Can plastic radiators be repaired?
 

I've noticed a small crack on the top of the radiator on our '90 ES250. It's just starting to weep, is there any repair possible other than replacing the radiator?

Don't know if you can repair it. Why bother? If you are doing the repair yourself radiator are cheap: $60 to $130 at RockAuto.

I've seen JB weld and some types of epoxy used as short term repairs, and by short term I mean to allow the person to drive to the parts store or get off the highway, but I wouldn't suggest it as a permanent fix. Just pony up for the cheapest radiator and replace it as its cheaper than replacing the engine when you inevitably overheat the car with a temp fix.

Hi. yes you can repair that radiator. but there's no point.

That radiator started out being black, as time went by and hundreds of heat and cool cycles it went from black, to green to brown, to light brown. At that point it will start to crack on the inside, which is what all those lines on the outside are.

as soon as you repair that crack, another will appear within a day or so elsewhere (the next weak point). You'll be chasing them forever. It's cheaper just to replace the radiator.

rockauto has denso radiators for good prices and denso is toyota oem brand