1992 Chevy lumina cooling system problem?

  • Thread starter Thread starter twf1968
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twf1968

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when driving, my lumina cooling system works great,but when i set at a red light, drive thru etc, the temp in the cooling system goes up and the cooling fan does not come on. Ive checked the relays that controls that circuit and those seem good, i've also ran a jumper wire to the fan motor itself and that works. Anyone have this problem and if so what fixed it? or if anyone knows how to fix this problem please let me know. Thanks for your time.
 
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