OEM Chevrolet S10 A/C Accumulator

Chevrolet S10 A/C Accumulator Parts and Q&A

• Dehydrator
  89038598
  Q: How to install the A/C Accumulator to the A/C evaporator tube on Chevrolet S10?

  A:

  The first step to install the A/C Accumulator (ACDelco P/N 15-1697) at the a/c Evaporator tube near the condenser and Evaporator involves removing both the pcm and engine Coolant Reservoir. First loosen the Evaporator accumulator nut while moving the accumulator for better access to the tube leading to the Evaporator. Measure 100 mm (4 in) from the bend after the high side access port and place a mark before moving the measurement probe 50.8 mm (2 in) to tag another point on the Evaporator tube. You need to slice the marked section of the Evaporator tube with a tubing cutter before removing the burrs. The A/C Accumulator requires nut and ferrule removal along with o-ring removal but o-rings will not be installed yet. The A/C Accumulator should be installed with its flow arrow aimed at the Evaporator after mounting the nuts and ferrules over the Evaporator tube halves followed by ferrule installation with small ends facing toward the nuts. Secure A/C Accumulator nuts to 15 n.m (11 lb ft), afterward remove nuts to prepare o-ring seals with 525 viscosity refrigerant oil prior to installing o-rings on Evaporator tube. The A/C Accumulator nuts require tightening to 15 n.m (11 lb ft). The installation process for the accumulator includes mounting it to the Evaporator while tightening its Evaporator nut to 15 n.m (11 lb ft). Install the accumulator bracket to the high side access port position. After evacuation and recharge of the a/c system you must perform a leak test using the halogen leak detector (J 39400-A). Close the procedure by reinstalling the engine Coolant Reservoir along with the pcm.
• Drier
  89038599
  Q: How to replace the A/C Accumulator in the HVAC system on Chevrolet S10?

  A:

  The process of accumulator replacement in hvac systems begins with using the halogen leak detector (J 39400-A) for fitting leak tests after conducting a/c system refrigerant recovery. Start the process by taking off the a/c pressure switch for 4.3l vehicles then detach the accumulator to evaporator nut and the compressor hose assembly from the accumulator. After discarding the o-ring seals the technician removes the accumulator by unscrewing its clamp bolt. The new accumulator installation requires users to position the part in the clamp while tightening the clamp bolt at 10 n.m (88 lb in). To install the compressor hose assembly you must first put on the a/c low pressure switch along with new o-ring seals then attach the assembly to the accumulator by torquing the suction hose retaining nut to 48 n.m (35 lb in). Tighten the accumulator to evaporator retaining nut until it reaches 28 n.m (21 lb ft). The last step requires connecting the electrical connector to the 4.3l a/c pressure switch before evacuating and recharging the entire a/c system.