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Replace Crankshaft Position Sensor after New Battery?

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Hi everyone, have an issue with my car and I’m hoping you kind people might be able to help 😊

I own a Ford Focus Style TDCI 2008 1.6, 5dr.

I had a new battery installed from a local garage.  A couple of days later I received a ‘Engine Malfunction’ warning appear on the vehicles display while on the motorway and the car seemed to lose some power. 

I can still drive the car but it will not have the same power when the warning sign appears (Warning usually appears around 1 minute after starting the car)

I took it back to the local garage and had a diagnostic check which found the following error codes:

-P0335 – Crankshaft Position Sensor

-P0704 - Clutch Switch Input Circuit Malfunction

-P0380 - Glow Plug/Heater Circuit

The garage said that they think if the replace the Crankshaft Position Sensor it should solve the problem but no guarantees.


My questions are:

-Could the newly replaced battery be causing these issues?

-How long does it take to replace the Crankshaft Position Sensor? What quote should I expect?

-And does anyone else have any other ideas what the problem could be?



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It's more likely to be the glow plugs failed tbh, quite common on the 1.6TDCi.  Did the garage check the plugs at all?  Happened to my 2008 1.6TDCi two years ago to the day!

Engines don't usually start with a failed crank sensor.  

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Thanks for the advice Tom. I don't think they did check the plugs, they just said fixing the crankshaft sensor would be the best bet.

Did you receive multiple error codes too when it happened?

Also, are the glow plugs an easy fix? 

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Does anyone know what a reasonable price would be to have a set of glow plugs replaced?

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