Find another mechanic (that really knows about Fiats) and get it done properly next time.

I suggest taking to dealer who will first check the timing using timing tools.

the new 8v need timing tool, he probably didn't know that and has set it up wrong

did they lock the cam and crank as above BEFORE fitting belt?

Did they carry out a phelonic wheel relearn after replacing the belt?

the tensioner so long as it maintains enough tension to hold the belt in place shouldn't cause a problem initially unless its that loose its skipped a couple ot teeth


(oh and welcome to the forum :wave: )

Andy Monty said:

phelonic

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That's a new one, Andy!

sound like he never timed a fiat before get some else to check it over, hopfully he's not damaged the knock sensor.

damaged knock sensor?

yer a knock sensor detects engine knock sending a signal to the ecm they ecm then picks up on weither this has an abnarmol amount of knock and in turn controls the timing of the engine,unsure as to if these engines have them fitted but we certainly use them in the agricultural industry

:wave: thanks all, wish it was my old K reg Panda, 1000cl since it only cost me £250 I did all the servicing by ear!
That summer enjoying the extra 5HP on the A57 just after ladybower bridge on the way to manchester I let her out, cresting that hill bend as you start to rise above the water at about 50mph there was a massive Ram sheep standing looking directly at me in my path. Now Pandas have bad rep for violence but mine seemed to zip round it like a cartoon car without rolling, no time to react or register if anything was coming the other way which there was! I wrenched the wheel all the way right and immediately seeing the other car wrenched it all the way left and back on course. Figuring in that microsecond that either object would have destroyed my lovely little car.
Is lightness is better than EBD? well I have not met a sheep in the GP as yet but my experience so far in the car approaching danger was joyful even though the AA only gave the brakes 65% front 23% rear shortly before I hit a bend too fast after we first got it. So if I have any money left this week i will pay for the timing to be checked myself..

suddes15 said:

yer a knock sensor detects engine knock sending a signal to the ecm they ecm then picks up on weither this has an abnarmol amount of knock and in turn controls the timing of the engine,unsure as to if these engines have them fitted but we certainly use them in the agricultural industry

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but how would it get damaged?

normally there a mounted on the front of the engine so if they have damaged the positioning of this due to the cambelt change

suddes15 said:

normally there a mounted on the front of the engine so if they have damaged the positioning of this due to the cambelt change

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I think you're getting your sensors mixed-up.

The knock sensor is as crucial to valve timing as the lambda sensor, and about as far away from the cambelt too, being tucked away under the inlet manifold.

suddes15 said:

yer a knock sensor detects engine knock sending a signal to the ecm they ecm then picks up on weither this has an abnarmol amount of knock and in turn controls the timing of the engine,unsure as to if these engines have them fitted but we certainly use them in the agricultural industry

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suddes15 said:

normally there a mounted on the front of the engine so if they have damaged the positioning of this due to the cambelt change

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1) if fitted the knock sensor is mounted (on this engine) under the inlet manifold under spark plug cylinder 2.

2) It cannot be damaged, its piezo however if removed it needs to be torqued correctly or will give false reading however this is rare as there is no need for it to be removed.

3) It's main use is pre-ignition or 'pinking' as us older ones call it, nothing to do with the OP's issue.