Okay, first time its happened, but from what I know (or think I know) about my truck, it's a sign of the ECM. My tach randomly shut off when I goosed it a little, and my truck went into limp mode with the Check Engine light on. Continued for about 2 miles, then everything went back to normal. Any input on the situation? (Only mod to the truck is a Edge comp, which is left at setting 2)

 

Any codes?

 

That happened to my 99 turned out to be a bad crank sensor.

 

Yup thats whats going on with my 2000 right now. bad crank sensor. got a new one coming

 

X3 on CPS. Check your local parts stores they should carry them.

 

Sweet. I'll look into it and find one. Is it a one time thing? Happens everynow and then? Or just a sign of the inevitable?

 

mines a cam sensor

 

Yep 01's and 02's only have cam sensors.

 

Will this cause the tach to not work?? A buddys is not working and the ckp tested out good...

 

It very well could.