1988 gm engine accessory mounting bracket placement

Vin K or Vin 1 ?
Removal Procedure
The accessory drive belt drives all engine mounted accessories. All driven accessories are rigidly mounted to the engine. Drive belt tension is maintained by a spring loaded belt tensioner. A belt squeak when the engine is started or stopped is normal and has no effect on belt durability. The drive belt tensioner can control belt tension over a broad range of belt lengths; however, there are limits to the tensioner's ability to compensate. Using the tensioner outside of its operating range can result in poor tension control and/or damage to the tensioner.
Important: Ensure that the wood block extends past the width of the oil pan in order to avoid damage.

1. Use a jack with a block of wood on the jack under the oil pan in order to support the engine.
2. Remove the engine mount to engine mount bracket nuts.
3. Remove the engine mount bracket front upper and lower nuts.

Remove the engine mount bracket front upper and lower studs and spacer.
Lower the engine as necessary and rotate the tensioner to remove the drive belt.
Remove the drive belt.
Don't need to remove power steering pump if done right !

5) Install the rear A/C mountingbracket. Tighten the rear A/C mounting bracket bolts to 35 Nm (26lb-ft).6) Install the A/C compressor. 7) Install the power steering pump. 8) Connect the negative battery cable.
If this helps, please say so! Thanks! :-)

Removal & Installation


NOTE There is a trend among manufacturers today to refer to the source of belt-driven electrical power as a -generator-; however, by virtue of the method in which the -generator- produces electrical current the device is actually an -alternator-. The two terms may be used interchangeably.

1. Before servicing the vehicle, refer to the Precautions Section.
2. Drain the cooling system.
3. Remove or disconnect the following:
   
   Negative battery cable Accessory drive belt Alternator upper mounting bolt Engine splash shield Radiator support access panel Rear alternator bracket from the engine Alternator mounting bolts Duct on the back of the alternator Electrical connectors Front alternator-to-A/C bracket Alternator
   

To install:

1. Install or connect the following:
   
   Alternator Front alternator-to-A/C bracket. Torque the bolt to 37 ft. lbs. (50 Nm). Electrical connectors. Torque the battery connection nut to 115 inch lbs. (13 Nm). Duct on the back of the alternator Alternator mounting bolts. Torque the bolts to 37 ft. lbs. (50 Nm). Upper front bolt. Torque the bolt to 35 ft. lbs. (47 Nm). Rear bracket to the engine. Torque the bolt to 37 ft. lbs. (50 Nm). Radiator support access panel Engine splash shield Accessory drive belt Negative battery cable
   
2. Refill the cooling system. 4 DeVille
   NOTE There is a trend among manufacturers today to refer to the source of belt-driven electrical power as a -generator-; however, by virtue of the method in which the -generator- produces electrical current the device is actually an -alternator-. The two terms may be used interchangeably.
   
3. Before servicing the vehicle, refer to the Precautions Section.
4. Drain the cooling system.
5. Remove or disconnect the following:
   
   Negative battery cable Accessory drive belt Radiator Electrical connectors Alternator mounting bolts Alternator
   

To install:

1. Install or connect the following:
   
   Alternator Alternator mounting bolts. Torque the bolts to 37 ft. lbs. (50 Nm). Electrical connectors. Torque the battery connection nut to 111 inch lbs. (12 Nm). Radiator Accessory drive belt Negative battery cable
   
2. Refill the cooling system.

Did you remove the catalytic converter, and motor mount? Lots of stuff has to come off to get this pan out. :o(

3.8L Engine

1. Drain the engine oil.
2. Remove or disconnect the following:
   
   Negative battery cable Throttle body air inlet duct Engine mount struts Accessory drive belt
   
3. Install an engine support fixture.
   
   Catalytic converter from the right exhaust manifold Right front wheel Right side splash shield Oil filter and discard A/C compressor bracket and reposition the compressor Power steering oil cooler pipe brackets from the frame Engine mount bracket bolts Lower engine mount nuts Torque converter cover Oil level sensor electrical connector Oil level sensor
   
4. Raise the vehicle and place a support under the frame.
   
   Right side frame bolts and loosen the left side bolts Engine mount and bracket Oil pan

built in.

GM Full-Size Trucks 1988-1998 Repair Information
Ignition Coil - REMOVAL & INSTALLATION
(sSee Figures 1, 2 and 3)



Fig. 1: Ignition coil mounting-4.3L engines

1. Tag and unplug the wiring connectors from the coil and the coil wire.
2. Unfasten the retainers securing the coil bracket and coil to the manifold.
3. Remove the coil and bracket and drill out the two rivets securing the coil to the bracket.
4. Remove the coil from the bracket.
   

To install:
The replacement coil kit may come with the two screws to attach the coil to the bracket. If not, you must supply your own screws.



Fig. 2: Ignition coil mounting-5.0 and 5.7L engines



Fig. 3: Ignition coil mounting-7.4L engines

1. Fasten the coil to the bracket using two screws.
2. Fasten the coil and bracket to the manifold. Tighten the retainers until they are snug.
3. Engage the coil wire and the wiring connectors to the coil.

Hope this help to solve it (remember comment and rated this).

3.0L (VIN 3) Engine


Power steering pump mounting detail (3.0L engine)

1. Disconnect and isolate the negative battery cable.
   
2. Remove the accessory drive belt. The belt does not have to be removed from the engine.
   
3. Raise and safely support the vehicle.
   
4. Disconnect the wiring harness connector to the oxygen sensor which is accessible through the oxygen sensor wiring harness grommet in the vehicle floor pan.
   
5. Remove the catalytic converter from the exhaust manifold and remove all exhaust system hangers and isolators from the exhaust system brackets. Move exhaust system out of the way as far rearward and to the left as possible to provide access to the power steering pump.
   
6. Place a drain pan under the power steering pump. Remove the power steering fluid return line hose on the front suspension cradle. Allow the fluid to drain from the pump and hose.
   
7. Remove the accessory drive belt splash shield.
   
8. Disconnect the power steering remote reservoir supply hose from the fitting on the power steering pump. Allow fluid to drain from the hose.
   
9. Remove power steering fluid pressure line from the power steering pump and drain any excess power steering fluid.
   
10. Remove the power steering fluid return hose from the power steering pump.
    
11. Remove the rear support bracket mounted behind the power steering pump to the engine block.
    
12. Remove the 2 mounting bolts that secure the pump to the alternator/power steering pump and belt tensioner mounting bracket.
    
13. Remove the power steering pump and pulley assembly out from the vehicle. Transfer all required parts from the pump to the new replacement pump before installation.
    

To install:

1. Position the front of the power steering pump up onto the mounting bracket. Torque the 2 power steering pump-to-mounting bracket bolts to 40 ft. lbs. (54 Nm).
   
2. Install the rear power steering pump-to-engine block support bracket. Torque the 2 support bracket mounting bolts to 40ft. lbs. (54 Nm). Install the nut to the mounting stud behind the pump and torque to 40 ft. lbs. (54 Nm).
   
3. Install the high pressure fluid line to the pump output fitting. Torque the high pressure line-to-power steering pump fitting to 275 inch lbs. (31 Nm). Be sure to inspect the pressure line O-ring for any damage before connecting the pressure line to the steering pump.
   
4. Install the low pressure power steering fluid hose to the power steering pump low pressure fitting. Be sure the hose clamps are properly reinstalled and hoses are clear of the accessory drive belts.
   
5. Install the accessory drive belt.
   
6. Install the hose on the power steering fluid return line on the front suspension cradle. Be sure the hose clamps and heat shield tubes are correctly reinstalled.
   
7. Reconnect the exhaust pipe to the exhaust manifold. Install the hangers and isolators onto the exhaust system brackets. torque the nuts and bolts to 250 inch lbs. (28 Nm).
   
8. Reconnect the wiring harness connectors to the oxygen sensor. Install the wiring harness grommet into the vehicle floor pan.
   
9. Install the accessory drive belt splash shield.
   
10. Remove the drain pan and lower the vehicle.
    
11. Refill the power steering pump reservoir with the correct amount of clean power steering fluid.
    
12. Reconnect the negative battery cable. Bleed the power steering system.
    
13. Run the engine and check the system for leaks and proper steering operation.
    

3.3L (VIN R) & 3.8L (VIN L) Engines


Rear support bracket mounting detail (3.3 & 3.8L engines)


Power steering pump mounting detail (3.3 & 3.8L engines)

1. Remove and isolate the negative battery cable.
   
2. Raise and safely support the vehicle. Place a drain pan under the power steering pump.
   
3. Disconnect the wiring harness connector to the oxygen sensor which is accessible through the oxygen sensor wiring harness grommet in the vehicle floor pan.
   
4. Remove the catalytic converter from the exhaust manifold and remove all exhaust system hangers and isolators from the exhaust system brackets. Move exhaust system out of the way as far rearward and to the left as possible to provide access to the power steering pump.
   
5. Remove the power steering fluid return line hose on the front suspension cradle. Allow the fluid to drain from the pump and hose.
   
6. Remove the accessory drive belt splash shield.
   
7. Remove accessory drive belt.
   
8. Disconnect the power steering remote reservoir supply hose from the fitting on the power steering pump. Allow fluid to drain from the hose.
   
9. Remove power steering fluid pressure line from the power steering pump and drain any excess power steering fluid.
   
10. Remove the power steering fluid return hose from the power steering pump.
    
11. Remove the rear support bracket mounted behind the power steering pump to the engine block.
    
12. Remove the 3 mounting bolts that secure the pump to the alternator/power steering pump and belt tensioner mounting bracket.
    
13. Remove the power steering pump and pulley assembly from the vehicle. Transfer all required parts from the pump to the new replacement pump before installation.
    

To install:

1. Position the front of the power steering pump up onto the mounting bracket. Torque the 3 power steering pump-to-mounting bracket bolts to 40 ft. lbs. (54 Nm).
   
2. Install the rear power steering pump-to-engine block support bracket. Torque the support bracket mounting bolts to 40 ft. lbs. (54 Nm). Install the nut to the mounting stud behind the pump and torque to 40 ft. lbs. (54 Nm).
   
3. Install the high pressure fluid line to the pump output fitting. Torque the high pressure line-to-power steering pump fitting to 275 inch lbs. (31 Nm). Be sure to inspect the pressure line O-ring for any damage before connecting the pressure line to the steering pump.
   
4. Install the low pressure power steering fluid hose to the power steering pump low pressure fitting. Be sure the hose clamps are properly reinstalled and hoses are clear of the accessory drive belts.
   
5. Install the accessory drive belt.
   
6. Install the hose on the power steering fluid return line on the front suspension cradle. Be sure the hose clamps and heat shield tubes are correctly reinstalled.
   
7. Reconnect the exhaust pipe to the exhaust manifold. Install the hangers and isolators onto the exhaust system brackets. Torque the nuts and bolts to 250 inch lbs. (28 Nm).
   
8. Reconnect the wiring harness connectors to the oxygen sensor. Install the wiring harness grommet into the vehicle floor pan.
   
9. Install the accessory drive belt splash shield.
   
10. Remove the drain pan and lower the vehicle.
    
11. Refill the power steering pump reservoir with the correct amount of clean power steering fluid.
    
12. Reconnect the negative battery cable. Bleed the power steering system.
    
13. Run the engine and check the system for leaks and proper steering operation.
    

(1) No need to know if engine block coolant drain plug was available. Once the water pump was removed, all engine block coolant was drained. (2) After removing the three engine mounting bracket bolts, I also removed the mount bracket from the the body and made enough room to replace the timing belt easier.

The supercharged 3800 engine uses two accessory drive belts. The outer belt drives the supercharger. The inner belt drives the generator, power steering pump, coolant pump and air conditioning compressor. All driven accessories are rigidly mounted to the engine. Drive belt tension is maintained by the spring loaded belt tensioner. Each belt has its own tensioner.
Remove: Place a jack with a block of wood on it under oil pan to support engine. Caution : Be sure the wood block extends past the width of the oil pan to avoid damage. 
Torque axis engine mount bolt where it connects the mount to the engine mounting bracket. 
Electrical connector from crank sensor. 
Engine mounting bracket lower stud and lower engine to allow stud to clear frame rail. 
Raise engine and reinstall bolt into torque axis mount. Lower engine to allow spacer to be removed. 
Belt(s)

Istalling: Belt. 
Spacer. Remove bolt from torque axis bracket and lower engine. 
Electrical connector to crank sensor. 
Mounting bracket stud. 
Raise engine and install torque axis mount bolt. 
Tighten bolt to 87 Nm (52 lb. ft.) 

Good luck and hope this helps.