i have a bmw 520i 1996 auto,i am getting the temp gauge warning light come
on after 15 to 17 miles into a journey, i am losing no water and have been
told that the impellas have become detached off the back of the water pump
hence the mileage done before it starts to overheat and that this is
common on my model can anyone verify this or suggest any alternatives
When the fan clutch goes bad it has a very unique signature. The engine
stays cool as long as the car is in motion (forcing air through the
radiator), but overheats when sitting still or moving slowly.
A bad water pump will overheat regardless of whether the car is moving
forward or not.
think that could be the water pump then....
if the impeller is slipping on it's shaft, it might be just enough to
circulate the water when the engine isonly idling, but when the engine
speed increases, it slips more and can't circulate enough water.
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.