Correct fuel pressure on a 1999 pontiac grand prix

SOURCE: Where is the AC Low pressure valve on a 1999 Pontiac Grand Prix?

sometimes its behind the alternator real close to the firewall. Find the bigger of the two hoses and pipes the low side is always bigger. Also the cap is blue and the fitting for the charging can will only fit on the right valve.

Colin Stickland

• 22516 Answers
• Posted on Sep 05, 2009

SOURCE: location of the radiator drain plug for 2001 Pontiac grand prix

doesnt have one ,remove the bottom hose

Testimonial: "Thanks I would have never assumed that!"

ZJ Limited

• 17989 Answers
• Posted on Feb 08, 2010

SOURCE: how to change a fuel pressure regulator in a 1997

GM Century/Lumina/Grand Prix/Intrigue 1997-2000
Fuel Pressure Regulator - Removal & Installing
The fuel pressure regulator is a diaphragm-operated relief valve with fuel pump pressure on one side and regulator spring pressure and intake manifold vacuum on the other side. The regulator's function is to maintain a constant fuel pressure across the injectors at all times. The pressure regulator compensates for engine load by increasing fuel pressure as engine vacuum drops.

The fuel pressure regulator is serviced as a separate component. When servicing the pressure regulator, make sure that the O-ring back-up, large O-ring, filter screen and small O-ring are properly positioned on the pressure regulator.


Fig. Cutaway view of a typical fuel pressure regulator


REMOVAL & INSTALLATION
The need to work as cleanly as possible cannot be over-emphasized. Even the smallest amount of dirt, if allowed into the fuel pressure regulator and/or the fuel rail, will find its way to the fuel injectors. The nozzle openings of the injectors are very small. Keep hands and tools clean. Clean the areas to be disconnected with a suitable solvent. Carefully cover open fittings and connections to keep out foreign material. Dirt in the injectors almost guarantees a clogged fuel injector and engine performance problems.
3.1L and 3.4L (VIN E) Engines

1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure using the procedures found in this section.
3. Remove the upper intake manifold assembly. Please see .
4. Disconnect the vacuum line from the pressure regulator.
5. Remove the regulator retaining screw and remove the retainer bracket. Using a clean shop cloth to catch fuel spillage, carefully pull the regulator from the fuel rail. Twist the regulator slightly while removing to ease removal. Discard the O-ring.

1. Clean all parts well. DO NOT use shop compressed air to test or clean a fuel pressure regulator. Clean the fuel pressure regulator screen, if necessary. DO NOT immerse the fuel pressure regulator in a solvent bath or it will be damaged.
2. If the filter screen has been contaminated, it should be removed and the pressure regulator replaced.
3. Lubricate a new pressure regulator O-ring with clean engine oil and install on the regulator inlet.
4. Install the fuel return pipe to the regulator.
5. Install a new retainer and spacer bracket into the slot on the fuel rail and install the pressure regulator to the fuel rail. Tighten the fuel return line nut to 13 ft. lbs. (17 Nm).
6. Connect the vacuum line to the pressure regulator and install the retainer screw. Tighten to 76 inch lbs. (8.5 Nm).
7. Inspect and verify that the retainer and spacer bracket is engaged in the slots in the fuel rail. Grasp and pull on the regulator to ensure that it is properly seated.
8. Install the upper intake manifold. Please see .
9. Connect the negative battery cable.
10. Inspect for leaks using the following procedure:
    • Turn the ignition switch to the ON position for 2 seconds.
    • Turn the ignition switch to the OFF position for 10 seconds.
    • Turn the ignition switch to the ON position again.
    • Inspect all areas for fuel leaks.

detour342

• 200 Answers
• Posted on Jul 07, 2010

SOURCE: 1999 grand prix code P0108 and P0141

Until the problem is repaired the codes will come on

Duane Wong

• 6826 Answers
• Posted on Jul 15, 2010

SOURCE: How to Replace the Starter in a 1999 Pontiac Grand

starter is located on the engine block down below.

Removal & Installation To Remove:
Before servicing the vehicle, refer to the precautions in the beginning of this section.

1. Remove or disconnect the following:
   • Negative battery cable
   • Radiator lower air deflector
   • Torque converter cover
   • Electrical connections from the starter
   • Starter motor

1. Install or connect the following:
   • Starter motor and torque the bolts to 32 ft. lbs. (43 Nm)
   • Starter solenoid BAT terminal
   • Starter solenoid S terminal
   • Torque converter cover and torque the bolts to 89 inch lbs. (10 Nm)
   • Radiator lower air deflector and torque the bolts to 15 ft. lbs. (20 Nm)
   • Negative battery cable