GM 89019183
High Pressure Cut-Off Switch

Start the a/c high pressure switch replacement by eliminating the engine cover along with recovering refrigerant from your system. The surrounding region of the a/c high pressure switch requires cleaning prior to snap ring disassembly. You must disconnect the electrical connector which is attached to the a/c high pressure switch which sits at the rear head of the compressor. The worker should utilize the j 5403 (Snap Ring Pliers) to extract the a/c high pressure switch snap ring before proceeding to extract the a/c high pressure switch from the compressor. The j 9553-01 (O-Ring Remover) is used to extract the old o-ring seal from the switch cavity for an inspection-method to clean the cavity and o-ring groove from any dirt or foreign material. The new o-ring must receive 525 viscosity refrigerant oil lubrication before installation into the switch cavity groove. Apply the same oil to the control switch housing before putting the switch into the cavity until it reaches the bottom. The a/c high pressure switch snap ring must be installed with j 5403 (Snap Ring Pliers) so it faces the switch housing with its high point located inside the curve. Verify the snap ring has correctly positioned itself inside its housing. The repair process ends with evacuation and recharging the system. Next, perform a leak test on the fittings after using the j 39400-a (Halogen Leak Detector) to check repaired components before reinstalling the engine cover.

Before changing the a/c low pressure switch, pull the electrical plug off the a/c low pressure switch and then slide the switch off of the accumulator . Coat the new o-rings seal truthfully with the mineral base 525 viscosity refrigerant oil and install it on the switch. Next, install a/c low pressure switch to the accumulator, and tighten it to 6 n.m (53 lb in), making sure to use the fastener notice in service precautions. Finally reconnect the electrical connector a/c to the low pressure switch and carry out a leak test on the fittings of the component using j 39400-a.

The replacement process of the a/c high pressure switch begins by removing all refrigerant from the a/c system. First disconnect the a/c high pressure switch electrical connector after removing the air cleaner outlet duct. You must begin by removing the a/c high pressure switch connector retaining ring then disconnect the a/c high pressure switch from its position on the A/C Compressor. Apply the a/c high pressure switch to the A/C Compressor unit then fasten it with the connector retaining ring. The installation process requires restoring the air cleaner outlet duct after reattaching the electrical connector for the a/c high pressure switch. The completion of this job requires evacuation and recharging of the a/c system while performing leak tests on components using the halogen leak detector (J 39400-A).

The first step for a/c high pressure switch replacement demands refrigerant removing from the a/c system. The next step requires removing the air cleaner outlet duct before detaching the electrical connector from the a/c high pressure switch. Start the task by removing the a/c high pressure switch connector retaining ring followed by the removal of the a/c high pressure switch from the A/C Compressor. To install the a/c high pressure switch insert it properly onto the A/C Compressor before tightening it with the connector retaining ring. Secure the electrical connector of the high pressure switch before reinstalling the air cleaner outlet duct. The a/c system evacuation and recharging process should be completed while using the halogen leak detector (J 39400-A) to conduct fittings leak tests.

The first step to replace the a/c high pressure switch demands cleaning the system of refrigerant and unmounting the engine cover. You must first clean the surroundings of the a/c high pressure switch before you extract its snap ring. A technician must disconnect the a/c high pressure switch electrical connector which exists at the rear compressor head area. The a/c high pressure switch snap ring can be taken out with the j 5403 (Snap Ring Pliers) and the a/c high pressure switch can be extracted from the compressor after snap ring removal. The j 9553-01 (O-Ring Remover) can be used to remove the a/c high pressure switch cavity's old o-ring seal and you need to inspect both the cavity and o-ring groove for foreign material while cleaning those areas as needed. Place the new o-ring in the switch cavity groove after lubricating it with 525 viscosity refrigerant oil. The procedure requires you to apply the same oil for lubrication on the control switch housing before setting the switch down into the cavity until it reaches its full depth. Install the a/c high pressure switch snap ring through the j 5403 (Snap Ring Pliers) tool by placing its highest point next to the switch housing and ensuring full insertion into the retaining groove. The system needs evacuation and recharging after which components need a leak test using the j 39400-a detector before the engine cover installation.

The first step to replace the a/c high pressure cut-out switch requires an evacuation of refrigerant from the a/c system. You must start by dismantling the air cleaner outlet duct then disconnecting the a/c high pressure switch connector. The a/c high pressure switch extraction requires removing its connector retaining ring followed by removing the a/c high pressure switch from the A/C Compressor. Install the new a/c high pressure switch onto the A/C Compressor followed by using the connector retaining ring for securement while you connect the a/c high pressure switch connector. Evacuate the a/c refrigerant system and then reinstall the air cleaner outlet duct before completing the a/c refrigerant recharging process.

The a/c high pressure switch replacement requires evacuating refrigerant from the system followed by air cleaner outlet duct detachment. Unplug the a/c high pressure switch connector before removing its ring while extracting the a/c high pressure switch from the A/C Compressor body. Insert the new a/c high pressure switch onto the A/C Compressor where it can be anchored with the connector retaining ring then reestablish the electrical connection. Install the air cleaner outlet duct after performing the necessary steps followed by air conditioning system evacuation and recharging. You should complete a leak test operation on all fittings and components with the halogen leak detector (J 39400-A).

The a/c high pressure switch replacement begins with engine cover removal before conducting a/c system refrigerant extraction using the j 43600 acr 2000 refrigerant station (J 43600 ACR 2000). Before removing the snap ring the control switch area needs to be cleaned then the switch electrical connector must be detached from its rear compressor head location. The switch snap ring can be removed by using snap ring pliers [j 5403] to complete the switch removal from the compressor. Use the j 9553-01 o-ring remover (J 9553-01) on the switch cavity to extract the old o-ring before inspecting the switch cavity and o-ring groove for dirt or foreign material to perform cleaning when required. The installation process requires clean 525 viscosity refrigerant oil for lubricating a new o-ring before placing it into the switch cavity groove. Apply the same refrigerant oil on the control switch housing before pushing it all the way into the cavity. After installing the switch snap ring through the j 5403 tool ensure the higher section of the curved edge faces the switch housing and fits completely into the retaining groove. Transformation of the a/c system concludes with an evacuation process followed by system recharging using the j 39400-a halogen leak detector (J 39400-A) until all specified fittings exhibit no leaks. The engine cover is then replaced.

The process of changing the A/C high pressure cut-out switch requires removal of the engine cover as a first step. Perform the refrigerant recovery procedure with the Refrigerant Recovery and Recharging System (J 39500-B). Wipe down the control switch area first and proceed to remove its snap ring before eliminating the electrical connector from the switch positioned at the back of the compressor head. The switch can be removed from the compressor with the help of snap ring pliers (J 5403) after taking out the switch snap ring. The O-ring remover (J 9553-01) must be used to replace the worn O-ring seal inside the switch cavity while the cavity and O-ring groove receive a cleaning for any presence of foreign materials. Reinstall the existing control switch by using the new O-ring and retaining ring that accompanies a new switch kit. The switch cavity should receive a new O-ring which requires 525 viscosity refrigerant oil lubrication before installing the O-ring into its groove. Apply 525 cleanliness oil to the control switch housing before inserting the switch into the cavity and letting it reach the bottom position. Employ snap ring pliers (J 5403) to set the switch snap ring while positioning the highest point of the curve opposite the switch housing and ensuring complete groove insertion. Rephrase the next steps using Refrigerant Recovery and Recharging System (J 39500-B) and check for leaks before putting back the engine cover.

The replacement process of the a/c high pressure switch begins by removing all refrigerant from the a/c system. First disconnect the a/c high pressure switch electrical connector after removing the air cleaner outlet duct. You must begin by removing the a/c high pressure switch connector retaining ring then disconnect the a/c high pressure switch from its position on the A/C Compressor. Apply the a/c high pressure switch to the A/C Compressor unit then fasten it with the connector retaining ring. The installation process requires restoring the air cleaner outlet duct after reattaching the electrical connector for the a/c high pressure switch. The completion of this job requires evacuation and recharging of the a/c system while performing leak tests on components using the halogen leak detector (J 39400-A).

Use the J 5403 to install the switch snap ring, ensuring it is properly seated in the retaining groove.

Disconnect the A/C low pressure switch electrical connector and remove the A/C low pressure switch from the accumulator.

Disconnect the electrical connector from the A/C low pressure switch.

Perform a leak test on the fittings and components using the Halogen Leak Detector (J 39400-A).

Reconnect the electrical connector to the A/C low pressure switch and reinstall the coolant reservoir.

Disconnect the electrical connector from the A/C low pressure switch.

Lightly coat the new O-ring seal with mineral base 525 viscosity refrigerant oil, ensuring that no oil enters the refrigerant system.

Snap Ring Pliers (J 5403), O-Ring Remover (J 9553-01), and Halogen Leak Detector (J 39400-A).