The vehicle is heated continuously by road in continuous acceleration. In discontinuous acceleration or standing, it does not heat up on the road with the caftation on it takes a long time to heat up or it does not heat up in traffic jams does not heat up. I have changed water pump, radiator plug, thermostat, the fans work well, do not lose liquid. It heats up many laps and a few at high speeds already low.
Help please I'm lost. Thank you