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how to replace pick up coil on 1994 chevy truck

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1998 Chevy Truck S10/ T10 Blazer 2WD Evaporator Core Service and Repair Manual

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Manual A/C REMOVAL PROCEDURE CAUTION: Refer to Battery Disconnect Caution in Service Precautions. 1. Disconnect the negative battery cable. 2. Remove the right side instrument panel sound insulator. 3. Remove the instrument panel storage compartment. 4. Disconnect the passenger side SIR. 5. Remove the lower right instrument panel mounting bolt. 6. Remove the left and right front speaker grilles. 7. Remove the center instrument panel sound insulator. 8. Remove the left side instrument panel sound insulator. 9. Disconnect the park brake release cable. 10. Remove the knee bolster. 11. Remove the lower left instrument panel mounting bolt. 12. Remove the BCM. 13. Disconnect the driver side SIR. 14. Remove the instrument panel cluster. 15. Remove the radio. 16. Remove the HVAC control assembly. 17. Remove the steering column retaining retaining nuts. 18. Lower the steering column. 19. Remove the instrument panel carrier. 20. Remove the left and right cowl vent grille panels. 21. Disconnect the underhood lamp electrical connector, if equipped. 22. Remove the hood. 23. Remove the VCM. 24. Remove the coolant recovery tank. 25. Remove the heater hoses. 26. Disconnect the electrical connectors from the grille mounted lamps. 27. Remove the right front headlamp assembly. 28. Remove the front bumper. 29. Remove the right wheelhouse panel. 30. Disconnect the radio antenna cable. 31. Disconnect the electrical connector for the horn. 32. Remove the right fender. 33. Remove the evaporator case heat shield, if equipped. 34. Remove the blower motor resistor. 35. Remove the evaporator case bolts and screws. 36. Remove the accumulator. 37. Remove the condenser to the evaporator line fitting. 38. Remove the bolts which retain the evaporator case to the bulkhead. 39. Pull back lightly on the heater case to remove the evaporator case. 40. Remove the evaporator case retaining screws. 41. Disassemble the evaporator case sections, and remove the evaporator core. NOTE: If replacing the evaporator core, remove the expansion (orofice) tube and install it into the new core. INSTALLATION PROCEDURE 1. Install the evaporator core. 2. Assemble the evaporator case sections. 3. Install the evaporator case retaining screws. Tighten to 2.5 N.m (24 in lb) . 4. Install the evaporator core assembly to the vehicle. 5. Install the bolts which retain the evaporator case to the bulkhead. Tighten the bolts to 4.5 N.m (40 lb in) . 6. Install the condenser to the evaporator line fitting. 7. Install the accumulator. 1998 Chevy Truck S10/T10 Blazer 2WD 8. Install the evaporator case bolts and screws. Tighten to 2.5 N.m (24 In in) . 9. Install the blower motor resistor. 10. Install the evaporator case heat shield, if equipped. 11. Install the right fender. 12. Connect the electrical connector for the horn. 13. Install the radio antenna cable. 14. Install the right wheelhouse panel. 15. Install the front bumper. 16. Install the right front headlamp assembly. 17. Connect the electrical connectors to the grille mounted lamps. 18. Install the heater hoses. 19. Install the coolant recovery tank. 20. Install the VCM. 21. Install the hood. 22. Connect the underhood lamp electrical connector, if equipped. 23. Install the left and right cowl vent grille panels. 24. Install the instrument panel carrier. 25. Reposition the the steering column, and install the steering column retaining nuts. 26. Install the HVAC control assembly. 27. Install the radio. 28. Install the instrument panel cluster. 29. Connect the driver side SIR. 30. Install the BCM. 31. Install the lower left instrument panel mounting bolt. 32. Install the knee bolster. 33. Connect the park brake release cable. 34. Install the left side instrument panel sound insulator. 35. Install the center instrument panel sound insulator. 36. Install the left and right front speaker grilles. 37. Install the lower right instrument panel mounting bolt. 38. Connect the passenger side SIR. 39. Install the instrument panel storage compartment. 40. Install the right side instrument panel sound insulator. 41. Connect the negative battery cable. 42. Inspect the system for leaks.

1994 Chevy Truck C 1500 Truck 2WD Tune-up and Engine Performance Checks/ Ignition-Timing Connector Location Change Manual

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SUBJECT: TIMING CONNECTOR LOCATION CHANGE MODELS: 1994 CHEVROLET AND GMC C/K TRUCKS WITH GASOLINE ENGINES The timing connector, which can be disconnected to return engine timing to base for adjustment purposes, has been moved from the engine compartment to inside the cab. This new location is not currently reflected in the Service or Owner’s Manual. The new location is under the dash directly below the glove compartment. The tan/black wire is routed for a short distance outside of a large wiring harness. This large harness is routed between the heater blower motor and evaporator case. The timing connector is taped to the wire bundle (Figure 1)

Malfunction Indicator Lamp (MIL) Illuminated, DTCs P0300-P0306, Engine Runs Rough (Inspect for Water Intrusion in Spark Plug Recess Area, Replace Spark Plug and Ignition Coil, Seal Ign Coil Bolt Hole)

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1. Observe the Misfire Current Counters parameter with a scan tool, in order to determine the affected cylinder(s). 2. Remove the air cleaner resonator and outlet duct. Refer to Air Cleaner Resonator and Outlet Duct Replacement in SI. 3. Disconnect the engine wiring harness electrical connectors from the affected ignition coil(s). Refer to Ignition Coil Replacement in SI. 4. Remove the ignition coil bolt(s) and ignition coil(s) from the camshaft cover. Refer to Ignition Coil Replacement in SI. Note: If water is observed in ANY of the spark plug recess areas, then it will be necessary to apply Loctite® 565 PST Thread Sealant* to ALL of the ignition coil bolt hole vents and bolt threads. 5. Inspect for water intrusion in the spark plug recess areas. Warning: Wear safety glasses when using compressed air, as flying dirt particles may cause eye injury. 6. If any water is present, then remove the water from the spark plug recess areas with low pressure air. 7. Remove the affected spark plug(s) from the cylinder head. Refer to Spark Plug Replacement in SI. 8. Replace ONLY the affected spark plug(s) with new spark plug(s) as needed into the cylinder head. Refer to Spark Plug Replacement in SI. 9. Fill the bottom of the ignition coil bolt hole vent with Loctite® 565 PST Thread Sealant* as indicated in the illustration, and apply it to the ignition coil bolt threads also. 10. Replace ONLY the affected ignition coil(s) with new ignition coil(s) as needed. Refer to Ignition Coil Replacement in SI. 11. Connect the engine wiring harness electrical connectors to the ignition coil(s). Refer to Ignition Coil Replacement in SI. 12. Replace the air cleaner resonator and outlet duct. Refer to Air Cleaner Resonator and Outlet Duct Replacement in SI. 13. Clear the DTCs with a scan tool.

2004-2006 Chevrolet Malibu, Malibu Maxx Loss of Power Steering Assist, Power Steering Warning Message Displayed in DIC, IPC/Radio Displays Erratic, DTC C0900, B1325 Set (Replace Ignition Coil/Module Assembly and Add Ground Strap)

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Correction Replace the ignition coil/module assembly and add ground strap following the procedure below. 1. Disconnect the ignition coil electrical connector. 2. Disconnect the left side spark plug wires from the ignition coil. 3. Disconnect the right side spark plug wires from the ignition coil. 4. Remove the four bolts attaching the ignition coil to its mounting bracket and remove the ignition coil. 5. Remove the ignition coil from the mounting bracket. 6. Loosen the two lower ignition coil mounting bracket nuts. 7. Remove the two upper ignition coil mounting bracket bolts and discard. Subject: Loss of Power Steering Assist, Power Steering Warning Message Displayed in DIC, IPC/Radio Displays Erratic, DTC C0900, B1325 Set (Replace Ignition Coil/Module Assembly and Add Ground Strap) Models: 2004-2006 Chevrolet Malibu, Malibu Maxx with 3.5L Engine (VINs 8, N — RPOs LX9, LZ4) 8. Install the ground strap (1), P/N 12581176, to the upper left side of the bracket as shown between the coil bracket and intake. Install the new bracket bolt, P/N 11570082, (do not tighten at this time). Prior to installing the ground strap, remove the captured nut and washers. They are not needed (simply pound them out with a hammer on a vise). 9. Install the washer (2), P/N 02436162, to the upper right side of the bracket between the coil bracket and intake. Install the new bracket bolt, P/N 11570082, (do not tighten at this time). Tighten Tighten all the ignition coil bracket bolts and nuts to 25 N·m (15 lb ft). 10. Install the new ignition coil to the mounting bracket. 11. Install the other end of the ground strap to the coil as shown and secure using a new bolt, P/N 11588715. 12. Install the other three ignition coil bolts. Tighten Tighten the bolts to 10 N·m (89 lb in). 13. Connect the right side spark plug wires to the ignition coil. 14. Connect the left side spark plug wires to the ignition coil. 15. Connect the ignition coil electrical connector

Coil Spring Spacer Installation Instructions

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1. Check to see that the spacer kit you purchased matches the year and model of your vehicle. Spacer kits two inches or taller may require a spring compressor to install. Ball joint and tie rod forks may also be useful. 2. A good portion of your front suspension will be disassembled so this would be a good time to replace any worn parts (i.e. tie rod ends, ball joints, idler arm and any bushings) Replace bushings with polyurethane replacement parts. 3. Jack up vehicle as high as possible using jack stands for support at all times. 4. With vehicle safely off the ground remove front tires. It is advisable to disassemble on side at a time so that you can use the other side as a reference for re-assembly in the event you get side tracked. 5. Remove the brake caliper from the rotor (attached with 2 bolts inside the caliper or with press-in clips depending on the vehicle). Do not remove the brake line from the caliper unless you intend to bleed the brakes at this time. Set the caliper aside or tie it up to the frame rail. Avoid pinching the brake line. 6. Remove the tie rod from the spindle using the proper tools. Do not hit the tie rod itself or the nut on the threaded portion of the tie rod or it may cause damaged and need replacing. 7. Remove the anti-sway bar from the lower control arm. This would be a good time to replace the end link bushings with polyurethane replacement bushings. 8. If your vehicle is equipped with anti-lock brakes you must now disconnect the front rotor sensor from the dust shield or spindle and set it aside. 9. Disconnect your shock absorber completely from the vehicle whether it is mounted inside the coil spring or not. 10. Support the lower control arm with jack just touching the arm. This will prevent it from dropping when the ball joint is disconnected. 11. The use of a coil spring compressor is recommended before the following steps are taken. 12. Disconnect the upper ball joint from the top of the spindle using the proper tools. Do not hit the ball joint or the threaded end of the ball joint. Once the ball joint is free the spindle should move easily. 13. Be careful when lowering the lower control arm. The coil spring is under high compression and may shoot out when released. Do not stand near the side of the truck during this step. Lower the jack so that the lower control arm swings down. If the coil spring has not fallen out on it’s own you may need to use a pry bar from the front of the vehicle to remove it. 14. Note which end of the coil spring is “bottom” for installation. Also note the depression in the lower control arm. It is important that the last winding of the coil spring fit into the indentation completely so that the vehicle will sit level. Do not switch coil springs from side to side as some vehicles have a specific “right” and “left” coil spring. 15. Check the coil spacer for proper fitment into the coil spring mount in the frame. The flat part of the spacer should face up and touch the top of the spring mount. Some vehicles have guiding tabs to center the coil spring in its top mount. These tabs may have become bent and need to be bent back to allow the spacer to properly fit in the mount. 16. Install the coil spring with the spacer on top of it. If used the coil spring compressor should still be on the spring in a compressed state. If it is not you may need to compress the spring before re-installing. Make sure the spacer is centered in the upper mount and the bottom of the spring is properly nested in the receptor groove on the lower control arm. If you are installing a two-inch or taller spacer you may need a spring compressor. Follow all safety rules when installing the coil spring as it will be under extreme compression. 17. Raise the lower control arm with a jack once the coil spring and spacer are properly lined up. Raise until the spindle is high enough to bolt on the upper ball joint. Before bolting on the upper ball joint make sure the brake caliper and brake line are where they need to be since some brake lines run inside the spindle and outside the coil spring. 18. With the upper ball joint tight and a cotter pin re-installed you may now remove the jack from under the lower control arm. 19. Assemble all of the components previously removed (sway bar with new polyurethane bushings, tie rod ends with polyurethane grease boot, brake caliper and anti-lock sensor). Don’t forget the shock with a new colored boot while it is off. 20. Repeat instructions for other side. 21. After properly installing both spacers you can install your front tires and lower vehicle back to the ground. 22. Your vehicle may sit too high at first because the suspension needs to settle. Carefully back the vehicle up and drive forward a few times using the brakes frequently. Park on level ground and check out your lift. 23. The vehicle will now require a front wheel alignment. Failure to do so may result in severe wear on your tires and may pull to one direction