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how to replace a nissan quest catalytic converter

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2005 Nissan Quest Malfunction Indicator Light (MIL) is ON

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1 Check scan data for fuel trims to see if the system is in proper fuel control – look for 0% plus or minus 10% in generic or 90 – 110 % alpha in manufacture specific. 2. Verify there are no exhaust leaks. 3. Drive the vehicle and check the bank 1 rear O2 sensor activity on the scan tool or with a voltmeter to see if the bank 1 rear O2 sensor is cross counting like a typical front O2 sensor would. Potential Causes: Catalytic Converter Tech Tips: If in manufacture specific with the scan tool, Nissan displays fuel trims in alpha. 100% alpha is the same as 0% fuel trim. This vehicle has front air fuel ratio sensors – not O2 sensors. Bank 1 is the firewall bank. Bank 2 is the radiator bank. Before the catalytic converter lights off, the rear O2 sensor voltage is usually down around 0.2 – 0.4 volts or so but when the catalytic converter lights off, it uses up a lot of the oxygen so the rear O2 sensor voltage will typically reads around 0.6 – 0.7 volts and have some movement but not a lot of movement and should not cross count above and below 0.5 volts. The catalytic converter is covered under the 8 year 80,000 mile federal emissions warranty.

NISSAN Altima, Quest, Maxima MIL ON WITH P0340 / P0345 (CMP SENSOR) AND/ OR ENGINE IS HARD TO START WHEN WARM REPAIR MANUAL

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ACTIONS: • If you only have DTC P0340, replace only Bank 1 CMP (Camshaft Position) Sensor. • If you only have DTC P0345, replace only Bank 2 CMP (Camshaft Position) Sensor. • If you have both codes, replace both sensors. • For a “hard to start warm” incident, replace both sensors, even if you have no codes. Refer to sections EC and EM in the correct Service Manual for sensor replacement information. If replacement of the sensors does not solve your incident, go back to ASIST for further diagnostic and repair information. PARTS INFORMATION DESCRIPTION PART # QUANTITY Camshaft Position Sensor- Bank 1 23731-6J906 1 Camshaft Position Sensor- Bank 2 23731-AL616 1 CLAIMS INFORMATION Submit a Primary Failed Part (PP) line claim using the following claims coding: DESCRIPTION PFP OP-CODESYSDIAFRT RPL One Camshaft Position Sensor (Bank 1 or Bank 2) (1) DE64AA AA 32 (2) RPL Both Camshaft Position Sensors (Banks 1 and 2) (1) DE67AA AA 32 0.3 hrs. (1) Reference the Parts Information table and use the indicated sensor P/N’s as the PFP. (2) Reference the current Nissan Warranty Flat Rate Manual and use the indicated FRT

2003 Chevrolet Chevy K Silverado Exhaust Popping/Snapping Noise When Vehicle is Hot, at Idle, or Immediately After Vehicle is Shut Off (Replace Muffler Heat Shield) Service Manual

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Follow the service procedure below to correct this condition. Important: Some popping/snapping noise from the exhaust system during cool down is a normal condition. The customer should be made aware that this service procedure is designed to reduce but not eliminate all exhaust system popping and snapping during cool down. 1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information. Caution: 2. Remove the nuts securing the muffler to the catalytic converter. 3. On 6.0L and 8.1L equipped vehicles only, loosen the exhaust pipe clamp. Important: Do not use oil base lubricants on the rubber exhaust hangers. 4. Apply a soapy solution to the exhaust pipe hanger rods in order to ease the removal of the exhaust hangers. 5. Pry the exhaust hangers free from the exhaust pipe hanger rods. Important: It is not necessary to remove the muffler from the vehicle to replace the muffler heat shield. 6. Reposition the muffler to gain access to the muffler heat shield 7. Using an air-powered hack saw blade, or equivalent, cut off the existing muffler heat shield just as the heat shield rises off of the muffler. See the illustration above. 8. Remove the heat shield from the muffler. 9. Hammer flush the remaining heat shield to the muffler. Important: 10. Install the new heat shield (see parts list below) onto the muffler as shown above.

4L60-E Automatic Transmission/Torque Converter Clutch (TCC) Shudder, Water in Transmission (Repair Transmission and Replace Transmission Filler Tube, Level Indicator and Seal)4L60-E Automatic Transmission/Torque Converter Clutch (TCC) Shudder, Water in Transmission (Repair Transmission and Replace Transmission Filler Tube, Level Indicator and Seal) Transmission Repair

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Transmission Repair 1. Remove the transmission. Refer to the appropriate SI procedure. 2. Disassemble and inspect the transmission. Refer to Unit Repair Automatic Transmission – 4L60-E/4L65-E. Important: Subject: 4L60-E Automatic Transmission/Torque Converter Clutch (TCC) Shudder, Water in Transmission (Repair Transmission and Replace Transmission Filler Tube, Level Indicator and Seal) Models: 2004-2005 Buick Rainier 2003-2005 Chevrolet TrailBlazer Models 2003-2005 GMC Envoy Models 2003-2004 Oldsmobile Bravada 2005 Saab 9-7X with 4.2L In-Line 6 Cylinder Engine (VIN S — RPO LL8) • Visible rust on the transmission fluid level indicator. • Visible water in the oil pan. • A milky white substance inside the pan area. • Spacer plate gaskets that appear to be glued to the spacer plate, valve body or case. • Rust on internal transmission iron/steel components. • Remove the surge tank cap and examine the coolant for signs of contamination with transmission fluid (the coolant will have a milky, not clear appearance). • If the coolant has a normal, clear appearance, the radiator should not be replaced. • The cooler can also be tested by following the Coolant System Leak Test procedure (SI Document ID# 877442). Do NOT replace a radiator without verifying that the transmission oil cooler is leaking. If water or coolant is found in the transmission, the following components MUST be replaced. Replace the Transmission Fluid Filler Tube, Seal and Fluid Level Indicator WITH the transmission REMOVED from vehicle. 1. Remove the transmission fluid filler tube from the transmission. 2. Replace the transmission fill tube seal, P/N 1259475. 3. Replace the transmission fill tube, P/N 15000220, following the appropriate SI Document for Transmission Installation. 4. Replace the transmission fluid level indicator, P/N 15069769 when appropriate during the transmission installation. Replace the Transmission Fluid Filler Tube, Seal and Fluid Level Indicator with the transmission in the vehicle. 1. Remove the air cleaner outlet duct. Refer to Air Cleaner Element Replacement (SI Document ID# 1364496). 2. Remove the transmission fluid level indicator from the filler tube. 3. Remove the filler tube nut (2) located on the right side of the engine. 4. Remove the filler tube from the vehicle. Tip It is necessary to remove the two A/C line (suction line / low side of muffler hose) retainers and reposition • Replace all of the rubber type seals. • Replace all of the composition-faced clutch plate assemblies including the band. • Replace all of the nylon parts (Thrust Washers). • Replace the torque converter. • Thoroughly clean and rebuild the transmission, using new gaskets and oil filter. • Flush and flow check the transmission oil cooler using J 45096. Refer to Corporate Bulletin Number 02-07-30- 052C or newer – Automatic Transmission Oil Cooler Flush and Flow Test Essential Tool J 45096 TransFlow .
the A/C line to allow proper clearance for installation of the new transmission fluid fill tube. 5. Remove the A/C line at the oil level indicator tube bracket nut. 6. Remove the A/C bracket bolt from the engine lift hook. 7. Reposition the A/C line upward. 8. Install the new transmission filler tube, P/N 15000220, into position but NOT into the transmission at this time. 9. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information (SI Document ID# 744862). 10. Remove the two bolts securing the transmission heat shield to the transmission. 11. Remove the transmission heat shield from the transmission. 12. Remove the old filler tube seal from the transmission case. 13. Install a new seal, P/N 1259475 into the transmission case. 14. Position the new transmission filler tube into the transmission seal. 15. Install the transmission heat shield to the transmission. 16. Install the two bolts securing the transmission heat shield to the transmission. Tighten Tighten the bolts to 17 N·m (13 lb ft). 17. Lower the vehicle. 18. Install the nut securing the filler tube to the stud. Tighten Tighten the nut to 10 N·m (89 lb in). 19. Reposition the A/C line into place. 20. Install the A/C line bracket to the oil level indicator tube stud and secure the bracket with the nut. 21. Install the A/C line bracket to the engine lift bracket and secure the A/C bracket with the bolt

1996 Nissan Altima GLE TIMING CHAIN REMOVAL AND INSTALLATION MANUAL

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Removal 1. Release fuel pressure. See FUEL PRESSURE RELEASE . Drain coolant from radiator and cylinder block. Drain engine oil. Disconnect all necessary coolant hoses, electrical connectors, vacuum hoses, fuel lines and control cables. 2. Remove front exhaust tube. Remove intake manifold collector supports, and intake manifold. Remove exhaust manifold with catalytic converter. Remove air injection valve pipe. Remove intake air duct. Remove radiator fan and shroud. Remove injectors and fuel rail as an assembly. Remove distributor cap and spark plugs. 3. Set cylinder No. 1 at TDC of compression stroke, ensuring marks on crankshaft pulley and front cover align, and distributor rotor points to spark plug wire No. 1 on cap. Remove cylinder head cover. Remove distributor. 4. Prevent camshafts from turning, and remove camshaft sprocket bolts. Remove camshaft sprocket. See Fig. 13 . Mark and remove camshaft bearing caps in reverse order of installation. See Fig. 16 . Remove camshafts. 5. Loosen cylinder head bolts in 2 or 3 steps, in reverse order of tightening sequence. See Fig. 11 . Remove camshaft sprocket cover. Remove outer (upper) chain tensioner and guide. Remove outer timing chain. Remove idler sprocket bolt. Remove cylinder head. 6. Remove oil pan and oil strainer. See OIL PAN. Remove accessory drive belts. Remove A/C compressor idler pulley (if equipped). Remove crankshaft pulley. Remove front cover. Remove chain tensioner, tensioner arm and chain guides. Remove inner (lower) timing chain and idler sprocket. Remove oil pump drive spacer and crankshaft sprocket. Inspection 1. Inspect chain roller links. Replace chain if roller links are cracked or worn. Inspect cylinder head and cylinder block mating surfaces for warpage. If warpage exceeds specification, machine cylinder head. See CYLINDER HEAD under ENGINE SPECIFICATIONS. 2. If machining reduces cylinder head height to less than specification, replace cylinder head. After machining, rotate camshaft by hand. Replace cylinder head if camshaft does not rotate freely.