Author Topic: vacuum hoses...  (Read 3336 times)

Offline rroeder96

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vacuum hoses...
« on: October 05, 2010, 04:28:59 pm »
im looking for a complete vacuum diagram for a 85 k10 4wd my heat and air switch dont work it only blows on the floor and i was told its a vacuum line that is gone and i would like to get it working again thanks.....

Offline VileZambonie

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Re: vacuum hoses...
« Reply #1 on: October 05, 2010, 06:02:52 pm »
Is the vacuum hose hooked up to the reserve cannister and is the cannister hooked up to manifold vacuum.
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74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline rroeder96

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Re: vacuum hoses...
« Reply #2 on: October 05, 2010, 07:12:04 pm »
if your talking about the one under the head lights no its never been hooked up since i owned the truck now ive only had the truck for about 3 months now and not sure everything about it thanks..

Offline jaredts

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Re: vacuum hoses...
« Reply #3 on: October 05, 2010, 08:11:35 pm »
Thats the charcoal canister.  Vile's referring to the black plastic ball on the firewall, passenger side (at least on my 83).  Should have a tiny vacuum line going through the firewall into the cab and one going to the intake (or I guess the carburetor vacuum would work).

Offline TexasRed

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Re: vacuum hoses...
« Reply #4 on: October 05, 2010, 08:31:15 pm »
Driver's side on my '84

Offline jaredts

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Re: vacuum hoses...
« Reply #5 on: October 05, 2010, 08:37:32 pm »
There's one on the driver's side too, but its for cruise.  Again that's on mine, later models might be different.

Offline rroeder96

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Re: vacuum hoses...
« Reply #6 on: October 06, 2010, 04:20:42 pm »
yeah i do have that but i thought it was for the cruise that i no longer have so it might be the right one im looking for thanks