Fan not turning on, With new parts
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Joined: Sep 2006
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Car: 1992 Camaro RS
Engine: 3.1 V6
Transmission: Automatic
Fan not turning on, With new parts
Ive changed the fan switch, and coolant sensor. The fan turns on when i jump it from the battery but thats it. What could be the problem? the relay?
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From: Tallahassee, Florida
Car: '86 Trans Am and '03 S-10
Engine: 355ci and 4.3l
Transmission: 700R4 and NV3500
Axle/Gears: 7.625/3.42 Auburn and 8.5/3.08 Gov-
Re: Fan not turning on, With new parts
X2 or the fusible link for the fan relay. Find the relay....Red lg wire is the constant power from the fusible link = 12V constant, Black-Red lg wire is the output to the positive fan terminal = 12V when fan on, Brown wire is the switched power from the fuse box (C/H FAN 20amp) = 12V ignition on, and Green-White is the trigger for the relay to come on = grounding. The grounding trigger comes from 2 sources...the fan switch or the ac switch inside. If the fan doesnt come on with AC on OR when preset cooling temp is reached, then you either have a blown CH/FAN fuse (brown wire circuit), a blown fusible link (red wire circuit) or simply a bad fan relay. Use a volt-meter to test Red - constant 12V and Brown - ignition 12V 1st , and then move on to swapping the relay if those are good.
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