New Product Information for Chevrolet Impala 2001
The purpose of New Product Information is to highlight
or indicate important product changes from the previous model year.
Changes may include one or more of the following items:
| • | A component comparison from the previous year |
| • | Torque values and/or fastener tightening strategies |
| • | Changed engine specifications |
| • | New sealants and/or adhesives |
| • | Disassembly and assembly procedure revisions |
| • | Engine mechanical diagnostic procedure revisions |
| • | New special tools required |
Component Comparison
No components have been changed.
Fastener Changes
No fastener changes from 2000.
Torque Values and/or Fastener Tightening Strategies
| • | Torque value for the Ignition control module assembly bracket
bolt has been changed to 30 N·m (22 lb ft). |
| • | Torque value for the Ignition control module assembly nut has
changed to 8 N·m (71 lb in). |
| • | Torque value for the Air injection pipe to throttle body nut has
changed to 10 N·m (89 lb in). |
| • | Torque value for the Generator brace bracket bolt has changed
to 50 N·m (37 lb ft). |
| • | Torque value for Spark plugs after initial installation has been
changed to 15 N·m (13 lb ft). |
Changed Engine Specifications
Engine mechanical specifications remain the same as the 2000 products.
New Sealants and/or Adhesives
No new sealants or adhesives have been added.
Disassembly and Assembly Procedure Revisions
| • | Engine Flywheel Removal (Automatic Transmission) |
| • | Engine Flywheel Removal (Manual Transmission) |
| • | Water Outlet Removal (F) |
| • | Intake Manifold Removal - Upper (C, H, W) |
| • | Intake Manifold Removal - Upper (F) |
| • | Exhaust Manifold Removal - Left (C, H, W) |
| • | Exhaust Manifold Removal - Left (F) |
| • | Exhaust Manifold Removal - Right (C, H, W) |
| • | Exhaust Manifold Removal - Right (C, H, W with NC8) |
| • | Exhaust Manifold Removal - Right (F) |
| • | Timing Chain and Sprockets Removal (L36) |
| • | Timing Chain and Sprockets Removal (L67) |
| • | Engine Block Clean and Inspect |
| • | Piston, Connecting Rod and Bearings Clean/Inspect |
| • | Timing Chain and Sprockets Installation (L36) |
| • | Cylinder Head Installation - Right |
| • | Exhaust Manifold Installation - Left (C, H, W) |
| • | Exhaust Manifold Installation - Left (F) |
| • | Exhaust Manifold Installation - Right (C, H, W) |
| • | Exhaust Manifold Installation - Right (C, H, W with NC8) |
| • | Exhaust Manifold Installation - Right (F) |
| • | Intake Manifold Installation - Lower (L36, C, H, W) |
| • | Intake Manifold Installation - Upper (C, H, W) |
| • | Intake Manifold Installation - Upper (F) |
| • | Supercharger Installation |
| • | Water Outlet Installation (F) |
| • | Oil Level Indicator and Tube Installation (F) |
Engine Mechanical Diagnostic Procedure Revisions
Engine Noise diagnostic information is now located in the platform books.
New Special Tools Required
No new special tools are required.
