Crankshaft Position Sensor May be Damaged if Timing Belt Breaks on Kia Optima

Timing belts can break prematurely and cause serious engine damage. When replacing a broken timing belt, the crankshaft position sensor should also be replaced as it most likely has suffered damage as well.

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Average mileage: 113,162 (53,000–186,952)
Engines affected: 2.4L 4 Cylinder, 2.7L V6
11 model years affected: 2001, 2002, 2003, 2004, more2005, 2006, 2007, 2008, 2009, 2010, 2011
25 people reported this problem
7 people shared problem details
2004 Kia Optima- 2.4L 4 Cylinder186,952
it just shut off while driving and acts like it wants to crank but won't and i have had the timing belt replaced and got heads fixed on the motor. i replaced the fuel pump and spark plugs
2004 Kia Optima- 2.7L V6122,000
Engine has 58000 miles on timing belt replaced in 2010. Car made a thunk noise and CheckEngineLight came on, accelerator pedal wouldn't work. Came up with 0335 (Crankshaft Engine Sensor Position A)code as primary fault, and 0102 (MassAirFlow, low input) code as secondary. Kia suspects engine jumped timing but belt may still be on the pulleys and gear teeth. First real major problem other than AC compressor replacement last year.
2003 Kia Optima- 2.7L V6145,000
This was recalled on the '01 and '02 Kia optimas. Mine is an '03. Just my luck. Also now the driver's sdie door won't open. This car is like freaking Christine.
2003 Kia Optima- 2.4L 4 Cylinder120,000
replaced cylinder head and pistons belt waterpump C. P. S. timimg belt and balancer belt trys to start but fail ...
2007 Kia Optima- 2.4L 4 Cylinder124,000
Basically same as the others. Now in the process of looking for a engine :( it's sad that warrant and car are paid off and now I've have problems!!
2003 Kia Optima- 2.4L 4 Cylinder53,000
replaces crankshaft position sensor at 50,000 miles
2003 Kia Optima- 2.4L 4 Cylinder60,999
My driver door is stuck as well and its a 03
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