5 more vacuum lines, then they go to the tad, tab, etc…I’m not sure if I can just run them straight over and eliminate that vacuum plug or if it’s needed.
Depends on it's function. Does your truck have the under hood sticker that shows vacuum line routing? You might want to ask the question on a F150 forum.
My truck doesn't have air or cruise, so there's a minimum of vacuum lines.
@@johnd.9145 ahh ok yes mine has air and cruise both. The lines for cruise and bigger and come right off the tree. I’ll have to surf the forums some. No unfortunately I didn’t see the sticker.
How much hose did you take for all that?
I think it was 25 feet. It was a small plastic spool of rubber line that the local parts store sold.
Confusing