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#1
03-27-2013, 03:39 AM
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Is your carpet getting wet in the front on the passenger side?
mine was, someone ruined the grommet for the harness that passes through the firewall. luckily the parts guy at gm took the time to find the engineering number for it by calling gm and was able to order one! it was a pain in the ass to install due to the fact the hole the wires go through is the size of a pencil so the two connectors need to be de-pinned. i put the wires through one by one, when it was time to slide the grommet up the harness i sprayed the harness with silicone spray, made life alot better!
anyway i wanted to post this for anyone else that has the same issue. this grommet seals the firewall under the pcm, right where water runs down the strut tower/firewall. without it it runs right into the car. the part number for the grommet is 22709699
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 1999 Z28 T-Top M6 - LS6, Bolt Ons, Suspension, MWC Narrowed 9" - 415rwhp 385rwtq 10.847 @ 125.17 1989 IROC-Z H/T M5 2006 F350 SCSB 4x4 6.0L Diesel - Studs, EGR Delete, Powermax Turbo, Extreme Tuning & Exhaust - 13.23 @ 101 
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#2
03-27-2013, 03:40 AM
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last pic
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1999 Z28 T-Top M6 - LS6, Bolt Ons, Suspension, MWC Narrowed 9" - 415rwhp 385rwtq 10.847 @ 125.17 1989 IROC-Z H/T M5 2006 F350 SCSB 4x4 6.0L Diesel - Studs, EGR Delete, Powermax Turbo, Extreme Tuning & Exhaust - 13.23 @ 101
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#3
03-27-2013, 04:26 PM
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I literally covered mine in silicon after I ran the wires for my gauges. no leak. Nice job that takes some patience
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 95 Z28 hard top - LT1 | 4L60e | bolt ons | Yank SS3600 | suspension | viking coil overs | 3.42 10 bolt | 3520 lbs - 12.331 @ 108.22mph 1.668 60' 08 Saab 9-7x - L96 6.0 swap | L92 heads/intake/TB | LS6 cam | LS9 springs | 7.425" hardened pushrods | CAI | 1-3/4" stepped LT's | catback | 4L60E | FTI 3000 278mm converter
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