car trembles on a slope

my car 307 1.6 hdi 90 is going uphill on the shiver. I do not think the pressure was lining, it was 40 thousand different. I do not think there is a fall from the traction injector and turbo is fine. motor ears are coming to my mind but i don't know much what could be the problem

I have this incident, even though it's not too extreme. Are the injectors checked? I was thinking of having them checked when I got the opportunity.

no problem in injectors