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10-09-2010
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#1 |
 
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,180
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Secondary Port Vacuum Solenoid
Should this hold vacuum without the power key on signaling the ECM?.....I tested it by putting vac on the Solenoid and it will not hold vacuum.
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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10-09-2010
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#2 |
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Join Date: Mar 2009
Location: Orlando, FL
Posts: 1,816
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Re: Secondary Port Vacuum Solenoid
Lee, I think you have to plug one of the holes, and then it should hold vacuum? I think it's something like 2 out of 3 should hold vacuum? I had one go bad on my #1147 and it was not holding vacuum under any circumstances. I wish I remembered more, sorry.
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10-09-2010
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#3 |
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Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,180
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Re: Secondary Port Vacuum Solenoid
Where do you find replacements?
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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10-09-2010
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#4 |
Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,466
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Re: Secondary Port Vacuum Solenoid
Secondaries...SECONDARIES??? WEEE DOAN NEED NO STEEEKING SECONDARIES!!!
I tell ya...it'll run like a bat outta hell without them and drivability will NOT suffer! I'm just sayin!   Come n take the plunge! You won't regret it! (Marc H's chip is a dandy!) P. |
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10-09-2010
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#5 |
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Join Date: Mar 2009
Location: Orlando, FL
Posts: 1,816
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Re: Secondary Port Vacuum Solenoid
I think I found my replacement on ebay from Jim Butler Chevrolet. But like Paul, I'm now running (well, not running right now...) with no secondary butterflies.
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10-09-2010
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#6 | |
Join Date: Dec 2007
Location: Fremont, CA
Posts: 3,093
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Re: Secondary Port Vacuum Solenoid
Quote:
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Linear Mode
