« previous next »
Pages: [1]   Go Down

Author Topic: Help identifying this part?  (Read 5986 times)

Offline K10NM

  • Newbie
  • Posts: 7
Help identifying this part?
« on: September 01, 2011, 01:48:58 am »
Hey all, i was hoping someone could help me identify this: http://www.use.com/68a0f6d4e8660678aab3#
I think it's a vacuum switch, but what is it used for and operate?
Thanks in advance!
Logged
85 Chevy K10
9" of total lift, 6 susp., 3 body
35x12.50x15 BFG all terrains
Shaved handles, tailgate, mirrors
Custom interior

Offline K10NM

  • Newbie
  • Posts: 7
Re: Help identifying this part?
« Reply #1 on: September 01, 2011, 02:58:40 am »
Sorry, it's an 85 Chevy K10, 350ci, 700r4.
Logged
85 Chevy K10
9" of total lift, 6 susp., 3 body
35x12.50x15 BFG all terrains
Shaved handles, tailgate, mirrors
Custom interior

Offline muddpuppy01

  • Newbie
  • Posts: 87
Re: Help identifying this part?
« Reply #2 on: September 01, 2011, 04:38:07 am »
could  be you lock up switch for the 700r4 how is your hooked up now

if it is you need to get a manifold vacuum to there
Logged

Offline joesgarage71

  • Wrench
  • Senior Member
  • ****
  • Posts: 1156
Re: Help identifying this part?
« Reply #3 on: September 01, 2011, 07:30:00 am »
 In the TECH section should be wiring diagrams for your truck showin this part.
 Steve
Logged
78' K-20 355/SM465/twin stick 205 6" on 36's
14 bolt FF/big bearing Dana 44 4.56 gears
92' GMC C-1500 454/4L80E/14 bolt

Offline Grim 82

  • Senior Member
  • ****
  • Posts: 1651
Re: Help identifying this part?
« Reply #4 on: September 01, 2011, 10:00:06 am »
It is the low vacuum switch for your trans, and yes it needs manifold vacuum. It unlocks the TC when you mash the gas and create a low vacuum signal.
Logged
Give a man a gun, and he might rob a bank. Give a man a bank, and he might rob the world.

Offline K10NM

  • Newbie
  • Posts: 7
Re: Help identifying this part?
« Reply #5 on: September 01, 2011, 03:59:25 pm »
Thanks everyone for the input! Guess I'll trace the wiring and see if it is plugged up to the transmission, and if so, guess I'll get some vacuum going to it. Thanks again for the help!
Logged
85 Chevy K10
9" of total lift, 6 susp., 3 body
35x12.50x15 BFG all terrains
Shaved handles, tailgate, mirrors
Custom interior

Offline VileZambonie

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 19170
Re: Help identifying this part?
« Reply #6 on: September 01, 2011, 09:14:26 pm »
Logged
,                           ___ 
                         /  _ _ _\_
              ⌠¯¯¯¯¯'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline VileZambonie

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 19170
Re: Help identifying this part?
« Reply #7 on: September 01, 2011, 09:35:51 pm »
As you can see from the link I posted above that is not the low vacuum switch for the trans. The vacuum switch on the pass side of the firewall is the tip in vacuum switch for an ESC spark ignition system. The low vacuum switch for the torque converter clutch lock up is behind the brake booster on the drivers side and looks similar.
Logged
,                           ___ 
                         /  _ _ _\_
              ⌠¯¯¯¯¯'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline Grim 82

  • Senior Member
  • ****
  • Posts: 1651
Re: Help identifying this part?
« Reply #8 on: September 01, 2011, 11:24:52 pm »
Good call Vile. I stand corrected.

Ditch that ESC ignition  ;)
Logged
Give a man a gun, and he might rob a bank. Give a man a bank, and he might rob the world.

Offline K10NM

  • Newbie
  • Posts: 7
Re: Help identifying this part?
« Reply #9 on: September 01, 2011, 11:54:58 pm »
Thanks Vile, saves me some time trying to follow the wiring and/or trying to hook it up! Really enjoying this forum, it's been very helpful with a lot of the things I've done to my truck! Thanks again.
Logged
85 Chevy K10
9" of total lift, 6 susp., 3 body
35x12.50x15 BFG all terrains
Shaved handles, tailgate, mirrors
Custom interior

Offline Grover 1

  • Frequent Member
  • **
  • Posts: 414
Re: Help identifying this part?
« Reply #10 on: September 02, 2011, 11:36:34 am »
I just got rid of my ESC ignition on my '86.  Put a new distributor and Q-jet in.  I eliminated more unneeded wiring and possible headaches down the road.  I did a complete makeover under the hood.  Pictures coming this weekend.
Logged
1978 C-10 SWB
1986 K-10 SWB
1975 C-10 SWB

And here I sit so patiently
Waiting to find out what price
You have to pay to get out of
Going through all these things twice - bd

Offline Irish_Alley

  • Tim
  • Senior Member
  • ****
  • Posts: 13333
  • Family is not an important thing. It's everything.
Re: Help identifying this part?
« Reply #11 on: September 03, 2011, 12:49:12 am »
Quote from: Grover 1 on September 02, 2011, 11:36:34 am
I just got rid of my ESC ignition on my '86.  Put a new distributor and Q-jet in.  I eliminated more unneeded wiring and possible headaches down the road.  I did a complete makeover under the hood.  Pictures coming this weekend.
que?
Logged
If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes
Pages: [1]   Go Up
« previous next »