How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask JOHN aka Eauto Your Own Question
JOHN aka Eauto
JOHN aka Eauto, The Car Guy
Category: Nissan
Satisfied Customers: 15188
Experience:  ase tech over 15 years in the field uaw union member
6149662
Type Your Nissan Question Here...
JOHN aka Eauto is online now
A new question is answered every 9 seconds

Is it difficult to replace the expansion valve on a Nissan Altima?

REMOVAL 

  1. Evacuate and recover the A/C system refrigerant. Refer to "HFC-134a (R-134a) Service Procedure" .
  2. Disconnect the air cleaner to electronic throttle control actuator tube. Refer to "AIR CLEANER AND AIR DUCT" (QR25DE), "AIR CLEANER AND AIR DUCT" (VQ35DE).

NOTE: The tube is located between the air cleaner assembly and the intake manifold and is removed to access the expansion valve.

  1. Disconnect the A/C pipe from the expansion valve.

CAUTION: Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air



  1. Remove the expansion valve.

INSTALLATION 
Installation is in the reverse order of removal.

Expansion valve mounting bolts : 2.9 - 5.0 Nm (0.29 - 0.51 kg-m, 26 - 44 in-lb) 

CAUTION:

  • Replace the O-rings with new ones, then apply compressor oil to them when installing them.graphic

 



Read full interaction below »

Question

Is it difficult to replace the expansion valve on a 2005 Nissan Altima 2.5L?

Submitted: 5 years ago.
Category: Nissan
Expert:  JOHN aka Eauto replied 5 years ago.

REMOVAL

  1. Evacuate and recover the A/C system refrigerant. Refer to "HFC-134a (R-134a) Service Procedure" .
  2. Disconnect the air cleaner to electronic throttle control actuator tube. Refer to "AIR CLEANER AND AIR DUCT" (QR25DE), "AIR CLEANER AND AIR DUCT" (VQ35DE).

NOTE: The tube is located between the air cleaner assembly and the intake manifold and is removed to access the expansion valve.

  1. Disconnect the A/C pipe from the expansion valve.

CAUTION: Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air

  1. Remove the expansion valve.

INSTALLATION
Installation is in the reverse order of removal.

Expansion valve mounting bolts : 2.9 - 5.0 Nm (0.29 - 0.51 kg-m, 26 - 44 in-lb)

CAUTION:

  • Replace the O-rings with new ones, then apply compressor oil to them when installing them.graphic

Customer: replied 5 years ago.

Does it slide out of the firewall that easily?

Expert:  JOHN aka Eauto replied 5 years ago.

Yes, it takes under one hour.

JOHN aka Eauto and 3 other Nissan Specialists are ready to help you
Customer: replied 5 years ago.
YOU DONT HAVE TO PULL ANY OF THE DASH AND ACCESS IT FROM BEHIND THE FIREWALL?
Expert:  JOHN aka Eauto replied 5 years ago.

no...its step by step as listed

takes under 1 hour