Im trying to figure out what is all in the timing belt system on a 92 sunbird. Its like the 3rd one down???? im thinking its the water pump but im not exactly sure and i cant find any diagrams on it.

Needs to have at least 3o lbs of fuel pressure,may need to rent
a gauge from your local parts house.
Plus make sure all the ground wires are attached (bell housing
bolt is where the ECM ground is,I think)

1989–92 VEHICLES

1. Disconnect the negative battery cable.
2. Remove the serpentine belt and timing belt cover.
3. Loosen the water pump bolts and release tension with tool J–33039 or equivalent.
4. Raise and support the vehicle safely.
5. Remove the crankshaft pulley.
6. Carefully lower the vehicle, then remove the timing belt. Fig. 11: Exploded view of the timing belt assembly — 1989–92 OHC engines
   To install:
   
7. Turn the crankshaft and the camshaft gears clockwise to align the timing marks on the gears with the timing marks on the rear cover.
8. Install the timing belt, making sure the portion between the camshaft gear and crankcase gear is in tension.
9. Using tool J–33039 or equivalent, turn the water pump eccentric clockwise until the tensioner contacts the high torque stop. Tighten the water pump screws slightly.
10. Turn the engine by the crankshaft gear bolt 720°to fully seat the belt into the gear teeth.
11. Turn the water pump eccentric counterclockwise until the hole in the tensioner arm is aligned with the hole in the base.
12. Tighten the water pump screws to 18 ft. lbs. (24 Nm), while checking that the tensioner holes remain as adjusted in the prior step.
13. Install the crankshaft pulley, timing belt cover and the serpentine drive belt.

1993–94 VEHICLES

1. Disconnect the negative battery cable, then partially drain and recover the cooling system.
2. Remove the coolant recovery reservoir.
3. If equipped, remove the A/C belt.
4. Remove the serpentine belt.
5. Disconnect the evaporative emission pipe assembly.
6. Remove the crankshaft pulley assembly.
7. As outlined earlier, remove the timing belt front cover.
8. Align the marks on the crankshaft sprocket with the marks on the rear timing belt cover by rotating the crankshaft.
9. Loosen the water pump retaining bolts, and release the tension with tool J 33039-A or equivalent.
10. Carefully lower the vehicle, then remove the timing belt. Fig. 12: Timing belt installation and tightening specifications — 1993–94 2.0L OHC engines
    To install:
    
11. Turn the crankshaft and camshaft gears clockwise to align the timing marks on the gears with the timing marks on the rear cover.
12. Install the timing belt, making sure that the portion between the camshaft gear and crankshaft gear is in tension.
13. Using tool J 33039-A, or equivalent adjustment tool, turn the coolant pump eccentric clockwise until the tensioner arm contacts the high torque stop. Tighten the water pump screws slightly.
14. Turn the engine by the crankshaft gear bolt 720°clockwise to fully seat the belt into the gear teeth.
15. Turn the coolant pump eccentric counter clockwise until the hole in the tensioner arm is aligned with the hole in the base. This must be done with the engine at room temperature, approximately 68°F (20°C).
16. Tighten the water pump screws while checking that the tensioner holes remain as adjusted as in step 15.
17. As outlined earlier, install the timing belt cover.
18. Install the crankshaft pulley.
19. Connect the evaporative emission pipe assembly.
20. Install the serpentine drive belt and the A/C belt (if equipped).
21. Install the coolant recovery reservoir.
22. Properly fill the cooling system, then connect the negative battery cable.

Click on the following free direct LinkS. These are for your 1992 Pontiac Sunbird. They have both: the 2.0L 4-Cylinder and 3.1L V6 Engine Diagrams with the various engine options (AC/No AC etc.)
This First Link has the Belt Diagram/Front Engine Diagrams you will need to remove in order to gain access to the Timing Belt Cover, which also has to be removed so you can remove the Timing Belt.
http://www.2carpros.com/car_repair_information/year/1992/make/pontiac/model/sunbird/1992_pontiac_sunbird_drive_belt_routing_diagram.htm
This Second Link are the Timing Belt Diagrams, complete with Instructional Diagrams.
http://www.2carpros.com/car_repair_information/year/1992/make/pontiac/model/sunbird/1992_pontiac_sunbird_timing_belt_diagram_marks.htm

As far as a Step-by-Step procedure: It would literally take dozens of Pages using this type of forum. I strongly suggest for your sake: to purchase a Haynes or Chilton Manual, available at most auto parts stores for around $20-$25. These have every step-by-step procedure you will need; including the Torques Specifications for each and every Bolt and/or Nut you are removing or loosening.

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

I had the same problem with my 92 sunbird. after a long time of fooling around, we finally figured out it was the ignition module, it the part that is responsible for firing the spark plugs, mine was only running 2 of the four cylinders.

There are two pulleys running in this engine, and the waterpump runs on the second pully behind a case. so you have to take almost everything off to get at it. Then, the waterpump is actually the belt tensioner for that pulley system. it is excentric (sp?) so when you turn it in place, it tightens the belt. then you secure it back with three bolts. The belt system in question connects the drive shaft with the cam shaft, So you do have to be Very Careful with the belt/ pulley alignment. i marked the pulleys very very carefully so i could get everything lined up again.

Water pump is on the left side of the timing belt in the cover and spins on an O-ring to adjust the belt. Their is a coolant pipe to the the thermostat housing behind the timing covers backing plate also. Be sure to replace the timing belt with the tensioner/ oil seals along with the water pump. Remove the timing covers back plate and you will find two bolt to the pipe as mentioned. It has a large o-ring behind it. Have fun with this one. From: Ronnie Wrench

I Have Pictures But they must be Emailed as JPEG file
FixYa Does not have Un-Encription software so that I can Send Pics through FixYa.com . I can be reached @ aol.com with this screename. Be More than glad to send them to send em


SPECIAL TOOL REQUIRED (or equivalent)

• J-33039-A, Cam drive belt tension adjustment wrench.

NOTE: O.E. manuals do NOT provide images of the timing marks, however, the alignment marks are located on the camshaft and crankshaft gears and the rear timing belt cover.

REMOVE OR DISCONNECT

1. Battery ground cable, then partially drain cooling system.
2. Coolant recovery reservoir.
3. Serpentine, A/C and/or P/S drive belts(if equipped).
4. Evaporative emission pipe assembly.
5. Crankshaft pulley.
6. Timing belt cover attaching bolts and the cover.
7. Align marks on timing gears with the marks on the rear timing cover.
8. Loosen water pump bolts, then using J-33039-A on the water pump eccentric, release the belt tension.
9. Timing belt.

INSTALL OR CONNECT

1. Turn crankshaft and camshaft gears clockwise to align timing marks on timing belt rear cover.
2. Timing belt, making sure that the portion between the crankshaft and camshaft gears is in tension.
3. Using J-33039-A rotate water pump eccentric clockwise until tensioner contacts high torque stop, then tighten water pump bolts slightly.
4. Rotate the engine by the crankshaft gear bolt 720°clockwise to seat timing belt on sprockets.
5. With engine at room temperature, rotate water pump eccentric with J-33039-A counterclockwise until hole in tensioner arm is inline with hole in base.
6. Tighten water pump attaching bolts to 25 Nm (18 ft lbs) and ensure tensioner holes remain aligned.
7. Timing belt cover and tighten bolts and nuts to 9 Nm (80 in lbs) .
8. Crankshaft pulley, apply Loctite(R) 242 to bolt threads and tighten to 21 Nm (15 ft lbs) .
9. Evaporative emission pipe assembly.
10. Serpentine, A/C and/or P/S drive belts (if equipped).
11. Coolant recovery reservoir and fill cooling system.
12. Battery ground cable.

figure two to three times what the cost of the water pump itself costs and there ya go..
good-luck ray

Easiest way to check a timing belt without looking too hard: Does the engine spin over faster than normal with little or no compression? If so, belt has gone away. Dont guess when replacing it. Get a manual!!!

thers a oil psi senser that wont let the fuel pump run at low psi when the car worms the psi gos down ,the fuel rely only runs the pump for about five sec as a primer then the oil psi senser takes over thirs a plug righi behind the oil fliter for the senser ,un plug it and put ajumper wire across it as a test ,you may need a oil pump