EGR
New User
Joined: Jan 2008
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EGR
Do you mean, where does the vacuum line go?
Dennis https://www.ford-trucks.com/user_gallery/sizeimage.php?&photoid=1733&.jpg
Please Don't Ask Me Any Tough Questions As:
"I'm Saving My Memory For When I Develop Alzheimer's"
78 F-150 429CJ,Silver
w/Explorer Pkge.
641/2-Mustang 260,Pre-World's Fair Car.
64-Fairlane500 S/C waiting for a 390-4spd.
68-Mustang 289-Sunlit Gold 80,892Mi
78-Buick LeSabre 403 4V
84 Volvo DL Wagon
Dennis https://www.ford-trucks.com/user_gallery/sizeimage.php?&photoid=1733&.jpg
Please Don't Ask Me Any Tough Questions As:
"I'm Saving My Memory For When I Develop Alzheimer's"
78 F-150 429CJ,Silver
w/Explorer Pkge.
641/2-Mustang 260,Pre-World's Fair Car.
64-Fairlane500 S/C waiting for a 390-4spd.
68-Mustang 289-Sunlit Gold 80,892Mi
78-Buick LeSabre 403 4V
84 Volvo DL Wagon
EGR sucks.......
Senior User
Joined: Oct 2001
Posts: 113
Likes: 0
EGR
If it is a simple ported hook up the EGR hose goes to the EGR port on the carb. This would be a vacuum port on the carb that provides no vacuum at idle and increases vacuum as you rev the motor similar to ported vacuum for distributor advance.
If you have a late 70's motor you may have a thermal EGR. That EGR hook up is something like this. You should find a 2 port vacuum valve screwed in somewhere on your intake manifold. The top port on this goes to a T. One branch of the T goes to the EGR vacuum port. The other branch of the T goes to a one way check valve and then on to the EGR vacuum port on your carb. The bottom port on that valve T's to the carb and the vacuum advance on your distributor. The valve only opens after the motor warms up which means no EGR and no timing advance unless the engine is warm.
If you have something into the 80's GOOD LUCK figuring it out, LOL.
If you have a late 70's motor you may have a thermal EGR. That EGR hook up is something like this. You should find a 2 port vacuum valve screwed in somewhere on your intake manifold. The top port on this goes to a T. One branch of the T goes to the EGR vacuum port. The other branch of the T goes to a one way check valve and then on to the EGR vacuum port on your carb. The bottom port on that valve T's to the carb and the vacuum advance on your distributor. The valve only opens after the motor warms up which means no EGR and no timing advance unless the engine is warm.
If you have something into the 80's GOOD LUCK figuring it out, LOL.
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