it's a 01 4.6 and I have having an issue when I turn my key off and pull it out a few secs later the temp light and check engine comes on and stays. I pulled the gem out and everything looks good. I also see no signs of water. Any ideas? Thanks in advance

 

It is really hard to say but i would start by pulling the codes on your check engine light. The code might not be your problem but it might give you an idea.

you dont have a lot of things that could be wrong besides the wiring harness, GEM, instrument panel, ignition switch, or the PCM.

 

The only codes I get is the dreaded egr code.

 

I will look in the diagrams and see what I can find. Are those the only 2 indicators that come on after the key is removed?

 

Yes that is all

 

Also If the. Air is on when I shut off it will stay on, just thought of that

 

Sounds like you have ignition switch issues then. With the blower staying on it get its power for the blower motor off the ignition triggered feed.

 

Okay thanks I'll try that

 

Would you recommend changing the cylinder too? Or just the switch?

 

Well I replaced the switch and it didn't fix it. The abs lights is on too after key is out. Any ideas?