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2003 Hyundai Santa Fe Question: crankshaft sensor replaced, still showing same code, same problem

 

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j234, 2.4L 4 Cylinder, Chalfont, PA, July 29, 2010, 17:46
 Rookie

Original problem: Vehicle heats up and does not restart. After two hours vehicle would restart, then would stall and not restart. Check engine light did not immediately come on.
Original Fix: Crankshaft sensor has been replaced. Less than an hour later it would not start again. Waited two hours and would not restart. Tapped on starter and vehicle started right up with check engine light. Still showing original code saying to replace crankshaft sensor.

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  • Answer #1

    July 29, 2010, 18:30
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     Master

    the code for crank sensor does not mean the sensor needs to be replaced. it means the ecm does not recognise the signal, the signal is not there or it is erratic. thats why you pay for a real diag instead of a free diag from a parts person who has never fixed a car.

    Roy

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    Visitor, December 11, 2010, 18:00

    So this sounds similar to what we are experiencing with our 2003 HSF 2.4L... Several months of the car losing power, RPM's all over the board. Could restart it and be fine again for a while. Someone recommended we use SeaFoam, which we did 3x. The check engine light even went off after putting the SeaFoam in. Finally after almost a tank and 1/2 of gas it just outright died. Would not restart at all. Took it to the mechanic and the diagnostic said cylinders were not firing on #1 & #4 and that the crankshaft position sensor was bad. Replaced the timing & balance belts, and the sensor. (Mechanic ordered parts & installed them on accident, I had not agreed to the $1100 bill, that's a whole other story). But he said the bad news was the sensor he put on was bad as well. So we ended up having our friend do the work and when he put the sensor that I purchased on, the car will still not start. I'm wondering if it's just the wiring connecting the sensor?

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