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Scott K
Scott K, ASE Master Tech/Instructor
Category: Chevy
Satisfied Customers: 1569
Experience:  20 yrs Experience; GM factory Training ASE Master Certified with L1 advanced engine diagnostics
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how to change ac compressor 98 venture

Customer Question

No Comment Added
Submitted: 6 years ago.
Category: Chevy
Expert:  Scott K replied 6 years ago.

HiCustomer

Welcome to Just Answer,

Here are the instructions you will need. Any more questions just reply back

Scott

Air Conditioning Compressor Replacement

Removal Procedure

  1. Recover the refrigerant.
  2. Remove the engine mount strut bracket left side.
  3. Remove the electric cooling fan left side.
  4. Remove the drive belt.
    Object Number: 392590  Size: SH
  5. Disconnect the electrical connector at the compressor.
    Object Number: 299178  Size: SH
  6. Remove the compressor hose assembly at the compressor.
    Object Number: 277918  Size: SH

  7. Remove one lower mounting bolt.
  8. Remove two upper mounting bolts.
  9. Remove the compressor.

Installation Procedure


    Object Number: 277918  Size: SH

  1. Install the compressor.

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  2. Install two upper mounting bolts.

    Tighten
    Tighten the bolts to 50 N·m (37 lb ft).

  3. Install one lower mounting bolt.

    Tighten
    Tighten the bolt to 50 N·m (37 lb ft).


    Object Number: 392626  Size: SH

  4. Use the new sealing washers(1) in order to install the compressor hose assembly to the compressor.

    Tighten
    Tighten the nut to 33 N·m (24 lb ft).


    Object Number: 392590  Size: SH

  5. Connect the electrical connector to the compressor.
  6. Install the electric cooling fan left side.
  7. Install the engine mount strut bracket left side.
  8. Remove the drive belt.
  9. Evacuate, charge and leak check the system.

Drive Belt routing

Object Number: 190590  Size: MH

Engine Mount Strut

Object Number: 105883  Size: SH

Engine cooling fan

Object Number: 125810  Size: SH

Scott K, ASE Master Tech/Instructor
Category: Chevy
Satisfied Customers: 1569
Experience: 20 yrs Experience; GM factory Training ASE Master Certified with L1 advanced engine diagnostics
Scott K and 2 other Chevy Specialists are ready to help you
Customer: replied 6 years ago.
Reply to Scott K's Post: How do I recover refrigerant?
Expert:  Scott K replied 6 years ago.

You will need a recovery machine, a very expensive piece of equipment.

You might be able to take it to a local shop and pay a small fee for them to remove it (they get to keep the dirty refrigerant their machine will recycle it) Then when you get the parts on they can also pull a vacuum on the system and recharge it.

Don't install the new compressor without pulling a vacuum afterwards air and moisture will be present in the system causing poor cooling and acids to develop that will attack the a/c system.

Scott

 

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Scott K
Scott K
Automotive Instructor
867 Satisfied Customers
20 yrs Experience; GM factory Training ASE Master Certified with L1 advanced engine diagnostics