"mark" > wrote in message
...
> When we bought the van a few years ago, the check engine light was on.
> The diagnostic at AutoZone indicated possible fan relay, among other
> things I had to fix. Replaced the relay, fans worked fine for 3
> months, Same thing, got a relay from a dealer this time, 3 months or
> so, I'm replacing it for the 3rd time. What's causing it to burn out?
> The plastic on the connector at the pin 1 ( ? ) contact is a bit
> melted. Help! These relays ain't cheap...
> Mark Goodall

This is a WAG (wild a**ed guess) but check the current drain on the fan. I
expect that it's marginally just below failure and the added current is
melting the relay housing.