1990 5.0 air pump question

[metermike]

I have an air pump, and I'm not sure why, but it has a vacuum line running to it, and at the air pump barb fitting, you can blow air into it, and it comes out the port thats 90 degrees to it. Do I have something missing ? I cant believe it would have been a vacuum leak, as the car ran fine. I just feel that the 2nd port should be capped. Any ideas ???? also, I cannot run the car to test it right now, as the engine is out being machined. Thanks Mike s.

[Haystack]

There are a few bypass valves and things built into the smog pump system. One of which bypasses air at wot. Pretty much all smog pumps of this era are the same. I've used junkyard parts off of f-150's crown Vic's and mark7's when I couldn't find the exact right pump then swapped accessories from the original over. They just have different brackets and outlet ports depending on application.

[metermike]

But I still dont know if this port is to be capped or have a line ran to it. I'm not doing any swapping. Thanks

There are a few bypass valves and things built into the smog pump system. One of which bypasses air at wot. Pretty much all smog pumps of this era are the same. I've used junkyard parts off of f-150's crown Vic's and mark7's when I couldn't find the exact right pump then swapped accessories from the original over. They just have different brackets and outlet ports depending on application.

[Haystack]

Should go to the tab/tad stuff. My guess is that if the vacuum lines are missing, so is the rest.

[grabbergreen84]

I looked at some on google, and it looks like that 'manifold' piece can be removed and replaced with a proper one. I don't know why those extra bungs are there. Any part numbers on the pump, or even better, the manifold? I'm guessing it's from a truck or something.

[xctasy]

Normal EFI Air Pump hookup

But I still dont know if this port is to be capped or have a line ran to it. I'm not doing any swapping. Thanks

I'd Cap off the other fitting.



Hopefully this other stuff won't be just a lot of usless info.......




Lookes like an early carb air pump. All pumps should be the same, just different fittings. The later one had a curved back fitting


Carby



EFI





EFI hookup



" Port in Housing" Cardone 32-291 is the generic type of 1981 to 1987 pump E1TZ-9A486-B Ford Econoline E150 E250 E350 1975-1987, but also fits 5.0 Mustangs till 1992, so it is 31 lb/hr.

E1TZ-9A486-BA is CX1798, and they used it on passenger cars and F700 trucks to 1995.


Ford has an internal CX xx or Fxx code for ones that swap. Gross Vehicle Weight/Mass governs the flip between 38 lb/hr and the stock 31 lb/hr it should be.


The pumps come in generic families rated in pounds per hour (or liters per hour). Big EFI 5.8 F150 Truck ones are often 38.4 lb/hr, but some big block 2 and 4-BBL 370/6.1 Lliter trucks just ran car type 31 lb/hr pumps.

The Fxx classification of pumps are based on output and hose postion. A bewildering range of Rear or Side hose combinations, just gotta look through the on line 17, 31 and 38 pound interchanges, eliminating the 17 and 38's.


In liters per hour, thats

14.06 kg/hr (31 lb/hr, passenger car pumps between 3.8 and probably 5.8 liters in ohv engines)
7.7 kg/hr (17 pound per hour, 1.6 to 2.9 liter CVH/EOA/Lima/Cologne pumps generally stamped 1155)
17.44 kg/hr ( 38.4 pound per hour, generally van and truck pumps)

Generally, around 1986 was the pivotal port EFI swap-over year, when Ford changed its time honoured external Thermactor and EGR systems control hadware to incorpate EECIV TAB/TAD or DPFE electronic control.

Depending on the secondary AIR system, prior to 1986, every 1981 to 1985 Ford used versions of the E1TE-9B289-AA "Smog Pump Thermactor Air Bypass Diverter Valve" with a 31 pound per hour air pump on 232-460 (3.8 to 7.5 liter) passenger or sub 8 ton GVW engines.

[metermike]

Thanks to all for the reply's, I'm going to put a cap on the extra port and call it good. the car ran fine before, so its no big deal. We don't have emission testing here anyway. Rev it up and go.





I'd Cap off the other fitting.



Hopefully this other stuff won't be just a lot of usless info.......




Lookes like an early carb air pump. All pumps should be the same, just different fittings. The later one had a curved back fitting


Carby



EFI





EFI hookup



" Port in Housing" Cardone 32-291 is the generic type of 1981 to 1987 pump E1TZ-9A486-B Ford Econoline E150 E250 E350 1975-1987, but also fits 5.0 Mustangs till 1992, so it is 31 lb/hr.

E1TZ-9A486-BA is CX1798, and they used it on passenger cars and F700 trucks to 1995.


Ford has an internal CX xx or Fxx code for ones that swap. Gross Vehicle Weight/Mass governs the flip between 38 lb/hr and the stock 31 lb/hr it should be.


The pumps come in generic families rated in pounds per hour (or liters per hour). Big EFI 5.8 F150 Truck ones are often 38.4 lb/hr, but some big block 2 and 4-BBL 370/6.1 Lliter trucks just ran car type 31 lb/hr pumps.

The Fxx classification of pumps are based on output and hose postion. A bewildering range of Rear or Side hose combinations, just gotta look through the on line 17, 31 and 38 pound interchanges, eliminating the 17 and 38's.


In liters per hour, thats

14.06 kg/hr (31 lb/hr, passenger car pumps between 3.8 and probably 5.8 liters in ohv engines)
7.7 kg/hr (17 pound per hour, 1.6 to 2.9 liter CVH/EOA/Lima/Cologne pumps generally stamped 1155)
17.44 kg/hr ( 38.4 pound per hour, generally van and truck pumps)

Generally, around 1986 was the pivotal port EFI swap-over year, when Ford changed its time honoured external Thermactor and EGR systems control hadware to incorpate EECIV TAB/TAD or DPFE electronic control.

Depending on the secondary AIR system, prior to 1986, every 1981 to 1985 Ford used versions of the E1TE-9B289-AA "Smog Pump Thermactor Air Bypass Diverter Valve" with a 31 pound per hour air pump on 232-460 (3.8 to 7.5 liter) passenger or sub 8 ton GVW engines.[/QUOTE]

[555grim666]

I have a 1990 mercury grand marquis. My granpas old car. I'm having trouble finding the parts for the smog system

[xctasy]

As above.

Port in Housing" Cardone 32-291 is the generic type of 1981 to 1987 pump E1TZ-9A486-B Ford Econoline E150 E250 E350 1975-1987, but also fits 5.0 Mustangs till 1992, so it is 31 lb/hr.

Remember, the 5.0 was effectively a truck, Mercury Lincoln home base, so most of its parts are EFi 5.0 from the bigger Lincolns, like the last of the LSC's.

"https://www.amazon.com/Cardone-32-291-Remanufactured-Smog-Pump/dp/B000C41KHG/ref=au_as_r?_encoding=UTF8&Make=Ford%7C54&Model=LT D%20Crown%20Victoria%7C5852&Year=1990%7C1990&ie=UT F8&n=15684181&newVehicle=1&s=automotive&vehicleId= 1&vehicleType=automotive"

Do be careful though. Aftermarket parts break the agreed 50 000 mile EPA durability requirements, and keep your receipt. All emissions gear is life of the vehicle with maintenance intervention.

Smog equipment must be suitable for purpose, and is subject to correct break in, with the right belt tension.

see
http://vb.foureyedpride.com/showthre...urnt-out-again

http://vb.foureyedpride.com/showthre...light=air+pump

[xctasy]

For other parts of the AIR system, then you have to get into the DTC ( Dealer Trouble Codes ) codes with the EGR fully functioning.

FoxChassis on the 1982-1993 Mustang GT Registry Message Board posts some great function checks where the upstream and down stream AIR posts a Left or Right fault code, and you can break it on down depending on from that.

http://www.mustanggt.org/forums/showthread.php?t=30385

The replacement parts for the gradual evolution of the Thermactor system are best discussed with the Panther forum guys. Parts are generally EFi Port injected Mustang from the High Output Lincoln LSC with part numbers from 1985 to 1986.

A deadline for full OBDII Operation was 1995, but Ford started a standard list of parameter identification (PID) data used by all 5.0's starting in the Lincolns from 1990 model year.

The movement to a full EEC-V OBD II system was 1994-1995.

Before that, the 90 -92 5.0's got phased in PID's, and that stuff allows you to check voltages ranges like the old Breakout boxes Ford technicians used to diagnose problems. So 1990 cars are a lot easier to work on when you are pulling codes and fault finding. The components are reasonable easy to diagnose.

As the activated PID data was added to the EECIV fault codes in 1990 to 1992, Ford then started to phase out Upstream AIR by 1993-1994, so a lot of changes happened. Extra sensors were added, some even removed, so you have a few options open to you.

Your best bet is Mustang 86-93 part codes, but the big Panthers generally weren't High Out put engines. They were generally listed as Standard Performance in Ford speak.