Vince P Posted July 25, 2004 Report Share Posted July 25, 2004 1994 Seville 4.6 SLS 150,000 miles How do you get to the ECT (Engine Coolant Temparute) sensor. I have tried several different ways and have not as yet suceeded. My latest thinking is: 1. Drain the Coolant 2. Remove the hose, plastic tube combination that runs from the water pump housing to in front of the ECT sensor 3. Move, to one side, a cable that runs to the throttle body 3. Put my hand from top of the engine past the right side of the brake master cylinder. Then turn my hand at a right angle to the center of the engine. Will this work? Is there an easier way to get to the sensor? I keep getting a P073 History code. I want to check the connector and wiring first. Then if necessary change the sensor. In great appreciation I remain Vince P Link to comment Share on other sites More sharing options...
adallak Posted July 25, 2004 Report Share Posted July 25, 2004 a history code disappears in 50 ignition cicles. You can clear codes as well to see if they appear again. The saddest thing in life is wasted talent Link to comment Share on other sites More sharing options...
Vince P Posted July 25, 2004 Author Report Share Posted July 25, 2004 Adallak, I have cleared it many times. Sometimes it does not show up for a few weeks. Sometimes is shows up every day. It is always a history code. When I monitor the sensor output (in degrees centergrade), it is always reading correctly. Vince Link to comment Share on other sites More sharing options...
adallak Posted July 25, 2004 Report Share Posted July 25, 2004 looks like not too much to worry about... but cooling system is not something to neglect . Let's see what others think about it. The saddest thing in life is wasted talent Link to comment Share on other sites More sharing options...
Oldgamer Posted July 26, 2004 Report Share Posted July 26, 2004 Check this link: http://www.cadillacforums.com/forums/showthread.php?t=15178 I spent two days changing the temperature sensor. If I was you, I just clear the history codes and wait. If it's not bothering too much, it's better to leave like it is for better time. I did not remove any hoses, but it was really hard to access to the sensor. Link to comment Share on other sites More sharing options...
Vince P Posted July 28, 2004 Author Report Share Posted July 28, 2004 Oldgamer Thank you for the information and the step by step procedure to get to the ECT sensor. I very much appreciate it and I appreciate the warnings. I did realize that it would be so complex. I took a careful look my engine again and believe that if I remove the heater hose and plastic sections I can get to the sensor from the top of the eninge. The next time that I change my coolant, I will try to get to the sensor. If I am sucessful I will write the proceedure for the group. Again Thank you Vince P 1994 SLS 150,000 miles Link to comment Share on other sites More sharing options...
Logan Posted July 28, 2004 Report Share Posted July 28, 2004 You just have to change it .....really fast. You dont have to mess with the coolant at all....it will be ok. On a cool engine...have the old sensor unscrewed almost to the last lick....then do the swap by hand with the new sensor. Maybe you will lose 8 ozs or something....nothing to worry about. Logan Diagnostic LLC www.airbagcrash.com www.logandieselusa.com www.ledfix.com www.ledfix.com/yukontaillightrepair.html www.ledfix.com/ledreplacements.html www.ledfix.com/j42385toolrental.html Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.