What's new in this issue. Problems with new radiators The Ministry would like to hear from people who have had problems develop with new radiators within 6 months of installation and being attributed to 'stray current' or problems with their car s electrical system. There have been incidences of people getting their radiator replaced after experiencing cooling system problems, only to find the new radiator develops a leak a few months later. Some mechanics are blaming 'stray current' as the culprit and motorists are being forced to replace their radiators again. Stray current is the presence of current from the car s electrical system travelling through the radiator and is blamed for causing corrosion.
Stray current is detected by using a stray current detector, which is inserted into the radiator.
The reading determines whether stray current is present. Our initial investigation has produced conflicting evidence about the validity of stray current detectors.