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Old 10-06-2015   #1
trickis1127
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Join Date: Apr 2013
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Need help identifying a part please

Hi all. So we are nearing the restoration of our 1988 GTA. Was starting to clean up old parts, go through the car, and under both the drivers and passenger seat is a rubber vacuum line of some kind, not connected to anything. Along side it, in the same harness there is a 4 pin electrical connector, also not connected to anything. I looked in all my manuals and shop guides and can't find anything in regards to what this might be. Can anyone help? Maybe it's for something optional at this car doesn't have but I don't want to leave it disconnected if it is something important. Thanks!
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Old 10-06-2015   #2
8T9GTA
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Join Date: Jun 2002
Location: Massachusetts
Posts: 219


Re: Need help identifying a part please

If I'm not mistaken, I believe those connect into the bottom of the seats. The vacuum line provides the air to fill the air bladders in the lumbar and side bolsters, and the electrical connector is what sends the signal when the adjustment buttons on the seat are pressed.
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Old 10-07-2015   #3
trickis1127
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Re: Need help identifying a part please

Wow, pretty fancy for back then! I will check it out this afternoon, thanks for the info!
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Old 10-08-2015   #4
MunsonGTA
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Join Date: Jun 2004
Location: Ravenna, OH
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GTA Year: 1987
GTA Engine: Custom
Re: Need help identifying a part please

That is exactly what they are for. GTA seats have lower lumbar and wrap around bolsters.
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87 GTA: Forged 408 LSX short block, TEA stage 2 cnc ported 243 heads, BTR Stage 3 stroker cam, Fast 102 intake, NW 102 TB, Longtube headers, custom 411 ECM, custom harness, custom tuned, Performabuilt stage 2 4l60E with PTC 2800 stall, 9 bolt rear with 3.70 gears and TAP girdle.

11.16 at 123 mph.
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