# 2002 Ford Explorer 4wd not engaging---

**URL:** <https://community.cartalk.com/t/2002-ford-explorer-4wd-not-engaging/8628>\
**Category:** Maintenance/Repairs\
**Created:** [December 23, 2007, 10:52pm UTC](https://community.cartalk.com/t/2002-ford-explorer-4wd-not-engaging/8628 "2007-12-23T22:52:31Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![graham](https://avatars.discourse-cdn.com/v4/letter/g/4af34b/32.png) [@graham](https://community.cartalk.com/u/graham)\
**Post date:** [December 23, 2007, 10:52pm UTC](https://community.cartalk.com/t/2002-ford-explorer-4wd-not-engaging/8628/1 "2007-12-23T22:52:31Z")

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A few weeks ago my battery was too low to start engine; got a jump start, and after that my 4x4 high and 4x4 low lights continue to flash on the dash display about every 2 miles. Now I have discovered that my 4wd system is not engaging and push buttons do not function. Suggestions before I take it into the dealer???

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**Author:** ![mcparadise](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mcparadise/32/32_2.png) [@mcparadise](https://community.cartalk.com/u/mcparadise)\
**Post date:** [December 24, 2007, 12:43am UTC](https://community.cartalk.com/t/2002-ford-explorer-4wd-not-engaging/8628/2 "2007-12-24T00:43:49Z")

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Suggestion: Consult the owner’s manual. What does it say about the flashing lights? It’s hard to believe a dead battery renders the 4WD inoperable on this vehicle.

You might want to consider having the trouble codes (if any) read at a local parts store. Most will do it for free, and if there are any codes they may help you figure out what’s wrong.