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Matt, Engineer
Category: Kia
Satisfied Customers: 21615
Experience:  Mechanical Engineer BEng Hons22 years experience in car engine industry, 10 years in formula 1
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Took my 2006 Kia Sedona in oil change. Oil light had NOT

Customer Question

Took my 2006 Kia Sedona in for an oil change. Oil light had NOT been on. They changed
every fluid possible. Cost over $400. Now my oil light will flash every once in a while
when I let off brake.
Submitted: 1 year ago.
Category: Kia
Expert:  Matt replied 1 year ago.


the oil light will flash if the oil level is low ?

so I'd 1st check the level on the engine oil dipstick and if thats OK then locate the oil pressure switch on the oil filter housing and check its wire connection and the wire running to it for any damage or corroded connections

if this is OK then consider replacing this switch

and if this doesn't help then plumb in an external pressure gauge at this point to measure the real oil pressure of the engine

As its intermittent and you have no rumbling or rattling noises from the engine its likely to be an electrical fault so 1st check the connection to the pressure switch is bright and clean and check back along the switch wiring for any signs of damage to the insulation

As if the wire is grounded out at any point then this will also turn on the light.

if this is all OK and the oil pressure is at least 1.3Bar ( 20psi) at hot idle then replace the switch

If you do have a low pressure reading and to turn on the light it will be very low about 5psi then replace the oil pump and ensure that the pump pickup in the sump hasn't come loose or is blocked

Expert:  john aka eauto replied 1 year ago.

have you checked the oil level?

Expert:  Matt replied 1 year ago.


do you still need help?

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