2006 206cc

[Frenchie24]

Hello,
I have a Peugeot 206cc 2006. It cranks but it won’t turn over. Then l will go back a day later and it will start then l will go somewhere and it won’t start. Starter motor, coil replaced a couple of years ago. Called mobile mechanic he said it might be the immobiliser or crank but then why will it still start sometimes?
What might it be?

 

[seasink]

Welcome to the forum.

There are many causes for non-starts beside immobilisers, so you really need to get the OBD codes read.

I am guessing by crank you mean the crankshaft position sensor. That is a possible cause.

 

[Frenchie24]

Thank you. The mechanic had a diagnostic machine and said they were the error codes but he wasn’t sure as the car was to old for his machine. Yes l believe that’s right the crankshaft position sensor. If it is this do you know how much it might cost to fix?

 

[seasink]

Sensor failure can produce a code. Before jumping in I'd get the code value. It's a DIY job accessible through the wheel area.

For some generalised info, see

Crankshaft position sensor: how it works, symptoms, problems, testing

www.samarins.com

 

[Frenchie24]

Very helpful thank you!

 

[dunky]

If you have a second key, try that. Could be an intermittent fault that immobilizes the system.