New TSB: Needle Bearings Found in Oil Pan
Thread Starter
TECH Enthusiast
Joined: Nov 2001
Posts: 653
Likes: 0
New TSB: Needle Bearings Found in Oil Pan Needle Bearings Found In Oil Pan (Replace Rocker Arms) #02-06-01-029
1998-2002 Chevrolet Camaro, Corvette
1998-2002 Pontiac Firebird
2002 Cadillac Escalade, Escalade EXT
1999-2002 Chevrolet Silverado
2000-2002 Chevrolet Suburban, Tahoe
2002 Chevrolet Avalanche
1999-2002 GMC Sierra
2000-2002 GMC Yukon, Yukon XL
2003 HUMMER H2
with 4.8L, 5.3L, 5.7L or 6.0L V8 Engine (VINs V, T, G, S, U -- RPOs LR4,
LM7, LS1, LS6, LQ4, LQ9)
Condition
Some customers may comment or technicians may notice needle bearings
being found during an engine oil change. The bearings may be found in
either the drain pan used or on the magnetic oil pan drain plug.
Cause
One or more rocker arms may have experienced a bearing failure.
Correction
Inspect all of the rocker arms for bearing retainer cap failure. If one
or more defective rocker arms are found, replace all 16 rocker arms.
Refer to the Engine Mechanical sub-section in the appropriate Service
Manual.
If no condition with the rocker arms is found, refer to the service
history for previous rocker arm repair. If previous rocker arm repair
was made, then the engine may not have been thoroughly cleaned of loose
roller bearings. If no previous rocker arm repair was made, then look
for another condition.
Remove the oil pan and clean out any additional bearings found within
the oil pan. Refer to the Engine Mechanical sub-section in the
appropriate Service Manual.
Install the oil pan. Refer to the Engine Mechanical sub-section in the
appropriate Service Manual.
Parts Information
Part Number
Description
Qty
10214664
Rocker Arm
16
12560696
Gasket - Rocker Arm Cover
2
12558760
Gasket - Oil Pan
1
http://www.hoodscoop.com/ubb/ultimat...c;f=4;t=031928
1998-2002 Chevrolet Camaro, Corvette
1998-2002 Pontiac Firebird
2002 Cadillac Escalade, Escalade EXT
1999-2002 Chevrolet Silverado
2000-2002 Chevrolet Suburban, Tahoe
2002 Chevrolet Avalanche
1999-2002 GMC Sierra
2000-2002 GMC Yukon, Yukon XL
2003 HUMMER H2
with 4.8L, 5.3L, 5.7L or 6.0L V8 Engine (VINs V, T, G, S, U -- RPOs LR4,
LM7, LS1, LS6, LQ4, LQ9)
Condition
Some customers may comment or technicians may notice needle bearings
being found during an engine oil change. The bearings may be found in
either the drain pan used or on the magnetic oil pan drain plug.
Cause
One or more rocker arms may have experienced a bearing failure.
Correction
Inspect all of the rocker arms for bearing retainer cap failure. If one
or more defective rocker arms are found, replace all 16 rocker arms.
Refer to the Engine Mechanical sub-section in the appropriate Service
Manual.
If no condition with the rocker arms is found, refer to the service
history for previous rocker arm repair. If previous rocker arm repair
was made, then the engine may not have been thoroughly cleaned of loose
roller bearings. If no previous rocker arm repair was made, then look
for another condition.
Remove the oil pan and clean out any additional bearings found within
the oil pan. Refer to the Engine Mechanical sub-section in the
appropriate Service Manual.
Install the oil pan. Refer to the Engine Mechanical sub-section in the
appropriate Service Manual.
Parts Information
Part Number
Description
Qty
10214664
Rocker Arm
16
12560696
Gasket - Rocker Arm Cover
2
12558760
Gasket - Oil Pan
1
http://www.hoodscoop.com/ubb/ultimat...c;f=4;t=031928
