Egr help.
Thread Starter
|
Laughing Gas
Joined: Jan 2012
Posts: 1,106
Likes: 25
Egr help.
My truck started to ping today at low speeds, for the first time since i bought it.
I've been up late searching the forums on pinging, and the opinion is the lack of egr.
So i realized mine isn't hooked up, its there, but no vacuum lines.
So i know i need to hook it into the thermal switch on the thermostat housing, but from where do i splice into to get vacuum?
I was thinking tap into the vacuum advance hose, would that be a OK place to start?
I've been up late searching the forums on pinging, and the opinion is the lack of egr.
So i realized mine isn't hooked up, its there, but no vacuum lines.
So i know i need to hook it into the thermal switch on the thermostat housing, but from where do i splice into to get vacuum?
I was thinking tap into the vacuum advance hose, would that be a OK place to start?
Thread Starter
|
Laughing Gas
Joined: Jan 2012
Posts: 1,106
Likes: 25
Do I have to route the vacuum lines just like the diagram to make it work right?
Or can I just tap into the vacuum line feeding my dist. Then run it to the switch on the thermostat, then run it to the egr?
Or can I just tap into the vacuum line feeding my dist. Then run it to the switch on the thermostat, then run it to the egr?
Post Fiend
Joined: Mar 2011
Posts: 8,501
Likes: 4
From: Lynchburg, VA
It doesn't work that way. The load control valve (LCV) determines when to activate the ERG valve based on vacuum level. IIRC, it's hooked to ported vacuum to determine load and switches manifold vacuum on and off.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 787
From: Simi Valley, CA
D6AZ-9F424-A .. EGR Vacuum Load Control Valve Assy / Obsolete
Applications except CA: 1977/79 F100/350 351M/400 / 1978/79 Bronco 351M/400.
1976 LTD 400 / 1977/78 LTD 460 / 1978 LTD/Thunderbird/LTD II/Cougar/Mark V 400 / 1978/79 Fairmont/Zephyr 200 I-6 / 1979 LTD/Thunderbird/Cougar/LTD II 302.
Applications except CA: 1977/79 F100/350 351M/400 / 1978/79 Bronco 351M/400.
1976 LTD 400 / 1977/78 LTD 460 / 1978 LTD/Thunderbird/LTD II/Cougar/Mark V 400 / 1978/79 Fairmont/Zephyr 200 I-6 / 1979 LTD/Thunderbird/Cougar/LTD II 302.
Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
Valve assy, EGR vacuum load control
79 F100-350 w 351M400
Services valves marked D6BE-9F424-B1A, B2A
D7DZ-9F424-B
Kinsel Lincoln Mercury, Beaumont, TX has 1 (800) 816-2894
JST Automotive, Lebanon, TN has 1 (615) 943-3089
Parts International, Farmers Branch, TX has 1 (972) 241-8730
Last list $62.03 Dealer cost $37.22
You can also use the part/ID numbers I posted to call around to see if the parts stores can get one.
79 F100-350 w 351M400
Services valves marked D6BE-9F424-B1A, B2A
D7DZ-9F424-B
Kinsel Lincoln Mercury, Beaumont, TX has 1 (800) 816-2894
JST Automotive, Lebanon, TN has 1 (615) 943-3089
Parts International, Farmers Branch, TX has 1 (972) 241-8730
Last list $62.03 Dealer cost $37.22
You can also use the part/ID numbers I posted to call around to see if the parts stores can get one.
Trending Topics
Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
The D6AZ-9F424-A that Bill posted:
JST Automotive has 1
Kinsel Lincoln Mercury has 8
Parts International has 11
Green Sales, Cincinnati, OH has 14 (800) 543-4959
Last list $58.70 Dealer cost $35.22
JST Automotive has 1
Kinsel Lincoln Mercury has 8
Parts International has 11
Green Sales, Cincinnati, OH has 14 (800) 543-4959
Last list $58.70 Dealer cost $35.22
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Thread Starter
|
Laughing Gas
Joined: Jan 2012
Posts: 1,106
Likes: 25
Is there any difference in the part other than the part numbers?
So i hook up this load control valve to a timed port on the carb, then that plugs into the vacuum line running to the egr valve, which would come off of the switch on the thermostat housing, which plugs into a constant vacuum?
Is that right?
So i hook up this load control valve to a timed port on the carb, then that plugs into the vacuum line running to the egr valve, which would come off of the switch on the thermostat housing, which plugs into a constant vacuum?
Is that right?
Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
Is there any difference in the part other than the part numbers?
So i hook up this load control valve to a timed port on the carb, then that plugs into the vacuum line running to the egr valve, which would come off of the switch on the thermostat housing, which plugs into a constant vacuum?
Is that right?
So i hook up this load control valve to a timed port on the carb, then that plugs into the vacuum line running to the egr valve, which would come off of the switch on the thermostat housing, which plugs into a constant vacuum?
Is that right?
Thread Starter
|
Laughing Gas
Joined: Jan 2012
Posts: 1,106
Likes: 25
Can anybody correct what i have in my mind to route the vacuum lines?
Or will that work?
Post Fiend
Joined: Mar 2011
Posts: 8,501
Likes: 4
From: Lynchburg, VA
You got it about right, although there are various switches which change vacuum according to engine temperature and other factors.
Thread Starter
|
Laughing Gas
Joined: Jan 2012
Posts: 1,106
Likes: 25
I want to get it right the first time.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 787
From: Simi Valley, CA
The Bronco and Passenger Car applications for D6AZ-9F424-A listed in post 6 are from the final edition (11/88) of the 1973/79 Ford Passenger Car parts catalog.
But, who knows after 33 years have passed by, which one of these valves the OP's truck has?