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12-23-2013, 05:38 PM
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#1 |
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Registered User
Join Date: Jan 2007
Location: Mississippi
Posts: 2,122
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Help with firewall hole?
What came out of this hole?
Been searching old threads & don't see this hole in several firewalls. It's on a '89 one ton cab that had throttle body 350 & a/c.
__________________
'72 C to K20 "Cannibalizer" http://67-72chevytrucks.com/vboard/s...32#post8653432 '85 K30 "Big Nassy" [B]'85 C10 [B] "Corpse" '01 2500 Suburban ...party wagon & tow truck '06 Silverado SS...DD '06 C1500 WT...DD '07 Classic C1500 WT...DD Built & sold cause can't keep 'em all: '72 Blazer "The Bucket" http://67-72chevytrucks.com/vboard/s...d.php?t=433190 '55 Chevy straight axle gasser https://www.trifive.com/forums/showthread.php?t=173938 '69 Pro Street Chevelle http://www.chevelles.com/forums/showthread.php?t=332541 '86 M1031 CUCV http://67-72chevytrucks.com/vboard/s...d.php?t=553619 |
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12-23-2013, 07:00 PM
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#2 |
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Registered User
Join Date: Mar 2000
Location: Clute, TX.
Posts: 1,935
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Re: Help with firewall hole?
WAS, where the ELECTRONIC SPARK CONTROL MODULE WIRING went through the firewall
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2004 Silverado Crewcab 1972 Chevy Monte Carlo 2017 Chevy Tahoe |
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12-23-2013, 07:07 PM
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#3 |
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Registered User
Join Date: Jan 2007
Location: Mississippi
Posts: 2,122
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Re: Help with firewall hole?
Cool thanks!
__________________
'72 C to K20 "Cannibalizer" http://67-72chevytrucks.com/vboard/s...32#post8653432 '85 K30 "Big Nassy" [B]'85 C10 [B] "Corpse" '01 2500 Suburban ...party wagon & tow truck '06 Silverado SS...DD '06 C1500 WT...DD '07 Classic C1500 WT...DD Built & sold cause can't keep 'em all: '72 Blazer "The Bucket" http://67-72chevytrucks.com/vboard/s...d.php?t=433190 '55 Chevy straight axle gasser https://www.trifive.com/forums/showthread.php?t=173938 '69 Pro Street Chevelle http://www.chevelles.com/forums/showthread.php?t=332541 '86 M1031 CUCV http://67-72chevytrucks.com/vboard/s...d.php?t=553619 |
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12-23-2013, 07:56 PM
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#4 |
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Registered User
Join Date: Dec 2007
Location: Palmer, Alaska
Posts: 13,821
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Re: Help with firewall hole?
87-91 that hole is for the Fuel injection system ECM (computer) wiring.
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 CHEVY ONLY
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12-23-2013, 11:15 PM
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#5 |
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Registered User
Join Date: Mar 2000
Location: Clute, TX.
Posts: 1,935
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Re: Help with firewall hole?
That to , the older news with the ESC system went through the very same hole
__________________
2004 Silverado Crewcab 1972 Chevy Monte Carlo 2017 Chevy Tahoe |
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12-24-2013, 12:28 AM
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#6 |
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Addicted to Rust
 
Join Date: Dec 2009
Location: Abbeville SC
Posts: 1,030
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Re: Help with firewall hole?
I covered the one in mine with a deadbolt block off plate from Lowes. Fit perfect.
Jay
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Current trucks: (48 GMC100 320 inliner) Gone (48 Suburban in pieces) Sold 87 GMC CCSB 5.3 4l60E Daily Driver ECTA National record holder XO/PP We never really grow up, we just learn how to act in public. |
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