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isuzu npr glow plug problems

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1981-1996 ISUZU Amigo/Pick-ups/Rodeo/Trooper Glow Plugs SYSTEM TESTING REMOVAL AND INSTALLATION MANUAL

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SYSTEM TESTING See Figures 1, 2, 3 and 4 Fig. Fig. 1: Glow plug system schematic Fig. Fig. 2: Dropping resistor and glow plug relay locations Fig. Fig. 3: Thermo switch location Fig. Fig. 4: Dropping resistor check To test the dropping resistor, check for continuity across the terminals as described in the illustration. If no continuity exists, replace the unit. 1. To test the thermo switch, first remove the switch. Submerge the end of the switch in water and raise the temperature gradually. The switch should be off at 126-140°F (53-60°C) or lower. The switch should be on at 134-145°F (57-63°C) or higher. If not, replace the switch. 2. REMOVAL & INSTALLATION See Figure 5 Fig. Fig. 5: Location of the glow plugs The glow plugs are located under the injection nozzles, and are threaded into the cylinder head. Disconnect the negative (-) battery cable. 1. Disconnect the glow plug and unscrew it from the engine. 2. To install: Lubricate with anti-seize compound before installing the plug. 3. Install and tighten the plug to 65 ft. lbs. (88 Nm). 4. Reconnect the plug wiring. 5. Connect the battery cable and check operation. 6.

2004 Chevrolet Aveo SPARK PLUG REMOVAL AND INSTALLATION MANUAL

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Courtesy of GENERAL MOTORS CORP. 2. Loosen the 4 bolts and remove the engine cover. Fig. 117: Identifying Spark Plug & Wire Courtesy of GENERAL MOTORS CORP. 3. Remove the spark plug wires from the spark plugs. Refer to Spark Plug Wire Replacement . 4. Remove the spark plugs from the engine. Courtesy of GENERAL MOTORS CORP. 2. Loosen the 4 bolts and remove the engine cover. Fig. 117: Identifying Spark Plug & Wire Courtesy of GENERAL MOTORS CORP. 3. Remove the spark plug wires from the spark plugs. Refer to Spark Plug Wire Replacement . 4. Remove the spark plugs from the engine. Fig. 118: Identifying Spark Plug & Wire Courtesy of GENERAL MOTORS CORP. NOTE: Be sure plug threads smoothly into cylinder head and is fully seated. Use a thread chaser if necessary to clean threads in cylinder head. Cross- threading or failing to fully seat spark plug can cause overheating of plug, exhaust blow-by, or thread damage. Follow the recommended torque specifications carefully. Over or under-tightening can also cause severe damage to engine or spark plug. 2. Install the spark plugs to the engine. Tighten: Tighten the spark plugs to 25 N.m (18 lb ft). 3. Install the spark plug wires to the spark plugs. Refer to Spark Plug Wire Replacement . Fig. 119: Identifying Cover Screws Courtesy of GENERAL MOTORS CORP. 4. Install the engine cover and tighten the 4 bolts. Tighten: Tighten the engine cover bolts to 3 N.m (31 lb in).

1998-2000 ISUZU RODEO/AMIGO HIGH/ERRATIC IDLE CONDITION SERVICE MANUAL

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1998 – 2000 MODELS 1. Inspect main ground points (refer to SB99*04*S001 for more information). * P6 ground point-body [on the passenger side of engine compartment, between the battery and cruise control actuator (if equipped)]. (Figure Fig. 1 ) * P10 ground point-engine (at the alternator bracket) . (Figure Fig. 2 ) Isuzu: 1998 – 2000 Rodeo AFFECTED VEHICLES:1998 – 2000 Rodeo (UE)/Amigo (UA) models with 3.2L V6 engines NOTE: Please refer to the appropriate workshop manual for the correct diagnosing procedure and/or follow the service procedures outlined in this bulletin for the vehicle being serviced. NOTE: The 1998, 1999 or 2000 Rodeo/Amigo Electrical Troubleshooting Manual can assist in locating the vehicle ground distribution (i.e., ground contact points). * Perform a voltage drop test at the main ground points. * If the voltage drop test fails, then inspect and clean both the bolt and contact point. * Verify and correct idle settings (if needed) as described in the workshop manual. * If the repair procedure on this step solves the high idle condition, then return the vehicle to the customer. If the repair procedure on this step does not solve the high idle condition, then go to step 2 (16 pin Blue Connector). B. Remove P-6/P-10 ground terminal and bolt for ground contact inspection. * Inspect ground contact area for corrosion. * Inspect bolt and thread for damage or corrosion. * Clean the ground area and fastening bolt thoroughly with a wire brush. * Replace bolt if damaged or heavily corroded. C. Install the P-6/P-10 ground terminal and bolt (tighten using hand tools only). * Torque the P-6/P-10 ground terminal bolt to (14 N.m) 10 lb.ft. 1998 – 1999 MODELS ONLY 2. Inspect the 16 pin blue connector, located under the power steering fluid reservoir for corrosion, bent, or damaged pins (specifically for the Throttle Position Sensor). (Figure Fig. 3 )

1995 Isuzu Trooper LS TIMING BELT REMOVAL AND INSTALLATION MANUAL

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TIMING BELT Removal 1. Disconnect negative battery cable. Remove air cleaner assembly. Remove upper fan shroud. Remove cooling fan assembly. Remove all accessory drive belts. 2. Remove fan pulley assembly. Remove crankshaft pulley bolt. Using Puller (J-8614-01) or equivalent, remove crankshaft pulley. Remove oil cooler hose from timing cover. Remove timing belt cover. Align all timing marks prior to belt removal. See Fig. 1 – Fig. 4 . Remove belt tensioner pusher and timing belt. Fig. 1: Aligning Timing Belt Sprockets (DOHC) Courtesy of ISUZU MOTOR CO. Installation 1. Ensure all timing marks are aligned. Install belt over one pulley at a time starting at crankshaft sprocket and working counterclockwise. Belt should go over tensioner last. Secure belt at each pulley during installation with pinch clips. See Fig. 5 . 2. Compress timing belt tensioner pusher and insert pin to retain pusher. Apply pressure to tensioner against belt, and install tensioner pusher. Tighten bolts to specification. See TORQUE SPECIFICATIONS . 3. Loosen tensioner pulley bolt. Apply pressure on belt by rotating tensioner. Tighten tensioner pulley bolt to specification.. See TORQUE SPECIFICATIONS . Remove pin from timing belt tensioner pusher. 4. Remove pinch clips from timing belt (if used). Install crankshaft pulley, tightening center bolt finger tight. Rotate crankshaft 2 turns clockwise. Ensure timing belt tensioner pusher rod protrudes proper

2001 Ford Truck F 150 Engine – Spark Plug Hole Thread Repair Procedure

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SERVICE PROCEDURE Ford Motor Company now authorizes LOCK-N-STITCH aluminum insert and tool kit as a proper repair procedure. Follow the procedure included in the tool kit for using the tools and inserts. Tool kits and inserts can be ordered from Rotunda by calling 1-800-Rotunda (768- 8632). Choose option two (2), part number 302-00001. NOTE FORD MOTOR COMPANY HAS DETERMINED THAT REPAIRS MADE WITH THESE ALUMINUM INSERTS AND LOCK-N-STITCH TOOLS DO NOT AFFECT THE HEAT TRANSFER FUNCTION BETWEEN THE SPARK PLUG AND THE CYLINDER HEAD. NOTE THIS PROCEDURE IS NOT AUTHORIZED AS A FORD WARRANTY REPAIR. FOR VEHICLES WITHIN WARRANTY, REPLACEMENT OF THE CYLINDER HEAD IS RECOMMENDED. NOTE THIS IS THE ONLY FORD AUTHORIZED PROCEDURE FOR SPARK PLUG THREAD REPAIRS. NOTE THIS PROCEDURE IS AUTHORIZED FOR ESP REPAIRS AND RETAIL REPAIRS. WARRANTY STATUS: Information Only – Not Warrantable