dreaded fuse 47 but random...

[leviathon]

So here is the story up to it....drove to the store, came out cranked the car, went to go out the parking lot..hardly no ass, saw the check engine light and OD light flashing. limped home checked the fuse sure enough blown, put a new one in. Next day go down the road, about 6 miles, blows on me again. I go back home and change it and check relays, i needed to swap in a lil burnt low speed fan relay so i did that but nothing related to the 47 fuse *fan was little burnt before hand i just changed it because* drove the car around to try and blow it. drove a couple miles and let the car idle for about 45 minutes...nothing...figured the fan relay did it...

TODAY drive a couple miles again, blows.... Im totally at a loss here. I checked the harnesses for the top O2 sensors nothing looked melted or rubbed. Any clue?

 

[Lime1Gt]

Your going to have to follow the wiring diagram here for fuse 47 and see what it feeds so you can look for a short. ie; o2 sensors heaters, brake pedal switch, evap purge canister valve, evap vent solonoid, heated pcv valve. Have you checked for engine codes? Start there and list them.

http://iihs.net/fsm/?d=40&f=Electronic Engine Controls - 4.0L.pdf&p=2

http://iihs.net/fsm/?d=40&f=Electronic Engine Controls - 4.0L.pdf&p=4

http://iihs.net/fsm/?d=40&f=Electronic Engine Controls - 4.0L.pdf&p=5

 

[leviathon]

When the fuse does blow it gives me. All p2 sensor codes, 2 evap codes, all trans solenoid codes. About 13 or 14 in total. And of course ac doesn't work

 

[leviathon]

Update, ran ac still blew. Unplugged egr still blew.