How do you change water pump on a 1993 Saab 900s?

Answer 1

There's an easy way and a hard way. The easy way requires removing more parts.

The hard way (after unhooking the battery):

1. Loosen the four bolts that hold on the water pump pulley. Loosen the air conditioning compressor and remove the belt.

2. Loosen the alternator so you can remove the two alternator/water pump belts.

3. Drain the coolant and save it for recycling. (It's a good idea to change coolant regularly, so as long as you're draining it ANYWAY, why not change it now?)

4. Remove the water pump pulley.

5. Remove the water pump.

6. Install the new water pump and gasket. Torque the bolts to 25 lb-ft.

7. Reinstall the water pump pulley.

8. Install two new belts and tension them. Reinstall, or install a new one, the air conditioner belt and tension it.

9. Open the bleed nipple on the thermostat housing--so long as you're in here, changing the thermostat would be a good idea but you don't have to--and add coolant to the coolant tank (it's on the left side of the car at the rear of the engine compartment) until a steady stream of coolant comes out the nipple, then tighten it.

The reason this is the hard way is the air conditioning compressor is in the way, and it is a grade-a pain to work around it. If you take the AC compressor off the bracket and set it on the cabin air intake (the AC hoses run up to it) then remove the AC compressor bracket, this job is a LOT easier.

Answer 2

Fuel Pump Access & locationIf you open the trunk and lift up the back deck lid to expose the spare tire there will be two screws toward the front. Simply remove those two screws and lift out the rear panel above the spare and then remove the front panel by sliding it toward the rear. Underneath the front cover is a round silver cover that hides the fuel pump!