Sierra 1500 | 2006-2013 | Denali, Hybrid, SL, SLE, SLT, WT, XFE | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV), 8 Cyl 6.0 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
Sierra 1500 Classic | 2007 | Denali, Hybrid, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
Sierra 1500 HD | 2006 | SLE, SLT | 8 Cyl 6.0 L GAS
Sierra 1500 HD Classic | 2007 | SLE, SLT | 8 Cyl 6.0 L GAS
Sierra 2500 HD | 2006-2014 | Denali, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
Sierra 2500 HD Classic | 2007 | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
Sierra 3500 | 2006 | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
Sierra 3500 Classic | 2007 | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
Sierra 3500 HD | 2007-2014 | Denali, SLE, SLT, WT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
Yukon | 2006-2014 | Denali, SL, SLE, SLT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
Q: How to replace the A/C Orifice Tube on a short wheelbase on GMC Envoy?
A: You need to begin A/C Orifice Tube replacement on short wheelbase vehicles by recovering coolant then taking out the accumulator. The first task involves disconnecting the evaporator tube nut from the evaporator while you pull away the evaporator tube. After discarding the o-ring seal you must remove the evaporator tube block fitting nut and open the evaporator tubes (4,6) at this fitting. The A/C Orifice Tube remover (J26549-E) helps professionals properly extract the A/C Orifice Tube out of the evaporator tube. The shorter screen end of the A/C Orifice Tube needs to enter the evaporator tube first during installation while using a tool called the A/C Orifice Tube remover (J26549-E). Use a new o-ring while reassembling evaporator tubes (4,6), torquing the evaporator tube nut to 28 n.m (21 lb ft). Lightly attach the evaporator tube to its fitting component using a nut that requires the proper torque amount. The process ends with Coolant Reservoir and accumulator reinstallation and refrigerant system recharging followed by checking fittings with the halogen leak detector (J39400-A).
Q: How to Properly Service and Replace an A/C Orifice Tube in the A/C System on GMC Savana 2500?
A: Start the replacement process of the expansion (orifice) tube by recovering all refrigerant from the a/c system. The Evaporator hose retaining nut on the Evaporator needs removal before using the (J 26549-E) to extract the expansion tube. The expansion tube may be loosened with the j 26549-e tool by applying gentle heat 7mm (0.25in) away from the inlet pipe dimples followed by rotating motions to free the tube. Begin installation by putting the shorter screen side into the Evaporator while applying 525 viscosity refrigerant oil to the o-ring seal. After installation with the (J 26549-E) the expansion tube gets fitted into position, afterwards install new sealing washers to the Evaporator tube. Speak caution when installing the Evaporator hose to the Evaporator to reduce the risk of vehicle damage. Fasten the Evaporator hose retaining nut to the component before tightening it to 16 nm (12 lb ft). Performing a leak test on the components' fittings using (J 39400-A) should be the last step after evacuating and recharging the a/c system.
Q: How to replace the A/C Orifice Tube on GMC Jimmy?
A: The procedure of replacing an A/C Orifice Tube begins with recovering all refrigerant from the system. The evaporator receiving tube needs removal from its mount while discarding its o-ring sealing component. The A/C Orifice Tube remover and installer (J 26549-E) should be used for A/C Orifice Tube removal. When cleaning impacted residue from a restricted or plugged tube users should eliminate as much material as possible while also removing any pressure switch near the tube to shield it from damage during heat application. Heat the dimpled areas of the inlet pipe by using a heat gun or equivalent tools at 7 mm (0.25 in) distance without subjecting them to excessive heat. During the heat application process use the A/C Orifice Tube remover and installer (J 26549-E) to unscrew and withdraw the A/C Orifice Tube by performing a turning motion combined with pushing and pulling actions while holding the tube. Use A/C Orifice Tube remover and installer (J 26549-E) to put the shorter screened end of the new A/C Orifice Tube into the evaporator initially. The new o-ring seal requires 525 viscosity refrigerant oil for coating prior to installation. Fasten the evaporator tube to the evaporator before securing it with torque of 28 n.m (21 lb ft). Complete the process by evacuating then recharging the system.