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07-08-2006, 02:05 PM
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#1 |
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Registered User
Join Date: Jun 2006
Location: socal
Posts: 8
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Can anybody tell me what this is???
What is this? and do I need it?
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07-08-2006, 03:03 PM
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#2 |
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Account Suspended
Join Date: Nov 2004
Location: Deer Park, Tx.
Posts: 2,524
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Re: Can anybody tell me what this is???
Do you have a/c on your truck?
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07-08-2006, 03:30 PM
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#3 |
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Registered User
Join Date: Jun 2006
Location: socal
Posts: 8
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Re: Can anybody tell me what this is???
nope no AC. one of the lines goes to the dizzy and the other two to the carb. There also seems to be some electrical hook up to it.
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07-08-2006, 04:26 PM
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#4 |
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Registered User
Join Date: Jan 2006
Location: Houston
Posts: 434
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Re: Can anybody tell me what this is???
Looks like TCS. (Transmission Spark Control) I do not believe it's really needed with today's gasolines.
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07-08-2006, 05:56 PM
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#5 |
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Senior Member
 Join Date: Mar 2003
Location: Colfax-California
Posts: 8,599
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Re: Can anybody tell me what this is???
TCS lets the vac advance work when the truck gets shifted into high gear. Supposed to drop the NOx content of the exhaust. First attempt at todays EGR system
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07-08-2006, 08:23 PM
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#6 |
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Registered User
Join Date: Jun 2006
Location: socal
Posts: 8
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Re: Can anybody tell me what this is???
I knew you guys would know! So off it comes!!! Thanks for your help!
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07-08-2006, 09:09 PM
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#7 |
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Registered User
Join Date: Nov 2003
Location: Alexandria, VA
Posts: 1,534
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Re: Can anybody tell me what this is???
TCS (temperature/transmission controlled spark) solenoid. If it's hooked to the distributor vacuum advance. Like kwmech said it allows vac advance if engine temp is above 82*F or transmission is in high gear. Wire should hook up to it's own temp sender on cyl. head and transmission.
__________________
'72 GMC SWB C1500 Custom, frame-off in progress. 383 SBC, 9:1CR, Comp Cams XE262H, Scat internal balanced crank, Eagle SIR 6" rods, Keith Black dish pistons, Dart Iron Eagle 72/180 heads, Weiand Stealth intake, Stewart stage I water pump, Holley 4bbl vac sec, TH350 with B&M Shift Improver Kit. 12 bolt positraction.   
Last edited by Sweet72; 07-08-2006 at 09:12 PM. |
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