bad electrical connection underneath

[fireball]

I've got an electrical gremlin playing havoc with my gauges and the bcm,the bcm part I found out after the truck was scanned with a Snap On scanner.The problem only seems to arise when it's raining or snow/slush covered roads which leads me to believe that where ever the connection/wire problem is its susseptable(sp?) to dampness so I'm thinking it's on the underside of the truck.When the problem arises the message center will cycle through low fuel,battery and security and the fuel & temp gauges will read 0 as if the engine was off but the amp and oil pressure gauges dont seem to be affected.When everything dries out all is back to normal.Got any ideas as where to look?

[snoman]

I've got an electrical gremlin playing havoc with my gauges and the bcm,the bcm part I found out after the truck was scanned with a Snap On scanner.The problem only seems to arise when it's raining or snow/slush covered roads which leads me to believe that where ever the connection/wire problem is its susseptable(sp?) to dampness so I'm thinking it's on the underside of the truck.When the problem arises the message center will cycle through low fuel,battery and security and the fuel & temp gauges will read 0 as if the engine was off but the amp and oil pressure gauges dont seem to be affected.When everything dries out all is back to normal.Got any ideas as where to look?

 

<{POST_SNAPBACK}>

 

 

 

Check all of your firewall connections for starters and apply connector grease to them before you put them back together.