Sometimes wont start?

[paul6]

Hey guys, nearly every time i start my car, the lights in the dash always light up, bot it doesnt even attempt at starting, takes me about 4 or 5 times to get it going. Engine doesnt even try to start, but when it does it fires up fine.

Recently had the colipack changed (noticed the car tends to 'miss' now and again), do you think it could be the plugs? im led to belive though that if i have faulty plugs the engine will at least try to turn over?

Battery in fob? (long shot maybe)

Cheers Guys, Paul

 

[W111ALG]

Bad earth somewhere?

 

[Burnz0]

its most likely the TDC/crank sensor which needs replacing or cleaning. Apparently the standard ones are s**t and Renault now sell an improved (blue) one or you can just clean the end of it with some WD-40 and it should probably be fine.
Do a search for it on here as there's a guide and it should only take half hour tops.

 

[EngineerD]

Bad earth or crank sensor, I would bet on crank sensor personally.

 

[FlamingMonkey]

TDC/Crank Sensor

 

[paul6]

cheers guys, will have a go at cleaning it tomorrow.

 

[gav182]

If the car won t crank intermitently it ll be the female spade terminal on the starter solenoid has a poor connection . (car will still turn over if poor connection on crank sensor just won t fire , but from what you ve described it doesn t crank )

 

[Flooky]

Yep, had the same problem my self.. The car even tried to cut out when going above 4k. Replaced the TDC sensor and all is fine again :approve:

 

[Curtis!]

Mine won't start sometimes, but will after touching the wires going into the crank sensor. Annoying being in a random car park popping the bonnet to mess with it to start.

EML and STOP light are up aswell, if there your lights?

It's not a 172 mind.

 

[Rasclart]

I had/have this problem.

Got to the point last week where it died and would not start if you bent the TDC sensor plug slightly it would start and then stall if you let go. Ordered one from Ebay. As a temo fix I took the sensor off, cleaned it and then chopped the plastic casing back a bit soldered some wire onto the pins and then spliced into the original wiring (As you need to chop this when you fit a new one)

It has got me back up and running for now anyway.

 

[Flooky]

I dont mind forking out little cash on a TDC sensor, knowing that its good for another 40k! but having to buy the new loom aswell which worked out to be more expensive than the sensor

 

[Martin_172]

just clean the sensor 90% of the time thats fine, if not just replace it

 

[Curtis!]

Can you just pull the crank sensor out? Give it a clean with some WD40 etc and pop back in?

 

[Martin_172]

yep 2 bolts to remove it, its on top of the gearbox

 

[Curtis!]

Will try that tomorrow and see how my problem goes on. Cheers!