Here's a general overview of the process. This is not a complete, step-by-step guide and should not be used as a substitute for a factory service manual. You will need a factory service manual specific to your 1995 Pontiac Transport SE for detailed instructions, torque specifications, and diagrams.
Tools you'll likely need (this is not exhaustive):
* Jack and jack stands: Essential for safely working under the vehicle.
* Wheel chocks: For safety.
* Socket set (metric): Various sizes.
* Wrench set (metric): Various sizes.
* Ratchet and extensions: To reach tight spots.
* Torque wrench: Crucial for proper tightening.
* Drain pan: To catch coolant and power steering fluid.
* New water pump and power steering pump: Make sure to get the correct parts for your vehicle's engine.
* Coolant: The correct type for your vehicle.
* Power steering fluid: The correct type for your vehicle.
* New belts: It's recommended to replace the belts while you have the pumps off.
* Pliers: Various types.
* Screwdrivers: Phillips and flathead.
* Possibly a puller: For stubborn pulleys or pumps.
General Steps (Water Pump):
1. Drain the coolant: Consult your service manual for the location of the drain plug.
2. Disconnect the battery: This is a safety precaution.
3. Remove the serpentine belt: This typically involves loosening the tensioner pulley.
4. Remove the fan and shroud (if necessary): This often needs to be done to access the water pump.
5. Disconnect hoses: Disconnect the hoses connected to the water pump. Be prepared for coolant spillage.
6. Remove the water pump: This may involve removing bolts and potentially using a puller if the pump is stuck.
7. Install the new water pump: Ensure the gasket is properly seated.
8. Reconnect hoses: Securely attach all hoses.
9. Reinstall the fan and shroud (if applicable).
10. Reinstall the serpentine belt.
11. Refill the cooling system: Use the correct type of coolant and bleed the system according to your service manual.
General Steps (Power Steering Pump):
1. Drain the power steering fluid: Locate the drain plug in the reservoir.
2. Remove the serpentine belt (if not already done): This is often necessary to access the power steering pump.
3. Disconnect hoses: Disconnect the high-pressure and low-pressure lines from the power steering pump. Be prepared for fluid spillage. Plug the lines to prevent fluid loss.
4. Remove the power steering pump: This may involve removing bolts and potentially using a puller.
5. Install the new power steering pump: Ensure it's properly aligned.
6. Reconnect hoses: Securely attach all hoses.
7. Reinstall the serpentine belt.
8. Refill the power steering fluid reservoir: Use the correct type of power steering fluid.
Important Considerations:
* Consult your service manual: This is absolutely crucial for precise instructions, torque specifications, and diagrams specific to your vehicle. Attempting this without it is strongly discouraged.
* Safety first: Always use jack stands, chocks, and appropriate safety gear.
* Fluid disposal: Dispose of used coolant and power steering fluid properly according to local regulations.
Again, this is a simplified overview. The actual process will be significantly more involved and requires a good understanding of automotive repair. If you lack the necessary experience, take your vehicle to a professional mechanic. Improperly installing these components can lead to serious engine damage or personal injury.
