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1981 vacuum help #828479 08/03/07 04:54 PM
Joined: Aug 2007
Posts: 3
R
rich92365 Offline OP
Need a Spot
i am having a hard time figuring out the vacuum lines on my truck. i have the diagrams from the autozone website,from under my hood, & from the Haynes manual but i am still having trouble. i have most of the lines connected but i can't find my HAC. are they on all of these trucks? if not what do i do with the lines coming of the carb.? i am just learning how to work on my truck so please, any help would be appreciated

From the Off-Road World
Re: 1981 vacuum help [Re: rich92365] #828480 08/03/07 05:51 PM
Joined: Jul 2002
Posts: 1,674
stock87 Offline
Body Damage is Cool
HAC was definitely optional, and the California trucks didn't have them because of smog restrictions.

If you need a diagram that doesn't show it, look for one for a 1981 California truck. If you do have an HAC, it will be a brown colored hockey puck looking thing over by the fuse box behind the battery.


My Truck: 1987 XtraCab DLX 22R 4WD 5 Speed Manual
--------------------
"Speed has never killed anyone. Suddenly becoming stationary, that's what gets you." -Jeremy Clarkson
Re: 1981 vacuum help [Re: stock87] #828481 08/03/07 05:59 PM
Joined: Aug 2007
Posts: 3
R
rich92365 Offline OP
Need a Spot
any suggestions as to where i can find a diagram? i really appreciate the fast answers, thank you

Re: 1981 vacuum help [Re: rich92365] #828482 08/03/07 07:58 PM
Joined: Jan 2000
Posts: 12,153
4Crawler Offline
Web Wheeler
*****

Re: 1981 vacuum help [Re: stock87] #828483 08/04/07 04:40 AM
Joined: Oct 2006
Posts: 65
M
myyota Offline
Getting the Wheeling Fever
I have an 84 4Runner california truck and it had HAC, i just removed it, less junk and vacuum lines under the hood.

Re: 1981 vacuum help [Re: rich92365] #828484 08/06/07 01:18 AM
Joined: Oct 2002
Posts: 15,887
kewlynx Offline
Toyota & Classifieds Moderator
*****
HAC is optional. Your FYI, if the vacuum hose in a diagram has a dashed appearance, it's an optional item. Got that tidbit from an ASE friend of mine.


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Re: 1981 vacuum help [Re: myyota] #828485 08/06/07 01:39 AM
Joined: Jul 2002
Posts: 1,674
stock87 Offline
Body Damage is Cool
Quote
I have an 84 4Runner california truck and it had HAC, i just removed it, less junk and vacuum lines under the hood.


Wouldn't happen to still have it + the vacuum fittings + the mounting bracket by any chance? <img src="/forums/images/graemlins/smile.gif" alt="" />

I don't go over the passes very often but the occasional times I do man I wish I had one.


My Truck: 1987 XtraCab DLX 22R 4WD 5 Speed Manual
--------------------
"Speed has never killed anyone. Suddenly becoming stationary, that's what gets you." -Jeremy Clarkson
Re: 1981 vacuum help [Re: kewlynx] #828486 08/06/07 05:37 PM
Joined: Aug 2007
Posts: 3
R
rich92365 Offline OP
Need a Spot
i didn't know that about the dashed lines. thanks for the info.


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