I need pictures of the wires going into the relays. Something's wrong with mine, don't know which one it is. I've called Nelson and he told me to try this and that, because of only one fan coming on high when the a/c is on. Then he said he would send some pictures of the wiring set-up on one of his on monday. I've called twice since then and he said he would send them yesterday, nothing. I emailed him yesterday to make sure he had my right e-mail address, he sent me back an e-mail saying that he didn't have the pictures on that computer and would send them later on the other computer. Nothing. I called again today, the other guy said, "I'll tell him". This is bullshit! I'm driving to dallas friday (4 hour trip) and need to get this fixed by tomorrow.

So, could SOMEBODY please take some pics of their harness where the wiring is. I've already swapped the relays around every possible way and it didn't fix it.

 

he put up a post on ls1truck stating he is having problems with outgoing e-mail.

 

I also sent him a private message off this site yesterday.

 

i re read your post and i too have only one fan on When the a/c is on.Works great, hope ya figure your prob out.

 

Swapping the relays from one connector to the other doesn't change the circuitry.

Most times people don't get the PIN42 terminal seated all the way. Check that, plus recheck your other connections.

The PCM was programmed for fan usage, correct?

 

No, I have it set up on a toggle. Nelson told me to swap around the relays. He also said that both fans were supposed to come on high.

 

then, perhaps that was to check for a bad relay.

Definitely reverify all of your connections.