My mom is going to change her radiator fluid but being the widow of a mechanic she knows to check things out first. Issue: she cant find the radiator cap on the radiator itself, but she says there is a pressure cap on the reservoir tank. is there no cap on the radiator itself? This seems unusual to me but i have not been a mechanic sinse HEI came out in the 70s so any help is appreciated here.
Thank you Allen