Hi Guys I have a 2004 Sonata with 20,000 miles on it.

The problem I have is once in a while the spedo will drop to zero then come
back. If the cruse is on is will drop out, also the green cruse light goes
off. You can't reengage the cruse until the spedo is steady again. This
may happen every minute for a while or not happen for days or a week. Any
ideas?

TIA
Paul

 

Probably the vehicle speed sensor (on the differential) or the plastic
gear
attached to it.

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