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how to replace pick up coil on 1994 chevy blazer

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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.

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

1984 Toyota Pickup ELECTRICAL Toyota Ignition System – Nippondenso Electronic Ignition Repiar Manual

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High Tension Wire Resistance 1. Set ohmmeter to x 1000 range and attach leads to each end of high tension wire. On Isuzu I’Mark and P’UP, resistance should not exceed 73,500 ohms per foot. 2. On all other models, resistance should not exceed 25,000 ohms per wire. If it does, replace wires. Fig. 5: Checking Pick-Up Coil Resistance Connect ohmmeter leads to distributor connector terminals. Pick-Up Coil Resistance Set ohmmeter to x 100 range, measure pick-up coil resistance at distributor connector. See Fig. 5 and PICK-UP COIL (SIGNAL GENERATOR) RESISTANCE table. Also check wires for shorts or opens. PICK-UP COIL (SIGNAL GENERATOR) RESISTANCE (OHMS) NOTE: On Toyota Celica, Starlet, 4Runner and Pickup models, a signal generator is used in place of a pick-up coil. Application

1989-1996 Dodge Dakota Trucks COIL Ignition Tests Manual

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Dakota Trucks 1989-1996 Ignition Tests COIL The ignition coil for the vehicles covered by this guide is in the following locations: • 1989-92 engines: mounted to the firewall • 1993-96 2.5L engines: mounted on the thermostat housing in front of the coolant temperature sensor • 1993-96 V6 and V8 LDC engines: mounted to a bracket bolted to the right engine cylinder head • 1993-96 5.9L HDC engines: mounted to a bracket bolted to the air injection pump (AIR pump) mounting bracket. Fig. 2: Ignition coil mounting-all 1989-92 models Fig. 3: Ignition coil wiring and mounting hardware-1993- 96 2.5L engine 1. Inspect the ignition coil for arcing while the engine is running. If the engine will not start, this can be performed while the engine is cranked by either an assistant or a remote starter. Look at the coil in dim or low light to aid visibility of any arcing. Fig. 4: Ignition coil mounting-1993-96 3.9L and 5.2L/5.9L LDC engines 2. Arcing at the tower will carbonize the wire boot, which, if it is connected to a new ignition coil, will cause the coil to fail. In such cases, clean all the carbonization away or replace the components as necessary. Fig. 5: Ignition coil mounting-1993-96 5.9L HDC engine 3. Using a coil tester or ohmmeter according to the manufacturer’s instructions, test the primary and secondary resistance. Replace any coil that does not meet the specifications indicated in the accompanying chart. 4. Inspect the secondary coil wire for any sign of damage. Replace if any damage is found. Carbon tracking on the old wire can cause arcing and the failure of a new ignition coil. REMOVAL & INSTALLATION 1989-92 Models See Figures 6 and 7 1. Disconnect the negative battery cable. 2. Disconnect the three wires from the coil. Mark them to identify for installation. Fig. 6: Remove the coil bracket bolt at the cowl Fig. 7: Unscrew the coil mounting hardware, then remove the coil from the vehicle 3. Unplug the condenser suppressor connector from the coil, if equipped. 4. Unbolt and remove the coil. To install: 5. Bolt down the coil with old bolts. 6. Connect wires to coil making sure that the proper wires are connected where they should be. 7. Connect the condenser suppressor, if equipped. 8. Connect the battery negative cable Removal and Installation V6 AND V8 ENGINES 1. Disconnect the negative battery cable. 2. Disconnect the primary wiring from the ignition coil. 3. Disconnect the secondary spark plug wire from the coil. 4. Remove the two bolts and withdraw the coil from its mounting bracket. To install:
5. Position the coil on its bracket and install the two bolts. Tighten them to 100 inch lbs. (11 Nm). If the bracket has been tapped for coil mounting bolts, these fasteners require less torque, so tighten them to 50 inch lbs. (5 Nm). 6. Connect all wiring to the ignition coil. TESTING See Figure 1 The only test you can perform without a DRBII scan tool, or equivalent, is a basic check of the sensor only.