Overdrive light flashing
#1
Overdrive light flashing
2000 F150 4.6 Triton 2wd
Overdrive light started flashing randomly today on my way home from work with no noticeable changes in shifting (Slipping, Hard shift, or erratic shifting ect.) it just flashed the whole way 8-10 miles. Also I had to replace a fuse to the overdrive a few days ago. Ive read on here and a few other forums that it could be anything from sensors to slipping clutches or solenoids. But none seemed to match my exact symptoms and no one mentioned the fuse blowing prior to the flashing light. The fuse leads me to believe its an electrical issue like a wire grounding somewhere but I wanted to get a second opinion before I jump to conclusions and start replacing parts or worst case take it to a dealership or shop. Thanks in advance.
Overdrive light started flashing randomly today on my way home from work with no noticeable changes in shifting (Slipping, Hard shift, or erratic shifting ect.) it just flashed the whole way 8-10 miles. Also I had to replace a fuse to the overdrive a few days ago. Ive read on here and a few other forums that it could be anything from sensors to slipping clutches or solenoids. But none seemed to match my exact symptoms and no one mentioned the fuse blowing prior to the flashing light. The fuse leads me to believe its an electrical issue like a wire grounding somewhere but I wanted to get a second opinion before I jump to conclusions and start replacing parts or worst case take it to a dealership or shop. Thanks in advance.
#2
You need to take it to a shop that has an OBD2 code scanner that can read Ford transmission codes, or buy your own scanner. That's the ONLY way to troubleshoot this. When the OD light flashes, it's setting a code.
#7
Well, you have a short that blows the fuse.
Wire in the shifter to the light and OD switch gets rubbed through the insulation from the shifter movement over time.
That may be all there is to the trouble but you have to fix it first to see.
This is why you need to give all the info, not just blowing a fuse with out telling which one, in the first post..
Good luck..
Wire in the shifter to the light and OD switch gets rubbed through the insulation from the shifter movement over time.
That may be all there is to the trouble but you have to fix it first to see.
This is why you need to give all the info, not just blowing a fuse with out telling which one, in the first post..
Good luck..
Last edited by Bluegrass; 10-23-2014 at 08:25 PM.
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#9
Like I linked, a scanner is only $150, it's not a high end item.
#10
I thought by saying that the overdrive fuse was the one I replaced would be enough information. I didn't know there was more than one fuse to the overdrive. I guess I still don't know because I haven't checked. Very new to Fords and how they are set up electronically.
Will check to see if the wiring has worn a hole tomorrow. If that's not the case I guess its off to a shop.
Thanks for the feedback. Will post what I find out.
Will check to see if the wiring has worn a hole tomorrow. If that's not the case I guess its off to a shop.
Thanks for the feedback. Will post what I find out.
#11
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The chafed wiring harness can cause an intermittent, random, flickering TCIL or a blown fuse, or a failure of the switch to work, all depending on which wire's insulation in the harness wears through first.
If that description of the light as "intermittent, random, flickering" matches what you observed, you do not have a transmission problem nor do you need a scanner to resolve the problem.
If that description of the light as "intermittent, random, flickering" matches what you observed, you do not have a transmission problem nor do you need a scanner to resolve the problem.
#12