172 wont start, just turns over

[Paul172sport]

Went to the car this morning and it just turned over without firing up.
immob' light wasnt on,

ended up bump starting it down the hill

any thoughts?

 

[JackJack]

Could be crankshaft sensor

 

[Budgie]

Not crankshaft sensor.

Crank sensor.

On top of the gearbox where it meets the block. Held on by 2x 10mm bolts.

 

[Gray]

TDC sensor.

 

[Paul172sport]

where abouts is the sensor and how do you change it, is it a simple DIY job?

 

[Turkish]

Airbox out and it's visible on the block just below the thermostat housing it's got a curved bracket and is held on with a bolt (10mm head iirc) either end. Not hard just a bit of a faff due to it's location.

 

[Paul172sport]

is this it?

 

[Turkish]

Yup.

 

[Gray]

bingo.

 

[Paul172sport]

would this also cause the revs to be a bit random too, noticed this evening that the revs would be a bit higher at idle but a blip would settle it back down to normal.

 

[Paul172sport]

called the dealer to order in, they have said there is a new loom and plug that needs splicing into the car.

anyone know when this new plug came in and how i check if i already have it on the car as it will save alot of time and money if i just need the sensor and noth both.

cheers

 

[tim_hybrid]

The new version has blue plastic, rather than black plastic shrouding the connector plug.

 

[Paul172sport]

if i need the loom is this a plug in item, or do you need to splice the new piece into teh existing loom?
is it easy or one for a garage?

 

[tim_hybrid]

I believe you need to solder the new piece of loom in, but my engine already had it fitted when i got it. It's only a small job for a garage if you're not technically minded.
This is what the new sensor looks like. This is a genuine one i got from renault 2 weeks ago.

 

[TheEvilGiraffe]

Inertia switch ? Worth a poke.