I was under the van today changing the oil and after i started it up to let it circulate before checking the oil. i climbed under the van to get my oil pan out and noticed only one of the electric fans was running. Is this normal? i must have hat the defrost on cause the van was still cold. Do both fans come on at the same time or does the second fan kick on only when needed???? after turning off the van i noticed the fan on the passenger side spun for freely than the driver side as the driver side had some resistance. ill probably put the multi meter to it sometime this week to see of its getting power. Thanks in advance.