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How To Replace Coolant Temperature Sensor 2-5L Nissan Altima
How To Replace Coolant Temp Sensor 2003-08 Nissan Maxima
Created on:
Tools used
5mm Hex Wrench
14mm Wrench
Funnel
Phillips Head Screwdriver
Drain Pan
Anti-Freeze
1. Removing the Coolant Temperature Sensor
Remove the four 5mm Allen bolts from the engine cover
Remove the engine cover
Remove the radiator fill cap
Remove the overflow bottle cap
Place a drain pan under the coolant drain
Twist the plug from the drain with a Phillips screwdriver
Replace the plug after the coolant is drained
Disconnect the temperature sensor wiring harness
Remove the sensor with a 14mm wrench
2. Installing the Coolant Temperature Sensor
Twist the new temperature sensor into place
Tighten the sensor with a 14mm wrench
Reconnect the sensor wiring harness
Insert the engine cover into place
Insert and tighten the four 5mm Allen bolts
Insert a funnel into the radiator fill
Fill the radiator with radiator fluid
Fill the coolant bottle
Replace the caps on the radiator fill and overflow bottle
Brought to you by 1AAuto.com, your source for quality replacement parts and the best service on the Internet.
Hi, I'm Don from 1A Auto. I hope this how-to video helps you out, and the next time you need a part for your vehicle, think of 1AAuto.com. Thanks.
In this video, we're going to show you how to replace the coolant temperature sensor on this 2003 Nissan Altima. The items you'll need for this repair include a 14mm wrench, Phillips screwdriver, drip pan, and a funnel with a screen or new antifreeze.
Start by removing the radiator fill cap as well as your overflow bottle cap. Under the vehicle, in this hole right here, this is your coolant drain. Using a Phillips screwdriver, twist that plug out. Make sure you have a clean drain pan to collect that coolant. Once the coolant stops pouring out, replace the plug.
Disconnect this harness by pushing in the tab and pulling it free. There's your coolant temperature sensor. Put a 14mm wrench on, counterclockwise, and it should come right out.
Take your new coolant temperature sensor and twist it back into place. Using your 14mm wrench, tighten it back up, and reconnect your harness. Fast-forward as Don replaces the engine cover and those four 5mm Allen bolts. Refill the radiator.
We're using the fluid that we drained out, we've got a funnel with a screen. Pour it back in. You can use new radiator fluid if you like. Fill the radiator directly, then fill the coolant bottle, dry the vehicle, and make sure you fill it to the proper level.
We hope this video helps you out. Brought to you by www.1AAuto.com, your source for quality replacement parts and the best service on the Internet. Please feel free to call us toll-free, 888-844-3393. We're the company that's here for you on the Internet and in person.
Tools used
5mm Hex Wrench
Torque Wrench
Gloves
19mm Socket
Ratchet
Safety Glasses
ESA53539
In Stock
Product Reviews
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3.80/ 5.05
5 reviews
5 Stars
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Great price poor quality
James
December 11, 2017
This part is priced very nice however it didn't come with a washer. Short story 2 broke because of the washer not being included. Dealership said the quality was not up to Nissan spec.Got one from dealership and it went on with no problems what so ever.
Mohammad
May 24, 2018
Received the item on time. It is good quality as well. Only problem is that the washer was not included even though the picture on the website shows up he washer attached to the sensor. I used the one from old sensor.
Fits right
Raymond
August 4, 2018
Quick delivery, fits like original, and good price.
Satisfied customer
S
November 10, 2018
Part fit as expected. This is exactly the part I needed to do the job. Shipping was free fast. I'm overall satisfied with my purchase and shopping from this website.
Part defective quick response and replacement
R
June 9, 2019
I had a problem with this part and they took care of it right away. I didn't have to send anything back they just sent me another part.
I will be buying from these guys again. Their videos really help and they are very knowledgeable.
Customer Q&A
What temperature dose this work at?May 28, 2016
Matthew R
10
same as the OEM for the model applications listed
June 1, 2016
Brian F
Where is the cooler temp sen.on a 2010 Maxima v6?December 4, 2021
John D
Customer service
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Infiniti is a registered trademark of Nissan Motor Co., Ltd. 1A Auto is not affiliated with or sponsored by Infiniti or Nissan Motor Co., Ltd.See all trademarks.
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