That little switch on the back of a R4 compressor

Reply Subscribe

Thread Tools

Search this Thread

11-18-2009 | 03:31 AM

85 ZXX

Thread Starter

Member

iTrader: (1)

Joined: May 2009

Posts: 403

Likes: 0

Car: 85 Z28 T-Top 36mm sway & wonderbar

Engine: TPI L98 350 W/85 Vette Stage II ECM

Transmission: W/C T-5, alum drive shaft

Axle/Gears: 9 bolt posi, 3:27, PBR's, BB LS1's

That little switch on the back of a R4 compressor

On my 85 TPI Z28 I have a 2 wire plug (dk green/white and Lt blue/black wires) that is suppose to connect to a switch on the back of the ac/compressor. I'm just not sure which switch I'm suppose to have...There are three options: 1- High pressure, 2-Fan, 3-Low pressure...Can anyone advise on this? Thanks!!!

Reply Like

01-13-2010 | 02:26 AM

85 ZXX

Thread Starter

Member

iTrader: (1)

Joined: May 2009

Posts: 403

Likes: 0

Car: 85 Z28 T-Top 36mm sway & wonderbar

Engine: TPI L98 350 W/85 Vette Stage II ECM

Transmission: W/C T-5, alum drive shaft

Axle/Gears: 9 bolt posi, 3:27, PBR's, BB LS1's

Re: That little switch on the back of a R4 compressor

Well, after doing some digging and testing on the car...It was for a low pressure switch. it ties in with the low pressure cycle switch on the a/c drier. For now, I just tied the two wires together so my cycle switch will work the compressor.

Reply Like

01-13-2010 | 02:15 PM

NINÅ

Supreme Member

Joined: Jan 2006

Posts: 3,341

Likes: 10

From: Mooresville NC

Car: LOWERED ♦ CRIMSON METALFLAKE

Engine: ► 400 KUBES ◄

Transmission: 765R4

Axle/Gears: EATON POSI 4.56

KA-BOOMMmmmmmmmm

That’s the overpressure switch the - purpose of the overpressure switch is to turn the compressor off in case of overpressure.

◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙

If People Drove Any Slower They’d Be Going Backwards

When you see fog lights on in good weather beware. Low performance driver ahead.

How bout those nitwits too scared to drive without headlights in the daytime,