Grand Vitara 2005 1.6 - 3p squeals a strap.

It's not about that; it's that when you start the car in the morning, the alternator, through the regulator, connects at full capacity until the battery is recharged. While in this function, it puts additional stress on the belts. Belts tend to stretch when new, so try retensioning them as follows: on the longer side between the pulleys, place a ruler and, when tensioning, make sure there's about 3 mm of slack. When under load, that tension should be sufficient

Greetings. Check the belts for moisture every morning before starting the engine. A damp belt will slip no matter how tight it is. Also, check for coolant leaks. I had a similar problem with squealing belts before starting the engine, and it turned out to be a small hose leaking and dripping onto the damper.

Okay... that could be...
thanks...