External fuel pump
#661
FYI, Steve reported -20 in.Hg when I had him check the vacuum on the red line. See post #554.
He also added a new Check-Valve to the Red Hose, then tested the vacuum where the Black Hose side connects to the Reservoir (Solinoid Vacuum Manifold side) and reported -20 in.Hg.
He also added a new Check-Valve to the Red Hose, then tested the vacuum where the Black Hose side connects to the Reservoir (Solinoid Vacuum Manifold side) and reported -20 in.Hg.
#662
1985 F-150 5.0L EFI Emissions Solenoid Assy.
Note, connectors are keyed differently.
The source vacuum manifold fits on the bottom 3 ports. The top ports feed the TAB, TAD & EGR devices.
First Photo; Left to Right; TABypass TADiverter EGRcontrol EGRvent
Last edited by vjsimone; 07-26-2016 at 08:55 PM. Reason: Adding text
#664
For those still not sure what this part of the thread is about, Vincent's pic's tell the story!
Steve
Steve
Steve, I would use the reservoir you have, and just add the check valve to your red hose, available from your local auto parts, they are about $6.
Check the Black hose side of your reservoir with your vacuum gage after you install the check-valve into the Red hose side. You should get 15-20 -in. Hg.....
Check the Black hose side of your reservoir with your vacuum gage after you install the check-valve into the Red hose side. You should get 15-20 -in. Hg.....
#665
Great pics, Vince! I just saw these this morning for the first time by accident after I posted pics I found on the internet. Didn't get a notification. Was in the hospital yesterday and had surgery. Didn't get anything done on the truck and probably won't until they pull this catheter from me.
Steve
Steve
Steve is taking his apart next week when his replacement arrives, hopefully he will photograph it then. But for now;
1985 F-150 5.0L EFI Emissions Solenoid Assy.
Note, connectors are keyed differently.
The source vacuum manifold fits on the bottom 3 ports. the top ports feeds the valves.
First Photo; Left to Right; TABypass TADiverter EGRcontrol EGRvent
1985 F-150 5.0L EFI Emissions Solenoid Assy.
Note, connectors are keyed differently.
The source vacuum manifold fits on the bottom 3 ports. the top ports feeds the valves.
First Photo; Left to Right; TABypass TADiverter EGRcontrol EGRvent
#666
Update -
I got tired of waiting for that part from China. It’s evidently still stuck at customs in New York. I rigged my own out of hose and plastic fittings. In the process, I also found a break in the line where the air pump's diverter hose connects to a 5 prong fitting where 5 different vacuum hoses converge; that fitting then has lines that run to the vacuum canister and solenoids. I fixed that and with the new rig I am getting a reading on the vacuum gauge of approx 18 Hg/45 Mg.
I pulled the codes. The 34 code is history! However, you may recall I was pulling a code 41. I am no longer pulling that code either. Instead, I am pulling a code 42, rich bank #1. The good news is there’s no other codes.
With regard to the #42 code, I am considering having the O2 sensor moved so that it incorporates both headers instead of just one. It is possible that registering only one side is causing the problem. That would also end up messing with my fuel mixture to a degree, right?
I got tired of waiting for that part from China. It’s evidently still stuck at customs in New York. I rigged my own out of hose and plastic fittings. In the process, I also found a break in the line where the air pump's diverter hose connects to a 5 prong fitting where 5 different vacuum hoses converge; that fitting then has lines that run to the vacuum canister and solenoids. I fixed that and with the new rig I am getting a reading on the vacuum gauge of approx 18 Hg/45 Mg.
I pulled the codes. The 34 code is history! However, you may recall I was pulling a code 41. I am no longer pulling that code either. Instead, I am pulling a code 42, rich bank #1. The good news is there’s no other codes.
With regard to the #42 code, I am considering having the O2 sensor moved so that it incorporates both headers instead of just one. It is possible that registering only one side is causing the problem. That would also end up messing with my fuel mixture to a degree, right?
#667
#668
OK, Vinny. I'm not sure what that means in terms of the problem it causes and what the fix is. Ideas are welcome!
#669
I'm not sure on your issue; But, you just might have to purchase a high quality (OEM) O2 sensor to eliminate the O2 sensor as the culprit.
Last edited by vjsimone; 08-14-2016 at 08:30 AM. Reason: Adding text
#671
Thanks, Vinny! The O2 sensor I purchased and installed is the following: NGK O2s/Oxygen Sensor 22534- ReadReviews onNGK O2s #22534
What about moving the O2 sensor to a better location incorporating both the left and right side exhaust? Is that worth a try?
What about moving the O2 sensor to a better location incorporating both the left and right side exhaust? Is that worth a try?
#672
The 1987-1995 trucks have a heated (yours isn't heated) O2 sensor in a cross pipe where the two sides join in front of the catalytic converter. You could do that, but would need to add the heater circuit for it to function correctly.
On the vacuum valve set, I have a set of those, with the lines from the quick connect (also there) to the various pieces. No MAP sensor or reservoir though. The green line for the EGR had a crack and was repaired.
On the vacuum valve set, I have a set of those, with the lines from the quick connect (also there) to the various pieces. No MAP sensor or reservoir though. The green line for the EGR had a crack and was repaired.
#673
Thanks, Vinny! The O2 sensor I purchased and installed is the following: NGK O2s/Oxygen Sensor 22534- ReadReviews onNGK O2s #22534
What about moving the O2 sensor to a better location incorporating both the left and right side exhaust? Is that worth a try?
What about moving the O2 sensor to a better location incorporating both the left and right side exhaust? Is that worth a try?
#674
Thanks, 85lebaront2! I found some information on what you suggest: P0042 ? Heated oxygen sensor (HO2S) 3, bank 1, heater control -circuit malfunction ? OBD Trouble Codes
So simply moving the O2 sensor will not, it itself, correct the issue. Is the heated circuit another O2 sensor? If so, where would the electrical connection go?
[QUOTE=85lebaront2;16496058]The 1987-1995 trucks have a heated (yours isn't heated) O2 sensor in a cross pipe where the two sides join in front of the catalytic converter. You could do that, but would need to add the heater circuit for it to function correctly.
So simply moving the O2 sensor will not, it itself, correct the issue. Is the heated circuit another O2 sensor? If so, where would the electrical connection go?
[QUOTE=85lebaront2;16496058]The 1987-1995 trucks have a heated (yours isn't heated) O2 sensor in a cross pipe where the two sides join in front of the catalytic converter. You could do that, but would need to add the heater circuit for it to function correctly.