Have a 97 accord with 187K on it - radiator recently started leaking in
the upper seam on the engine side. A local shop replaced the radiator
- took 2 attempts to get one that would hold fluid - but they did not
replace the cap.

Question - do radiator caps as they age ever hold back too much
pressure - got stuck in some heavy traffic when the radiator started
leaking. Wonder if I should replace the cap.

Thanks