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

Fan relays

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Old Apr 23, 2002 | 06:36 AM
  #1  
86camarodriver's Avatar
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From: Indianapolis, IN
Fan relays

Does anyone know where all of the fan relays are for our cars. Ever since I pulled the A/C the freakin fan wont shut off unless I disconnect it and a few people said I needed toground a relay but I have no idea where those are.
Thanks
David
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Old Apr 23, 2002 | 09:24 AM
  #2  
TomP's Avatar
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From: Central NJ, USA
Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
Don't listen to those guys. Your relay's fine.

On the hard line you removed from the passenger side's main frame rail, there was a sensor. This is the "high pressure A/C" sensor... well, not sensor, it's a "switch". When the pressure becomes very high in the a/c lines, the switch opens, and the fan kicks on.

So take that connector, and put a jumper wire inside to connect the two pins. Tape it up, and you're good to go.

Side note: Looks like a real easy spot to put a fan switch on, eh?
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Old Apr 23, 2002 | 10:22 AM
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86camarodriver's Avatar
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From: Indianapolis, IN
Originally posted by TomP
Don't listen to those guys. Your relay's fine.

On the hard line you removed from the passenger side's main frame rail, there was a sensor. This is the "high pressure A/C" sensor... well, not sensor, it's a "switch". When the pressure becomes very high in the a/c lines, the switch opens, and the fan kicks on.

So take that connector, and put a jumper wire inside to connect the two pins. Tape it up, and you're good to go.

Side note: Looks like a real easy spot to put a fan switch on, eh?
I saw a hard line attached to the body that runs to the condensor (have not had time to pull the condensor yet) over there but I never disconected anything, I did pull some wires connected to the compressor though. Do I need to pull the condensor and the hard line before I can do what you said?
David
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Old Apr 23, 2002 | 03:40 PM
  #4  
TomP's Avatar
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From: Central NJ, USA
Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
Well, if you never disconnected anything, then disconnect that sensor on the hard line that's bolted to the passenger side's main frame rail, and connect the two terminals with a jumper. This worked for my a/c, but I have the entire system pulled and disconnected, except for the a/c evaporator against the firewall. (I needed something to plug that heater/evap box hole! I don't really feel like digging in and putting a heater-only box in there; plus, I've never seen one around here.)
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Old Apr 23, 2002 | 04:45 PM
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86camarodriver's Avatar
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From: Indianapolis, IN
Originally posted by TomP
Well, if you never disconnected anything, then disconnect that sensor on the hard line that's bolted to the passenger side's main frame rail, and connect the two terminals with a jumper. This worked for my a/c, but I have the entire system pulled and disconnected, except for the a/c evaporator against the firewall. (I needed something to plug that heater/evap box hole! I don't really feel like digging in and putting a heater-only box in there; plus, I've never seen one around here.)
Ok I will try that Saturday
Right now I have that hole covered with Duct tape
David
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