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How To Replace Coolant Temperature Sensor 2.5L Nissan Altima

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  1. step : Removing the Coolant Temperature Sensor (0:35)
    • 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. step : Installing the Coolant Temperature Sensor (1:42)
    • 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

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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 needed for replacement:

    General Tools

  • Funnel
  • Drain Pan

  • Hex Wrenches

  • 5mm Hex Wrench

  • Materials, Fluids, and Supplies

  • Anti-Freeze

  • Screwdrivers & Related

  • Phillips Head Screwdriver

  • Wrenches - Metric

  • 14mm Wrench

1996 - 2002  Mercury  Villager
2003 - 2007  Infiniti  FX35
2003 - 2008  Infiniti  FX45
2010 - 2010  Infiniti  FX50
1996 - 1996  Infiniti  G20
2003 - 2007  Infiniti  G35
1996 - 2001  Infiniti  I30
1999 - 2002  Infiniti  G20
2002 - 2004  Infiniti  I35
1996 - 1997  Infiniti  J30
2006 - 2008  Infiniti  M35
2003 - 2004  Infiniti  M45
2006 - 2010  Infiniti  M45
1993 - 2006  Infiniti  Q45
1997 - 2003  Infiniti  QX4
2004 - 2011  Infiniti  QX56
1995 - 1998  Nissan  240SX
1996 - 1996  Nissan  300ZX
2003 - 2009  Nissan  350Z
2009 - 2009  Nissan  370Z
2011 - 2011  Nissan  370Z
2009 - 2011  Nissan  Cube
2009 - 2012  Nissan  GT-R
2003 - 2007  Nissan  Murano
2009 - 2011  Nissan  Murano
2004 - 2011  Nissan  Titan
2008 - 2011  Nissan  Rogue
2005 - 2006  Nissan  X-Trail
1995 - 1998  Nissan  200SX
1995 - 2006  Nissan  Altima
1995 - 2008  Nissan  Maxima
2004 - 2004  Nissan  Pathfinder Armada
1996 - 2011  Nissan  Pathfinder
1996 - 2002  Nissan  Quest
2004 - 2009  Nissan  Quest
2011 - 2011  Nissan  Quest
2007 - 2011  Nissan  Versa
1998 - 2011  Nissan  Frontier
1995 - 2011  Nissan  Sentra
2000 - 2011  Nissan  Xterra
1996 - 1997  Nissan  Pickup

93-13 Infiniti; 96-02 Villager; 95-13 Nissan Multifit Coolant Temperature Sensor

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  • DIY Solutions HVA02895
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