How to replace the A/C Orifice Tube in the air conditioning system on Pontiac Grand Prix?

To replace the A/C Orifice Tube in the AC system, discharge the system and recover the refrigerant. Disconnect the negative battery cable and remove the air cleaner. Disconnect the high-pressure line near the transaxle to access the A/C Orifice Tube inside the evaporator pipe. Use pliers to remove it, checking its condition. When reinstalling, insert the shorter end towards the evaporator with a new O-ring. Reconnect the refrigerant line and have the system professionally evacuated, recharged, and leak-tested.

Genuine Pontiac Grand Prix A/C Orifice Tube

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4 A/C Orifice Tubes found

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Pontiac Grand Prix Orifice,A/C Evaporator Tube
Part Number: 3033879
$10.10 MSRP: $17.69
You Save: $7.59 (43%)
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Product Specifications
- Other Name: ORIFICE, A/C Evaporator
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1998 Pontiac Grand Prix | 2 DOOR, 4 DOOR, GT 2 DOOR, GT 4 DOOR, LE 2 DOOR, LE 4 DOOR, SE 2 DOOR, SE 4 DOOR, STE 4 DOOR | 4 Cyl 2.3L, 6 Cyl 2.8L, 6 Cyl 3.1L, 6 Cyl 3.4L, 6 Cyl 3.8L
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Pontiac Grand Prix Orifice Assembly, A/C Evaporator Tube
Part Number: 10411717
$12.94 MSRP: $33.22
You Save: $20.28 (62%)
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Product Specifications
- Other Name: ORIFICE, A/C Expansion Refrigerant; Orifice
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1999-2003 Pontiac Grand Prix | GT 2 DOOR, GT 4 DOOR, GTP 2 DOOR, GTP 4 DOOR, SE 4 DOOR | 6 Cyl 3.1L, 6 Cyl 3.8L
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Pontiac Grand Prix Receiver & Dehydrator Assembly, A/C
Part Number: 10344418
Product Specifications
- Other Name: RECEIVER & DEHYDRATOR, A/C Refrigerant; Accumulator, Drier
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005 Pontiac Grand Prix | GT 4 DOOR, GT2 4 DOOR, GTP 4 DOOR, GXP 4 DOOR | 6 Cyl 3.8L
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Pontiac Grand Prix Receiver & Dehydrator Assembly, A/C
Part Number: 10333862
Product Specifications
- Other Name: RECEIVER & DEHYDRATO, A/C Refrigerant; Accumulator, Dehydrator, Drier
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004 Pontiac Grand Prix | GT 4 DOOR, GTP 4 DOOR | 6 Cyl 3.8L

Pontiac Grand Prix A/C Orifice Tube

The Pontiac Grand Prix A/C Orifice Tube controls the flow of liquid refrigerant to the cabin while keeping high and low system pressures separated. The design of this A/C Orifice Tube is fixed. The refrigerant bottleneck is fixed. Consequently, at entry to the evaporator, it creates sufficient turbulent mixing. The refrigerant atomizes. This promotes the compressor to cycle or modulate displacement for steady pressure. The A/C Orifice Tube is different from an adjustable expansion valve that uses temperature responsive internals to vary flow. The A/C Orifice Tube uses a calibrated brass and mesh body with no moving parts. As a result, the performance depends on a small passage staying clear. Over the years, Pontiac placed the tube in the liquid line junction near the condenser or radiator, but the basic style stayed the same, distinguished only by screen pattern changes that were supposed to snag debris before it got near the evaporator. A dirty A/C Orifice Tube restricts flow, which may result in uneven cooling at idle, erratic gauge readings, and in severe cases, an iced over evaporator. Regular inspections and timely replacements restore normal pressure balance and help the Pontiac Grand Prix system avoid compressor strain. As a result, every intact A/C Orifice Tube protects the longevity and efficiency of a Grand Prix climate control loop.

Each OEM Pontiac Grand Prix A/C Orifice Tube we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

Pontiac Grand Prix A/C Orifice Tube Parts Questions & Experts Answers

Orifice,A/C Evaporator Tube
3033879
Q: How to replace the A/C Orifice Tube in the air conditioning system on Pontiac Grand Prix?
A:
To replace the A/C Orifice Tube in the AC system, discharge the system and recover the refrigerant. Disconnect the negative battery cable and remove the air cleaner. Disconnect the high-pressure line near the transaxle to access the A/C Orifice Tube inside the evaporator pipe. Use pliers to remove it, checking its condition. When reinstalling, insert the shorter end towards the evaporator with a new O-ring. Reconnect the refrigerant line and have the system professionally evacuated, recharged, and leak-tested.