Question about 1993 Ford F350
This is causing the od light to blink at idle speed and trans to shift funny sometimes.step on gas and light stops blinking.let off gas and coast.....tach goes back to 0 and light blinks until I hit gas again.Took it to trans shop and they did eec test and trans is good.they said that it reads bad throttle position censor.pulled it and tested ok.experienced trans guy said these trucks get a short somewhere in harness causing problem.Has anyone experienced similar problem to help so I can go directly to source and save $$$$$$$
Yea the 93 to 95 trucks never had a tach that works very long
and first the Tach does not make the od light blink or ck engine lgt
the crank trigger does this little thing is located right in middle front of engine between the vac pump and pwr steering pmp looks like a brass bolt with wires comming out of the back of it costs about 30 bucks (don't forget the locktite blue)
now that should fix the od lights and the ck engine but it may not fix the tach thats done in the tach driver module on back of tach in dash
you can replace this but my vote it's too expensive I did mine just fine with a after market one(50 bucks), bolted it right in front of old one, it hooks up super easy gets it's signal off the alternator stator
im sort of suprized it starts ok with a bad crank trig (eec needs to see +50 rpm to start fuel flow to injectors )
any good shop with a eec scanner can see this in just seconds
Posted on Oct 06, 2009
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Posted on Jan 02, 2017
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