How to bi-pass low-n-high? '86 MGM Tudor

[Toploader]

Ok so today I ordered a new Vac canister for a Ford F150 truck, which is the same as a Lincoln Navagator...........I hope this finally ends this BS!! P/N:F65Z 19A566-AA

[Toploader]

Ok gents not too proud to say.......I had some time on my hands this afternoon so per Sly and others I checked every inch of the vac line......well "hideing" in back of the brake booster a small portion of the line was almost burned in half!!! I had no tape but I did have a roll of dum dum, so I covered the hole in that and the TBLS fitting!!......next week the new vac can should arrive so I will be totally good to go finally!!!

should be 1/8 vacuum hose. You can replace it, but if it's not kinked or leaking... that line almost never fails. It's not actually plastic. Not sure what it is, but I've jacked with mine a LOT and it's never become brittle like the other color lines on the emissions crap. I actually prefer that line to vacuum hose. I'd replace the ends if anything at all if they're getting dry and hard/cracked.

[lincolnlarry]

Glad to see you got it sorted out!!!!

[gadget73]

yeah that line runs mostly hidden. Probably laid on something and wore through. Not much gets hot back there, but its not exactly secured to much of anything.

[Toploader]

Does anyone have a spare vac line that I can purchase?

This line looks unique............the rubber ends are much larger than the actual line itself, which when I looked closely at, appears to be a tiny rubber hose, encapsulated by the outside plastic like sheath.

[Toploader]

Larry, it ain't over till the fat lady sings...........or the car becomes good to go

Glad to see you got it sorted out!!!!

[Toploader]

It is amazing the knowledge one gains by simply reading the Ford Volume "H" Engine/Emission manual!! And I quote: " Vacuum hose harnesses consist of nylon hoses....0.150-inch outer diameter and 0.090-inch inner diameter bonded to nylon or rubber connectors. Occasionally, a rubber hose may be connected to the harness. The nylon connectors have rubber inserts to provide a seal between the nylon connector and the component connection (nipple). Use 5/32 inch rubber hose in service.

should be 1/8 vacuum hose. You can replace it, but if it's not kinked or leaking... that line almost never fails. It's not actually plastic. Not sure what it is, but I've jacked with mine a LOT and it's never become brittle like the other color lines on the emissions crap. I actually prefer that line to vacuum hose. I'd replace the ends if anything at all if they're getting dry and hard/cracked.

[sly]

and I was sooo close. I'd just replace with the bulk 1/8 id hose I have on hand. It will stretch the 1/32 difference no problem.

[Toploader]

Sly I read it again, and I left out an additional 7/32 inch hose......so either it's 5/32nds or 7/32nds. Yes when I get a channce next week I hope, I'll run to the auto parts house and pick up some......no a/p places left in my area of NYC:-(...Trump bought up all the land LOL :-(

and I was sooo close. I'd just replace with the bulk 1/8 id hose I have on hand. It will stretch the 1/32 difference no problem.

[sly]

I know the 1/8 will patch any of those nylon lines (which is why I have it) as well as the plastic lines on the EGR stuff.

[87Topaz]

Is that 1/8" ID or OD?

[sly]

I.d.

[87Topaz]

I.d.

Mucho thanks!! Figured that but needed to make sure.

[Toploader]

Sly do you know the size of the port that goes from this to the vac can?

replace the AC check valve at the firewall. Motorcraft YG337. It's not holding vacuum in the system and allowing the vents to drop to the floor. The blower might be limited due to the blend door position due to the lack of vacuum as well.

[sly]

It's probably 5/32 ID hose to go over that. Or use the 1/8 hose with some couplers to some of those rubber adapter ends they sell in the HELP section that go from 1/8 to 5/32.