For Pntiac Montana, Silhouette, Venture 2000-2005 check this removal & installation procedure...
Fig. Release tension from the hose clamp at the water pump housing using the special tool J38185 (click image for zoom).
Fig. Remove the nut which secures the A/C discharge hose to the condenser block
Fig. Remove the radiator and condenser assembly
WARNING
Only a MVAC-trained, EPA-certified, automotive technician should service the A/C system or its components.
To install:
NOTE
Use the special tool J38185 to gently release tension on the hose
clamp until the hose clamp lock feature engages allowing removal of the
hose.
NOTE
Cap or tape off the open A/C hose immediately to prevent system contamination.
NOTE
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.
NOTE
Release the hose clamp retention lock by using a small flat bladed screwdriver.
To install:
Hope this helps.
How to replace a radiator in a 2002 Pontiac van
The vehicle's radiator is the component that removes heat from the engine through thermal heat exchange. It is usually located in the front of the vehicle under the hood. The engine creates heat from the internal combustion that continuously occurs inside the engine; this heat is transferred to the engine coolant, then circulated through the thermostat then to the radiator. Inside the radiator there are many small tubes with cooling fins attached that allows the coolant to be cooled and then returned to the engine in a continuous cycle. Radiators are mostly made of 2 plastic tanks and an aluminum core.
Step 1: Identify Radiator and Cooling System Components (under hood)
Radiator Identification
The thermostat housing is where the thermostat resides; it is connected to the radiator upper tank. The system is filled and checked at the radiator cap. The radiator is held in place by the radiator holder brackets and is usually near the top radiator tank. Some radiator configurations may vary in appearance but the concept is the same.
Step 2: Disconnect Negative Battery Terminal
Remove Negative Battery Terminal
Make sure the ignition key is in the off position, loosen the terminal pinch bolt and disconnect the battery terminal (gloves suggested). Anytime you perform repair work like this it is a good idea to disconnect the battery to avoid electrical short circuits. Always disconnect the negative battery cable to avoid a short to ground and NEVER let the wrench contact to positive side of the battery. Make sure the battery is clean at all times. If corrosion exists rinse battery with water (hose) and sprinkle with baking soda to naturalize the remaining acid.
Step 3: Drain Cooling System
(Bottom View) Locate the radiator drain valve; turn it counter clockwise to loosen. On some cars there is a protective plastic splash guard that may need to be removed to access the radiator drain valve.
Step 4: Remove Lower Hose Connectihow to replace a radiator - tdisline_709.jpgdiator
Drain Radiator and Remove Lower Hose Connections
(Bottom View) After the coolant has drained completely, locate lower hose connections to remove clamps and hoses. If your vehicle has lower radiator mounts or cooling fan mounts, remove those bolts also. NOTE: (The cooling fan bolts are optional. Sometimes it is easier to disconnect the wires to the fans and remove the cooling fans with the radiator)
Remove Upper Radiator Hose Connections
Locate upper radiator hose to remove hose clamps and hose connection. Locate and remove upper cooling fan how to replace a radiator - tdisline_711.jpgs required.
Step 6: Remove Upper Radiator Mount
Locate and Remove Upper Radiator Mount Brakets
Locate upper radiator mounting brackets and remove the mounting bolts. If you have elected to remove the cooling fans with the radiator, locate the electrical connector and disconnect it as needed. If you are leaving the cooling fans behind when removing the radiator, remove the upper cooling fan mounting bolts. (Note in this photo an air impact gun is beinhow to replace a radiator - tdisline_712.jpgular wrench will work just fine).
Step 7: Remove and lift Radiator from Car
Lift Radiator From Car
After all previous steps have been completed; inspect the general area of the radiator making sure all other obstructions have how to replace a radiator - tdisline_713.jpgxt, lift radiator from vehicle removing the cooling fans if needed.
Step 8: Remove and Inspect Radiator
Inspect Old Radiator Once Removed
After removing the radiator from the vehicle, inspect thehow to replace a radiator - tdisline_714.jpgng hole location and other key mounting brackets. Now you are ready to install the new radiator.
Step 9: Replacing the New Radiator
Inspect New Radiator and Match it to the Original Unit
Remove the radiator from the shipping carton and inspect it thoroughly for damage. Make sure all mounting holes are in the correct location and the overall size is correct.
Step 10: Installing Cooling Fans
Install Cooling Fans (if required)
Remove the cooling fans from the old radiator and install onto the new radiator. Make sure the cooling fan motor turns freely after the cooling fans have been installed. Clean electrical connector and make sure it is free from debris.
Step 11: Installing New Radiator
Install New Radiator Assembly
After the radiator is ready for installation, inspect the vehicle cavity that the radiator resides in to make sure all dirt and leaves have been removed. Reinstall radiator and reconnect all hoses, clamps and mounting bolts. After reinstallation is complete, refill the radiator with engine coolant or water. With the radiator cap off allow the engine to warm up. Top off the coolant level until at the full level. Reinstall the radiator cap and recheck the system for leaks. (Note: make sure the coolant reservoir is about half full with engine coolant, and recheck the coolant level when cold).
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The information provided was not specific to a 2002 Pont. Montana van but was a general overview. I need model specific information!
good modle specific info
Were can I fine a video pontiac montana 2003 radiator replacement?
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