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What causes the OD off light to start blinking on a 2002 Ford Explorer?
Wiki User
∙ 11y ago
I have Ford Explorer 2002 too My OD was off to blinking saying low oil pressure I had oil changes and it said no pressure..I took one mechanic he said it was senors malfunction told me no worry about it..5 month later i had no speed in city i couldn't drive 25 mile i only could drive it 10 mile per hr it would go..then pulling one side and then made loud noise..the light came on OD saying need transmission check..i took in mechanic he check Transmission Fluid it was fine..then he check OD he told me the OD should been on..the mechanic took my truck around block and then look underneath to look at transmission he said my 3 gear is missing.. I'm going what..he said your transmission is gone..he said OD should been on for over drive, especially if you drive on high way I mess up transmission it burned it up.
An addition:
The OD light is for overdrive. It refers to the higher gearing in the transmission.
The OD light should be on or off. If it is flashing, then it indicates a problem condition. This is not an engine condition. This has nothing to do with engine oil. Transmissions have their own separate oil and it is called transmission fluid.
A mechanic who says the OD sensor is bad should not be believed. A wrong guess like that can ruin the transmission because the true cause is a real problem. The OD sensor should be replaced if it is suspected faulty.
Driving with the OD on or off (light on or off, not flashing) will not harm the transmission. It is designed to work in both modes. It is a matter of an adjustment in power and efficiency between the two, not a required state that must be used at certain times.
There are a number of other questions related to the flashing OD light on Fords which are in the related questions links and offer suggested answers.
Wiki User
∙ 11y ago
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