When in there did you happen to notice if the hose feeding the charcoal canister coming from the tank had a fuel float shut off? I forget what the FSM references but it calls for something there and I would assume this is what it is.
What Did You Do with Your 80 This Weekend? (134 Viewers)
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Replaced the master cylinder proactively and ran a half gallon of brake fluid through the system to bleed and flush. The pedal now creeps slowly down instead of getting completely firm. ARGH 
How did you bleed it? By pumping the brake pedal?
Motive pressure bleeder, after bleeding the master manually per FSM.
How old is the master?
Brand new.
OEM?
Advics master.
Could be the master or air is coming in from somewhere. Bleeder, hose, lspv or any fitting that was touched in the process.
Also look for a Balooned hose.
Maybe - No leaks though, and I'd assume if air can get in, fluid under pressure could get out.
System still has ABS and has a new (OEM) LSPV.
Wondering if there's fluid getting past the seals on the accumulators in the ABS unit. Not exactly sure how to test that though.
System still has ABS and has a new (OEM) LSPV.
Wondering if there's fluid getting past the seals on the accumulators in the ABS unit. Not exactly sure how to test that though.
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All the hoses are brand new SS braided. No obvious issues.
Hmmm. Well I got nothin' then.
That makes me feel slightly better for not being able to figure it out, but a whole lot worse for actually diagnosing the issue.
I just went through and did this similar job, I used a vacuum bleeder the first time but it was sucking air in past the threads on the bleeder screw, so the second time I did single person, loop of hose routed up above the bleeder into a bottle half filled with brake fluid and just worked the brakes slowly. From far to near, and it worked much better.
These old trucks all have their separate issues. I think people have different issues that makes bleeding a pain from the LSV, to old ABS, bad lines, slightly bad masters, etc.
So there isn’t one perfect solution for all. I will be dumping my ABS at some point just because it’s a system I don’t trust after 25 years and replacements parts if available must be astronomical...
These old trucks all have their separate issues. I think people have different issues that makes bleeding a pain from the LSV, to old ABS, bad lines, slightly bad masters, etc.
So there isn’t one perfect solution for all. I will be dumping my ABS at some point just because it’s a system I don’t trust after 25 years and replacements parts if available must be astronomical...
COYS
SILVER Star
Not sure what you’re asking. Perhaps this thread helps.
Fuel Pump Filter Replacement
At 210k I decided that it was probably time to replace the fuel pump filter. This is a :banana: job. Here are the parts I needed for my '97. Filter, Fuel pump 23217-16490 Gasket, Fuel junction 77169-60010 Clip, Fuel filter 23219-03010 Gasket 90430-12026 x2 Tools needed: Ratchet and small...
forum.ih8mud.com
All good, I believe there is a separate vent or evap line elsewhere inside the tank the leads to the Charcoal canister, Wasn't sure if you were sticking you head inside the tank looking around lol. I think it has a float attached to the hose to prevent fuel from going into the hose when not on level ground sealing the tube,
didn't someone recently post this and the fix was some sort of adjustment on the push rod needed to be done?Replaced the master cylinder proactively and ran a half gallon of brake fluid through the system to bleed and flush. The pedal now creeps slowly down instead of getting completely firm. ARGH
COYS
SILVER Star
Nope. I wanted to get in and out of this fuel pump job ASAP. Felt a little uneasy to have all that fuel + smells exposed.
tractorpole
SILVER Star
Looks like Snohomish...
