MHW100
SHO Member
Well, tried and screwed up royally at changing a Tstat.
First, I broke off the air temp sensor locking pin that was in the stock air box when removing it from the stock box. No problem because it twists and locks into place so that part seems ok.
The sensor wire isn't long enough to reach the port on the LMS CAI so had to remove that box and put the stock one back on. Must be new shorter wiring LMS isn't aware of on the 2018 that won't allow it to reach the CAI.
Installed the 160 tstat no problem but it must have lost at least a quart or more of coolant in the process. It was literally gushing out of the engine side. the engine was stone cold during the process.
For whatever reason I can't burp the darn thing. I tried the youtube - squeezing the hoses, turning on the heater, running at 2k, going around the block etc. I didn't try raising up the one side of the car. There was heat coming out of the HVAC on and off at times and temp gauge didn't show the engine was overheating but this seems dangerous given so much coolant was lost. Makes me suspect the sensor is in an air pocket and not reading the actual coolant temp which should be high after losing that much fluid.
In desperation I found the head local Ford technician this weekend on FB of all places and he said that they have a tool that creates a vacuum whenever the system is opened up and refilled. He said its not a good idea to burp it without it but could try by removing the top rad hose. The danger is the small turbo cooling tubes can get air into them if the air isn't pulled from the system.
Do you guys have any other ideas? Thanks in advance.
First, I broke off the air temp sensor locking pin that was in the stock air box when removing it from the stock box. No problem because it twists and locks into place so that part seems ok.
The sensor wire isn't long enough to reach the port on the LMS CAI so had to remove that box and put the stock one back on. Must be new shorter wiring LMS isn't aware of on the 2018 that won't allow it to reach the CAI.
Installed the 160 tstat no problem but it must have lost at least a quart or more of coolant in the process. It was literally gushing out of the engine side. the engine was stone cold during the process.
For whatever reason I can't burp the darn thing. I tried the youtube - squeezing the hoses, turning on the heater, running at 2k, going around the block etc. I didn't try raising up the one side of the car. There was heat coming out of the HVAC on and off at times and temp gauge didn't show the engine was overheating but this seems dangerous given so much coolant was lost. Makes me suspect the sensor is in an air pocket and not reading the actual coolant temp which should be high after losing that much fluid.
In desperation I found the head local Ford technician this weekend on FB of all places and he said that they have a tool that creates a vacuum whenever the system is opened up and refilled. He said its not a good idea to burp it without it but could try by removing the top rad hose. The danger is the small turbo cooling tubes can get air into them if the air isn't pulled from the system.
Do you guys have any other ideas? Thanks in advance.
