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how to replace idler pulley on 1993 buick century

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1998 Chrysler Town And Country LX SERPENTINE BELT SLIPS OFF IDLER PULLEY REPAIR PROCEDURE

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REPAIR PROCEDURE This repair is compatible with DaimlerChrysler’s Mobile Service Program and does not require hoists or other full service facility special equipment. 1. Remove the serpentine belt from around the idler pulley by rotating the tensioner clockwise ( Fig. 3 ). 2. Remove the purge duty cycle solenoid and wiring harness from the right side engine mount. 3. Remove the two right side engine mount insulator vertical fasteners and loosen the horizontal fastener. DO NOT remove the large nut in the center of the core of the insulator ( Fig. 4 ). 4. Remove the load on the engine mount by carefully supporting the engine with a floor jack. 5. Remove the vertical and horizontal fasteners from the engine side bracket. Remove the engine mount assembly. 6. Remove the idler pulley from the engine mounting bracket. ( Fig. 3 ). 7. Remove the engine mounting bracket. 8. Install a new engine mounting bracket. Torque the fasteners to 40-68 N.m (30-50 ft-lbs.). 9. Install the idler pulley to the engine mounting bracket. Torque the fastener to 40-68 N.m (30-50 ft-lbs.). 10. Properly route and position a serpentine belt onto all pulleys except the idler pulley (Use a new belt if there is any evidence of damage to the original one). 11. Rotate the belt tensioner clockwise until the belt can be installed onto the idler pulley. Slowly release the belt tensioner. 12. Install the engine mount; torque the assembly in the following order, engine mount to rail fasteners 68 N.m (50 ft-lbs.), vertical fastener 102 N.m (75 ft-lbs.), and horizontal fastener 150 N.m (111 ft-lbs.). 13. Install the purge duty cycle solenoid to the engine mount. 14. Start the vehicle and let it run for one minute then turn the engine off. 15. Verify the serpentine belt is properly aligned ( Fig. 1 ) 16. If the serpentine belt has moved toward the outboard edge of the idler pulley, further diagnosis will be required. WARRANTY INFORMATION POLICY: Reimbursable within the provisions of the warranty. LABOR OPERATION NO: 07-20-20-96 TIME ALLOWANCE: 0.7 Hrs. FAILURE CODE: P8 – New Par

1997 Buick Century Limited 3.1/ 3.4L COLD ENGINE TICK OR RATTLE AFTER START-UP (REPLACE PISTON/ PIN ASSEMBLY)

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Some customers may comment on a ticking type noise that begins shortly after cold engine start-up and gradually diminishes as the engine warms up. In most cases, the noise is gone after five (5) minutes. In severe cases, the noise may not disappear when lhe engine is hot. CAUSE Under normal design tolerances when the piston pin bore is produced at the maximum tolerance and the piston pin is produced at the minimum tolerance (min-max tolerance) trace noise levels can occur. This level of noise does not affect the reliability or durability of the product. CORRECTION If piston-to-pin noise is detected and the customer desires the condition to be corrected, replace all six pistons with pin assemblies. The new piston sets have a minimal piston-to-pin clearance. Remember, piston-to-pin noise occurs in both park and drive at engine idle rpm and it varies in intensity depending on the number of pistons involved. A ticking sound means one piston is affected whereas a rattle or diesel type sound indicates more than one piston affected. The following should also be checked: 1. On W-Cars, make sure the right side engine splash shield is not contacting the engine crankshaft balancer. This condition usually happens cold and is caused by the shield curling when cold. 2. Reference Service Bulletin 57-71-06 for transmission rattle noise often confused for engine rattle noise. 3. Reference Service Bulletin 47-61-36 for Accessory Drive Belt Tensioner noise. 4. Check cylinder bore diameter and piston diameter as outlined in the Service Manual. Use the procedure in the appropriate Service Manual for piston replacement. Service Bulletin 57-61-24 (Section 6 – Engine). NOTE: Excessive cylinder bore to piston diameter clearance can cause a similar type noise. NOTE: When installing the new piston and pin assembly onto the existing rods, use extreme care to avoid damage to either the pin or piston bore. If damage to these areas occurs, the noise will return because the damage will cause wear and excessive clearance

1993 Mitsubishi 3000GT V6-2972cc 3.0L DOHC Timing Belt: Service and Repair Manual

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.Removal of crankshaft pulley. Using special tools remove the crankshaft pulley from the crankshaft. CAUTION: -Use only the specified special tools, or a damaged pulley damper could result. 10.Removal of engine support bracket. Remove the engine support bracket in the numbered sequence shown in the illustration. Spraying lubricant, slowly remove the bolt (reamer bolt) indicated by the arrow. CAUTION: -Keep in mind that the reamer bolt is sometimes heat seized on the engine support bracket. 12.Removal of timing belt. (a)Align the timing marks.
1993 Mitsubishi 3000GT V6-2972cc 3.0L DOHC 8.80 Page 3 (b)Make a mark on the back of the timing belt indicating the direction of rotation so it may be reassembled in the same direction it it is to be reused. (c)Loosen the center bolt on the tensioner pulley to remove the timing belt. CAUTION: -Water or oil on the belt shorten its life drastically, so the removed timing belt, sprocket, and tensioner must be free from oil and water. These parts should not be washed. Replace parts if seriously contaminated. If there is oil or water on each part check the front case oil seals, camshaft oil seal and water pump for leaks. 1993 Mitsubishi 3000GT V6-2972cc 3.0L DOHC 13.Installation of auto tensioner. (a)If the auto tensioner rod is in its fully extended position, reset it as follows:1993 Mitsubishi 3000GT V6-2972cc 3.0L DOHC 8.80 Page 5 1)Keep the auto tensioner level and, in that position. clamp it in the vise with soft jaws. 2)Push in the rod little by little with the vise until the set hole (A) in the rod is aligned with that (B) in the cylinder. CAUTION: -Push in the rod slowly to prevent the push rod from being damaged. 3)Insert a wire [1.4 mm (0.055 in.) in diameter] into the set holes. 4)Unclamp the auto tensioner from the vise. (b)Install the auto tensioner. CAUTION: -Leave the wire installed in the auto tensioner. 12.Installation of timing belt. (a)Align the timing marks on the respective sprockets. In case of the camshaft sprockets in the front bank, proceed as follows: 1)Install the crankshaft pulley. Shift the timing mark on the crankshaft sprocket by three teeth to lower the piston in No. 1 cylinder slightly from the top dead center on compression stroke. CAUTION: -Turning the camshaft sprocket with the piston in No.1 cylinder located at TDC on compression stroke may cause the valves to interfere with the piston

2003 Kia Optima L4-2.4L Timing Belt Service and Repair Manual

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3.Turn the crankshaft clockwise and align the timing marks so as to bring the No.1 cylinder to compression top-dead-center position. At this time the timing marks of the camshaft sprocket and the upper surface of the rocker cover should coincide, and the dowel pin of the camshaft sprocket should be at the upper side. Remove the auto tensioner. CAUTION: Rotate the crankshaft clockwise. 4.Remove the timing belt. NOTE: If the timing belt is reused, make an arrow mark indicating the turning direction (or the front of the engine) to make sure that the belt is reinstalled in the same direction as before 6.When the oil pump sprocket nut is removed, first remove the plug at left side of the cylinder block and insert a screwdriver to check the left counter balance shaft in position. Screwdriver used for this purpose should have a shaft 8 mm (0.3 inch) in diameter which can be inserted more than 60 mm (2.36 inch) 7.Remove the oil pump sprocket retaining nut and remove the oil pump sprocket. 8.Loosen the right counter balance shaft sprocket mounting bolt until it can be loosened by hand. 9.Next, remove tensioner “B” and remove timing belt “B”. CAUTION: After timing belt “B” has been removed, do not attempt to loosen bolt while holding sprocket with pliers, etc. 10.Remove the crankshaft sprocket “B” from crankshaft. INSPECTION Sprockets, Tensioner Pulley, and Idler Pulley 1.Check the camshaft sprocket, crankshaft sprocket, tensioner pulley, and idler pulley for abnormal wear, cracks, or damage. Replace as necessary. 2.Inspect the tensioner pulley and the idler pulley for easy and smooth pulley rotation and check for play or noise. Replace as necessary. 3.Replace if there is grease leak

4T65E Transmission 1-2 Shift Shudder at Light to Moderate Acceleration (Replace Complete Second Clutch Assembly)

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2001-2004 Buick Regal 2001-2005 Buick Century, LeSabre 2002-2007 Buick Rendezvous 2005-2007 Buick Terraza, LaCrosse, Allure (Canada Only) 2006-2007 Buick Lucerne 2001-2005 Chevrolet Venture 2001-2007 Chevrolet Impala, Monte Carlo 2005-2007 Chevrolet Uplander 2006-2007 Chevrolet Malibu SS, Malibu Maxx SS 2001-2002 Oldsmobile Intrigue 2001-2003 Oldsmobile Aurora 2001-2004 Oldsmobile Silhouette 2001-2005 Pontiac Aztek, Bonneville, Montana 2001-2007 Pontiac Grand Prix 2005-2007 Pontiac Montana SV6 2006-2007 Pontiac G6 GTP 2005-2007 Saturn Relay with 4T65E Automatic Transmission this service kit contains: Second Clutch Housing Fluid Seal Rings (613), a Second Clutch Assembly (617), a Case Cover (Channel Plate) Upper Gasket (430), and a Case Cover (Channel Plate) Lower Gasket (429). In addition to the content of this service kit, four other gaskets not included in this service kit will also be needed to complete the repair, a Control Valve Body Cover (Side Cover) Gasket (54), a Control Valve Body Cover (Side Cover) Inner Gasket (59), a Case Cover Lower Gasket (429), and a Case Cover Upper Gasket (430). These gaskets can be obtained by ordering service kit P/Ns 24206959 and 24206391. Be sure to use ONLY the Second Clutch Assembly and Second Clutch Housing Fluid Seal Rings provided in this service kit. DISCARD the Second Clutch Assembly and Second Clutch Housing Fluid Seal Rings removed from the transmission being serviced. Disassemble ONLY the Oil Pump Assembly from the Case Cover (Complete). DO NOT disassemble the Control Valve Body from the Case Cover. Remove ONLY the Case Cover-to- Case bolts to remove the Case Cover and Valve Body from Transmission Case AS AN ASSEMBLY . To access all Case Cover-to-Case bolts, it is necessary to remove the Pressure Control Solenoid Valve Assembly (322), and 1-2 & 3-4 Shift Solenoid Valve Assemblies (315A, 315B).