RDnck -- thank you again for checking and the pictures added up another cold one -- plugged in the '95 and the '97 info into the search thing on rock Auto and one other website -- those model year (95 & 97) trucks both use the same F5TZ2L487A pulley -- I think the '93 version is very close --...
So the '93 7.3 idi vac pump pulley is part nbr F3TZ2L487A ---- the '95 pulley has a part nbr
Of F5TZ2L487A -- the pictures look the same but will that pulley work on our idi trucks ?? Haven't found physical measurements yet.
Any ideas guys ?
Aircraft & boats also suffer from this slime. You're gonna have to kill that stuff first and then treat it with a preventative. It's tough to get rid of ----- might look at this article
https://www.practical-sailor.com/boat-maintenance/diesel-biocides-take-on-contaminated-boat-fuel
Well, here's where we are ---- from the vacuum manifold to the vacuum low pressure switch (on drivers side wheel well almost under the battery) is a 1/4 id hose -- I wiggled it -- the hose immediately separated from the lo psi switch -- part of it was inside the hose in pieces -- well, I think...
Soooo, I think the slicknik is correct -- pulled off check valve and tried to blow through it -- nuttin' honey -- worked as advertised
Next, put brake to the floor with engine running, then turned engine off, still holding pedal to the floor --- pedal pushed back at me (did it three times to...
When I put the vacuum gauge on the brake booster hose, 1) the vacuum pressure from the vacuum pump showed up immediately at 23 -- 2) as soon as I shut the engine down, the gauge went to zero
I did start & stop the engine twice to check
Now that booster source does go through the vacuum...
My grandma was from the old country and when she wanted to say someone was less than bright, she would use the word DENSE.
I am dense. My brain has --- fill in word ---.
Yes, the light sez BRAKE in red. And book sez 3 things -- pk brake not fully released - master cylinder fluid low -...
It's called the vacuum distribution block & they are correct -- that hose is supposed to go to the low vacuum warning switch on driver's side of radiator near battery #2
From what my Louisiana brain can see, that light doesn't come anywhere near the vacuum system. -- in any case I'll get some measurements on the vacuum produced + start foolin' around with that foot lever switch --- no matter what, thank you guys, and don't stop now if you see anything
Park brake lever function is excellent & released. Snaps up forcefully with no sag.
Brakes function OK -- stomped on 'em and worked great and then released just fine.
But the light is still illuminated -- ideas ??
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