Coolant Temp Sensor

  #1  
Old 01-18-2019, 06:19 PM
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Default Coolant Temp Sensor

Where the heck is this thing located. Iím sick to death of paying a mechanic to fix little things like this. Please help.
 
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Old 01-18-2019, 06:27 PM
lev
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It's under the third intake runner, screwed in the head with a plug on it naturally... It's hard to get to it with the intake manifold on but not impossible. Unplugging it the hardest, then usually with a long extension there is a straight shot onto it, forget the size, (19mm?)... Coolant loss is minor.
 
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Old 01-18-2019, 06:29 PM
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Do you think itís possivle this could cause my cold start issues? With it loping for about 20 seconds. The engine runs fine otherwise.
 
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Old 01-18-2019, 07:37 PM
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you test it by measuring the resistance when its hot, and when its cold. problems are as likely to be the connector or the wiring harness as the actual sensor.
 
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Old 01-19-2019, 10:48 AM
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Originally Posted by tylswil View Post
Do you think itís possivle this could cause my cold start issues? With it loping for about 20 seconds. The engine runs fine otherwise.
It absolutely can be caused by this sensor! This is the first thing I'd look at in case of hard cold starting, well, after battery...
 
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Old 01-19-2019, 11:16 AM
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Sweet thank you very much
 
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Old 01-19-2019, 03:01 PM
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this guy changed out the CTS without removing the intake manifold. caution for language but like his style

 
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Old 01-19-2019, 03:09 PM
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Will this be in the same location as a 940?
 
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Old 01-19-2019, 04:03 PM
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Originally Posted by tylswil View Post
Will this be in the same location as a 940?
I just replaced mine in my 89 740 but I was also changing the PCV box and cleaning the throttle body. If you have the TB off it's pretty easy. I used a long 3/8" extension and a 7/8" deep socket. Was a pretty easy job and when I did it on a cold engine I didn't get much water come out. If you keep the cap on and no pressure on the system coolant just dribbles out.
 
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Old 01-19-2019, 04:16 PM
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Originally Posted by tylswil View Post
Will this be in the same location as a 940?
should be, yes.
 
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