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Discussion Starter #1
Hi all, quick question on replacing the coolant temp sensor as i've had no luck finding the answer. Do I need to drain the system before changing it or can i just swap out and maybe top up any lost coolant?
Cheers in advance.
 

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You can probably get away without draining the system, have a look at where the sensor is in terms of how close it is to the top of the coolant system. If it's at or near the top then just pull it and either collect the coolant that escapes or stick your finger over the port until you put the new sensor in.

Otherwise just drain the block rather than the whole system.
 

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Discussion Starter #3
You can probably get away without draining the system, have a look at where the sensor is in terms of how close it is to the top of the coolant system. If it's at or near the top then just pull it and either collect the coolant that escapes or stick your finger over the port until you put the new sensor in.

Otherwise just drain the block rather than the whole system.
Thanks for that Rampant, i'll give it a go. (y)
 
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