V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

Relays

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Old 07-21-2015, 10:35 PM
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Relays

What are the two relays on the right side of the brake booster on the firewall? 2.8 firebird barn find with rat chewed wiring looks like this is going to take a while to repair. They even ate wires to turn signals and couple plug wires.
Old 07-22-2015, 11:41 AM
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Car: check
Engine: check
Transmission: check
Re: Relays

I believe that they are A/C clutch and fuel pump. Which year car would also help narrow it down.

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Old 07-22-2015, 12:14 PM
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Car: 1998 Camaro Z28
Engine: 6.0L
Transmission: 4L60E
Axle/Gears: 3.73
Re: Relays

I know one is the fuel pump, and on mine (88) the other was MAF.
Old 07-22-2015, 06:57 PM
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Car: 86-FireBird
Engine: -MPFI
Transmission: T5
Axle/Gears: 3:42
Re: Relays

once you hit 7psi of oil pressure the bypass will kick the pump on. It can wait if needed, it will run without a working relay.
Old 07-26-2015, 12:27 AM
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Re: Relays

Thanks for the replies now I know where to start
Old 07-26-2015, 12:30 AM
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Re: Relays

BTW its a 85 firebird. I have a pic but don't know how to embed it.
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