Having done some searching in this forum, I am trying to locate a fault with the electric cooling pump which feeds the turbo. From what I can gather there are four components which can fail;
a. relay
b. temperature sensor
c. the pump
d. wiring
Not knowing how the circuit comes active, can someone explain how the system works? Does turning on/off the ignition activate the pump, so it runs for 30 secs or does the engine need to reach its ambient temperature? I read one post that earthing the sensor lead has the same effect?
I suppose the final option (might be the easiest) would be to hot wire the pump.
And finally, OPC have quoted about £150 notes to replace the pump (which seems suspiciously like the cost of the main coolant pump). Does this sound like the correct price? Is there also a PET guide for 944 turbo's - I could not find one in the general discussion forum? Thanks
a. relay
b. temperature sensor
c. the pump
d. wiring
Not knowing how the circuit comes active, can someone explain how the system works? Does turning on/off the ignition activate the pump, so it runs for 30 secs or does the engine need to reach its ambient temperature? I read one post that earthing the sensor lead has the same effect?
I suppose the final option (might be the easiest) would be to hot wire the pump.
And finally, OPC have quoted about £150 notes to replace the pump (which seems suspiciously like the cost of the main coolant pump). Does this sound like the correct price? Is there also a PET guide for 944 turbo's - I could not find one in the general discussion forum? Thanks
