My Lights Keep Flashing On And Off On The Dash This Happened To Me Before When It Would Rain But Now There Is No Rain And It Is Just Flashing For No Reason The Problem Before Was Water Getting In Through The Dash Wetting The Gem Module But Now I Have No Clue Wats Going On Can Someone Please Help Me I Think It Might Be A Bad Relay But I'm Not Shure

 

My 97 is doing the same thing, when i have it switched to the AWD mode

noticed it today

The AWD is not working when i have it on, worked fine last winter

hopefully we get some answers here soon

 

yeah we need some help if u find anything out just let me know and i will do the same

 

same thing used to happen to my old '97. i read it was a speed sensor issue, but i had trouble locating the correct speed sensor so i just let it go. try searching "speed sensor" and see what you get.

good luck

al

 

there are two speed sensors related to this issue. They are on the transfer case.

if either is not working, the system defaults to rear wheel drive and the lights flash on and off.

It cost me about $300 dollars to get them replaced at the dealer on a road trip a couple of years ago. But not a big deal unless you need the AWD. I am betting that you can still put it into full time 4x4 with the switch on the dash.

 

Thank you guys, i will look deeper into getting those sensors changed out

 

good looking out im gonna tell my mechanic asap

 

I have had similar problem, but mostly the lamps on mine would not go out, or flash a couple times, or just take lots of time before they would go out. I found the vacuum lines that control the front axle were damaged by battery acid. I had to cut and re-route several feet of the vacuum lines and that took care of many of my 4X4 control issues.

Just a thought, good luck.
Steve

 

thanks ill look into

 

I traded in my '97 for a new Expy in '00 partly because my dealership could not figure out how to fix this problem! It would NEVER happen for them while they had it and, as you know, they will not replace parts unless they SEE the problem. It's good to see someone has figured this out!

 

I have a 97 exp xlt 5.4 just recently as i was taking off all 4x4 lights came on (awd 4hi 4low) and my low wash light came on also. When they come on I lose all power, now my airbag light is flashing and is staying on all the time. Also my od off light flashes is this sensors?

 

does it happen when it rains if it does trust me get ur windshield checked trust me my truck use to bug out terribly in the rain it was doing its own thing when it rains water gets into the gem module and makes the truck short out go to the best windshield specialist u know and let reseal ur windshield make shure they check for the rust around the frame and fill any small holes water gets through call me if u need more info 917 604 5913