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Old 09-13-2009, 06:06 PM
cadurning's Avatar
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Join Date: Jul 2009
Location: Magee, MS
Posts: 180
Relay help

I've been chasing down an intermittent issue with my A/C on my '72 w108 barn find. There are times when A/C clutch will loose power. Testing shows that power is going through the switches on the A/C unit in the car. In looking at the wiring schematic I found a relay that looks like will disconnect power to the A/C clutch for starting. I suspect that relay may be the problem, but which one is it? I used the technique of touching the relays during cranking and releasing the key to see if I could tell which one it is. Unfortunately all the relays feel the same. Next step would be to isolate the relays and try it again.

What I am asking is does anyone know which relay it is?



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Old 09-14-2009, 10:47 PM
meltedpanda's Avatar
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Join Date: Mar 2003
Location: Central Ky
Posts: 6,241
are they all the same numbers. I think ( THINK ) the one facing is the fuel pump relay

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