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Old 01-29-2011, 04:06 PM
charles bledsoe's Avatar
charles bledsoe charles bledsoe is offline
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Join Date: Dec 2006
Location: Flintville TN
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Default Oil pressure gauge

On my 79 Olds 403 powered Trans am the preivous owner put in after market oil and temp gauges and hacked up the wiring harness. My question is on the oil pressure switch there is a small tube which runs thru the fire wall and connects to the gauge. Does the original switch only use a electric wire tied into the harness plug that plugs into the gauge cluster, or does this tube coming out of the switch get connected somewhere?
Thanks for any help my manual doesn't address this.

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1969 GTO standard 350HP TH-400.
2006 GTO Phantom Black 6spd.
1972 Formula 455HO Ram Air.
1976 LE Trans Am 50th Anniversary Edition with T top.
1976 Formula 350.
1977 Grand Prix Model J 350.
1978 Trans am 400 Pontiac.
1979 Trans am 403 Olds.
1968 Olds 442.
1971 TR6.
 


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