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Engine Oil Level Indicator and Tube Change

Subject:Engine Oil Level Indicator and Tube Change

Models:2000-01 Chevrolet and GMC C/K Pickup Models (Silverado, Sierra)
2001 Chevrolet and GMC C/K Utility Models
with 4.8 L, 5.3 L or 6.0 L V8 Engine (VINs V, T, U -- RPOs LR4, LM7, LQ4)



This bulletin is being revised to include additional model year and part information. Please discard Corporate Bulletin Number 00-06-01-015A (Section 06 -- Engine/Propulsion System).


During the 2000 and 2001 model year, two different designs of Engine Oil Indicator and Engine Oil Indicator Tubes were used in production vehicles.

Each Engine Oil Indicator must be used with the correct Engine Oil Indicator Tube. Incorrect engine oil levels will be indicated if an Engine Oil Indicator is used with the wrong Engine Oil Indicator Tube.

In some instances, the Check Engine Oil Level message may be displayed when the engine oil level is 1 quart (aprox. 0.95 Liters) low. Do not replace the engine oil level sensor for this condition.

Engine Oil Indicators and Tubes can be identified as follows (see Figure 1 - Engine Oil Level Indicator and Tube Identification):

Figure 1 -- Engine Oil Indicator and Tube Identification


Object Number: 657409  Size: LF
(1)Engine Oil Level Indicator
(2)Second Design Engine Oil Level Indicator Tube
(3)First Design Engine Oil Level Indicator Tube
(4)Mounting Bracket with Single Reinforcement
(5)Mounting Bracket with Two Reinforcements
(6)Location of P/N on Engine Oil Level Indicator Blade

Engine Oil Level Indicators (1) can be identified by the P/N stamped on the blade (6).

Second design Engine Oil Level Indicator Tubes (2) can be identified as having two reinforcements in the mounting bracket (5).

First design Engine Oil Level Indicator Tubes (3) can be identified as having a single reinforcement in the mounting bracket (4).

Parts Information

When it is necessary to replace the Engine Oil Level Indicator or Tube, refer to the following part numbers:

Part Number

Description

12558684

First Design Engine Oil level Indicator

12558683

First Design Engine Oil level Indicator Tube

12570459

Second Design Engine Oil level Indicator

12563918

Second Design Engine Oil level Indicator Tube

Parts are currently available from GMSPO.