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07-16-2022
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#1 |
 Join Date: Nov 2016
Location: New Brunswick
Posts: 961
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What Does A Vacuum Leak Screw Up on a LT-5?
Just was mulling this over las night. Out of curiosity, what is effected by a vacuum leak on an LT-5? How would a vacuum leak effect operation or drivability?
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[B]1990 ZR-1 # 996[/B] "All Corvettes are red. The rest are mistakes." - John Heinricy |
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07-16-2022
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#2 |
Join Date: Sep 2016
Location: Ocala, FL
Posts: 896
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Re: What Does A Vacuum Leak Screw Up on a LT-5?
One type of leak will give a high idle. Another type will give a code 61, limit rpm to 3,000, and lock out the secondaries. Another type will have the vacuum pump running too much. Another type will render the cruise inoperative. Another type will render climate control doors inoperative. Did I miss anything?
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Steve Young 1991 ZR-1 Quasar Blue Metallic/Black #729 Second Owner 1991 ZR-1 Dark Red Metallic/Black #2040 SOLD 1990 ZR-1 Dark Red Metallic/Saddle #1670 SOLD Double your happiness.....complain half as much. |
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07-17-2022
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#3 |
Join Date: Jan 2021
Location: Beautiful Bavaria
Posts: 522
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Re: What Does A Vacuum Leak Screw Up on a LT-5?
If I remember correctly there is an article on Marc's page where he translates certain leaks into idle rpm increase. Very interesting read.
I'll see later if I can find it and if so I will post a link.
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ZR-1 #638/1991 |
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08-15-2022
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#4 | |
 
Join Date: Dec 2005
Location: Delanson, NY
Posts: 931
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Re: What Does A Vacuum Leak Screw Up on a LT-5?
Quote:
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1968 convertible Lemans Blue, 1986 coupe Medium Blue NCRS Top Flight (sold), 1990 ZR1 #2529 Red NCRS Regional and National Top Flight (sold), 1990 ZR1 #2124 Charcoal Metallic NCRS Top Flight 2010 & 2018, 2003 Anniversary Red Convertible (sold) |
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