2018 Cadillac XT5 3.6 P0128 Coolant Temperature Sensor

[@alenjones5606]

I consider myself an above average home/ shade tree mechanic. I have a decent garage with really nice tools. I’ve watched other videos about this job and they left me with questions. I wasn’t sure if I should attempt this job until I watched your video. You are very easy to listen to and very informative. Thank you so much. I’m headed for the shop with your video in hand.

[@richierock1300]

Yeah it’s pretty easy going

[@walterlutner2972]

This is one of the best “how to videos” I’ve come across for any repair and I’ve watched a lot of vehicle repair videos.

[@kevinthompson4189]

GREAT VIDEO BOSS, STRAIGHT TO THE POINT!🤝🏾

[@BenBrown-thehandcoder]

How did you determine it was the sensor instead of the thermostat? I see lots of people replacing the thermostat with these symptoms.

[@richierock1300]

Scan the engine coolant temp sensor if bad it will be out of the ball park plus a/c won’t work and cooling fan on high when engine isn’t even hot yet

[@frank2fisher]

No AC and temperature gauge at 0 and power steering assist message yes it fixed it. Hardest part of the job is having the right tool or socket to get it out and a little tiny hook tool to get the red tab to pull up to get the connection off. Also you need to clear the codes when done to get the check engine light off.

[@jamesjames7673]

Looks like low radiator fluid to me ? Low fluid alone will cause the error as well.

[@crx4life495]

Great detailed video! Thank you Sir!!!

[@CristianCastro-bs2jq]

Perfect

[@عصامالبليهيأبوعبدالكريم]

Hello, I have the same problem, but the fans are always running and the temperature indicator is not reading, and when I scan the codes with the scanner, the situation returns to normal. Is the problem with the temperature sensor or with the temperature valve?

[@richierock1300]

Sensor

[@dougb6545]

You happen to have the part number you used?

[@richierock1300]

If it’s not in the video then I don’t purchased from dealer

[@bobcook8576]

Gm tsb on this. Your car may be under warranty.

[@phuha4355]

This error must be wiring error. My car changed radiator, thermostat…. Bit it still happens. If the error coming from a hardware like the thermostat, I won’t be reset right away in seconds with a code reader. Cadillac should address it ASAP.

[@richardb7093]

This has been a known problem since May of 2017. A bulletin was distributed to dealerships because dealerships were replacing steering systems to solve the warning message. The bulletin stated not to replace steering system but did not address the assist warning issue. Some car companies think is cheaper to anger the customer and chance a recall then correct bad designs..

[@itsurboy9032]

What about a semi deep swivel

[@richierock1300]

Whatever you can fit in there but plastic connector has to go up into the socket most sockets won’t allow it they are not open enough inside

[@richierock1300]

Plus the cylinder head sticks over it

[@jasonlgadsby]

This damn car will be the death of my sanity. Did the new sensor fix the issue? Our car seems to have intermittent electrical gremlins and its driving me to drink...

[@richierock1300]

Yup had another one fixed it for a day or two went back the same way sent to dealer they put a pcm in it

[@jasonlgadsby]

@@richierock1300 that's what I'm afraid of. Well, jumping in this afternoon, fingers crossed!

[@pjimmbojimmbo1990]

Great gotta take the Effin Intake off to change the front 3 spark plugs. Jesus Effin Christ, I hope the Engineers that designed this, get run over by XT5s. When any of these sensor need changing, I'll just trade the Vehicle, easier and likely Cheaper