paul mc Posted June 16, 2013 Share Posted June 16, 2013 As a matter of course to try and cure idling problems, i am going to replace the coolant sensor on my 3.5 V8 flapper. The two sensors at the front passenger side of the engine have excatly the same plug (how useful!), but what do they both do? Which one is the coolant sensor, i.e. is it nearest the front of the engine, and what does the other one do? Thanks, Paul Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted June 17, 2013 Share Posted June 17, 2013 Other one is the thermotime switch, it activates the 9th injector when it's proper cold. Hopefully checking them with a multimeter will show one is either open or short circuit (switch) and one has resistance (sensor). Quote Link to comment Share on other sites More sharing options...
V8david Posted June 17, 2013 Share Posted June 17, 2013 Thermotime switch is nearest the front, temp sensor just behind it. Careful when buying a coolant temp sensor, there's some absolute sh*te about. I gave up in the end and tested mine to find it was ok anyway. Quote Link to comment Share on other sites More sharing options...
paul mc Posted June 17, 2013 Author Share Posted June 17, 2013 thanks for the help. I've bought an OE sensor so will whack it on when it arrives. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.