Fiat Palio 1200 model 2003/4 cut out on long distances but not on short distances.

Question edited for clarity.
Question moved to model category.

This is a very obscure make and model in North America, but this link might work better for you.

https://www.google.com/search?q=Fiat+Palio+1.6+replace+radiator

Generic video.

It appears to be a known problem.

Try cleaning the Throttle Body, plus there are some ideas in the link.

https://www.google.com/search?q=2003+Fiat+Palio+1.2%2C+High+Revving+up+and+down

..

Was the TPS looked at or is there any codes that can help you that are present in the computer

I have information for the 04 Palio but my system won't allow me to copy it.
If you don't receive other replies I can attempt to type an abbreviated version of the fitting procedure if that is what you want.
It seems a fairly straightforward and intuitive process similar to many others and the usual and only likely problem is the tensioning of the belt. Fiat use a service tool with a sliding weight to which no other force is applied but in the absence of this a generic tension gauge would suffice. After more than 30 years of fitting timing belts I would have no hesitation using nothing more than experience, though it would perhaps be wise to increase the checking and future replacement frequency to perhaps that of some of the earlier models.

As the water pump is driven by the timing belt it deserves a very close examination prior to refitting the belt to make an educated guess whether it will go the distance to the next scheduled examination.

a dodge Fiat?
they are related now. Fiat owns Dodge.
but this is a pie in the sky question.
300k miles of serviced properly, not driving in road salt, and real lucky.
you said mileage. but is that
MPG
or odometer, as both are Mileage.

The old trick is to cut the current belt in half along its length, then remove the front most half of the old belt. Slide the new belt up to the remaining half of the old belt, then cut of the old belt and push the new belt fully on to the sprockets.

Flush out coolent system, make sure your cooling fan for the engine is not faulty, replace waterpump and thermostat, fill with coolent, and im 99% sure you will not overheat as long as your coolent is topped off. Guarenteed!

Try checking fuel pressure regulator or...... Your cold start injector is pouring fuel out if fitted to that model

where is timing marks fiat palio 1.6v petrol modele 2002

my fiat palio petrol 2001 modal vehile good running but 15km after running engine poor piukup what is the reason