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which could cause the symptom. Symptom List Refer to a symptom diagnostic procedure from the following list in order to diagnose the Leak at Front Slip Yoke Universal Joint Noise Ping, Snap, or Click Noise Knock or Clunk Noise Scraping Noise Squeak Noise Shudder on Acceleration at Low Speed LEAK AT FRONT SLIP YOKE Checks Action DEFINITION: A few drops of lubricant that are leaking from the splined yoke are normal. 1. Inspect the slip yoke for burrs. Careful use of crocus cloth or fine stone honing can 2. If the yoke is badly burred, corroded, or worn, replace the yoke. 3. If the welch plug is leaking replace the yoke. Refer to Universal Joint Replacement - Nylon Injected Ring 4. Replace the oil seal. Refer to one of the following procedures: For vehicles equipped with the MP For vehicles equipped with the MP 1625/1626-
2008 Chevrolet Silverado 1500 2008 DRIVELINE/AXLE Propeller Shaft - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
UNIVERSAL JOINT NOISE Seal Replacement . For vehicles equipped with the MP 3023/3024- For vehicles equipped with the 4L60-E automatic For vehicles equipped with the 6L50/6L80/6L90 For vehicles equipped with the Allison There is a faulty oil seal in Replace the oil seal. Refer to one of the following procedures: For vehicles equipped with the MP 1222/1225/1226- For vehicles equipped with the MP 1625/1626-NQF For vehicles equipped with the MP 3023/3024-NQH For vehicles equipped with the 4L60-E automatic For vehicles equipped with the 6L50/6L80/6L90 For vehicles equipped with the Allison transmission, Problem Action One or more of the universal Replace the universal joint. Refer to Universal Joint
2008 Chevrolet Silverado 1500 2008 DRIVELINE/AXLE Propeller Shaft - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
PING, SNAP, OR CLICK NOISE KNOCK OR CLUNK NOISE SCRAPING NOISE joints are worn or damaged. Replacement - External Snap Ring or Universal Joint Replacement - Nylon Injected Ring. One or more of the universal Replace the universal joint. Refer to Universal Joint The yoke retainer strap bolts Tighten the yoke retainer strap bolts to specifications. Refer to Checks Action DEFINITION: A ping, snap or click is usually heard on initial load after the transmission is Tighten the bolts and the pinion nut to specified torque. Refer One or more of the universal Replace the universal joint. Refer to the following: Universal Joint Replacement - Nylon Injected Ring Universal Joint Replacement - External Snap Ring Heat shield interference Eliminate interference. Checks Action DEFINITION: Knocking or clunking noise occurs when operating the vehicle in high gear Replace the universal joint. Refer to the following: Universal Joint Replacement - Nylon Injected Ring Universal Joint Replacement - External Snap Ring The side gear hub Replace the differential case and/or the side gears. Refer to Checks Action DEFINITION: A scraping noise occurs when driving the vehicle at various speeds.
2008 Chevrolet Silverado 1500 2008 DRIVELINE/AXLE Propeller Shaft - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
SQUEAK NOISE SHUDDER ON ACCELERATION AT LOW SPEED The pinion flange deflector Correct the interference as necessary. Center bearing heat shield, Correct the interference as necessary. Exhaust pipe contact. Correct the interference as necessary. Balance weight detached A detached balance weight may create a sliding, scraping, or 1. Inspect the propeller shaft and tube for a detached balance weight. 2. Replace components as required. Do not attempt to reattach the balance weight to the propeller shaft. Checks Action DEFINITION: When driving the vehicle at various speeds a squeaking sound occurs. Replace the universal joint. Refer to the following: Universal Joint Replacement - Nylon Injected Ring Universal Joint Replacement - External Snap Ring C/V boot worn or torn. Replace components as necessary. Center bearing is dry or Lube or replace the center bearing. Checks Action DEFINITION: When the vehicle is accelerating at low speed a shudder occurs. Replace or tighten the yoke retainer strap bolts to The driveline joint angle is Determine if the driveline angle is incorrect and correct as One or more of the universal Replace the universal joint. Refer to the following: Universal Joint Replacement - Nylon Injected Ring
2008 Chevrolet Silverado 1500 2008 DRIVELINE/AXLE Propeller Shaft - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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