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Build or buy vacuum harness?

W

wmorrison65

New member
GM part is 24508742. The harness that goes from the boost control solenoid, to the fpr, to under the supercharger snout, then around back to the map sensor.

My rubber T under the supercharger snout has disintegrated. Local dealer wants $50 for this assembly and they don't even have it in stock. I've seen it cheaper online, but not by much.

Can't find any rubber tees in stores, just plastic/metal. I've seen references to a thread where someone lists materials to build this harness from standard parts, but I can't find the thread. Anybody know where that thread is, or knows the sizes of vac line and fittings I'd need? I can measure everything after work tonight, but it would be faster if I could just go straight to an auto parts store after work.
 


I built. You'll only need a couple of plastic t's. The one under the snout has a hose size of 1/4" into LIM and then I think you want the reduced sizes coming off the sides for the smaller fittings on the accessories like the FPR
 
I found it difficult to "get it right" with 3rd party applications...

I bought the line you are speaking of from a dealer website for about $40...

The other line that goes from your EVAP solenoid to the TB would be a good replacement as well (if TB end is crunchy) and is about $15...

Trying to find "reducers" or rubber "T's" was what I found difficult...

Expect to pay about $75 bucks to "get it right"...(Both lines)

Thanks to spazz for this link --

http://parts.nalleygmc.com/showAssembly.aspx?ukey_product=2998251&ukey_assembly=383614

Number 558 (24508742) and 522 (24506665)

Hope this helps your decision...
 
I rebuilt my vacuum system for about 20$ buying tees and eye balling it with the vacuum line and buying by the foot from my local advance auto.
 
I "rebuilt" mine in the parking lot of an autozone. I also had a hard time with the changing sizes. I never really looked for a link but I am definitely considering just buying it from a dealer just to get it done right. Also, I'd keep an eye out for a set at the junkyard, you could get lucky.
 
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