Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
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I will do my best to assist you. When you are finished please click on accept only if you are satisfied. I don't get paid unless you do.Please do not accept if you cannot leave positive feedback. I don't know if you are a tech or a just working on your own vehicle so we may have to fine tune the answer. I only know as much about your problem as you have told me in your post, so my answers will be based on what you tell me so please add all the details you can.
The service bulletin is for the left or drivers valve cover. It is a common issue and yes it works well. Did they give you a copy of the bulletin? If not would you like one?
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This PI was superseded to remove reference to PIP4574 right below the model list and refer to 10-06-01-008 instead. This was changed due to the recent release of 10-06-01-008, which has taken the place of PIP4574. Please discard PIP4492P.
Notice: Engine RPOs LS3, LS7, LS9, and LSA are excluded from this because they have the PCV baffle built into the intake valley cover, rather than the valve cover so excessive lifter flow does not affect them in the same manner.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
On rare occasions, some customers may complain of excessive oil consumption and/or blue exhaust smoke. Upon inspection, obvious oil will be found in the intake manifold and/or PCV vacuum tube if this PI applies.
This may be the result of:
A PCV fresh air hose that is pinched or restricted by plastic casting flash (this would normally be a concern since new, or shortly after engine repairs).
Plugged PCV baffle drain holes in the valve cover that has the PCV vacuum pipe attached to it (this would normally be a concern at high mileage).
An improperly sealed PCV valve cover baffle (this would normally be a concern since new, or shortly after valve cover replacement).
Over-aggressive valve lifters (generally occur at low mileage - less than 10,000 miles or so).
If bulletin 01-06-01-011 identifies excessive oil consumption but SI diagnosis does not isolate the cause of it, inspect the PCV vacuum pipe to see if obvious oil drips out of it and look through the throttle body opening to see if there is obvious standing oil in the bottom of the intake manifold (normally a 1/4 quart or more if this PI applies). If there is obvious oil in the PCV vacuum pipe or in the bottom of the intake, perform the steps below and re-evaluate the oil consumption concern:
Important: If this step leads to valve cover replacement, perform step 3 on the replacement valve cover before installing it.
Important: If this step leads to valve cover replacement, perform this step on the replacement valve cover before installing it.
Important: Drain/clean the oil out of the intake manifold and install the intake with new intake gaskets before releasing the vehicle to the customer. If this is not performed, the customer may return with an exhaust smoke complaint even though their oil consumption complaint may be repaired.
Important: Make sure that the replacement lifters do not have any sign of debris in the plunger area as shown in the bottom-center lifter below. If there is debris present, remove it with some light shop air. Do not stick anything in the plunger area to remove it such as a screwdriver.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
The low oil light comes on long before damage can be done.
Plugs may nee dto be changed a bit sooner than if this did not happen, but not my much.
I think there is no reason to sell it. I have seen only 2 of the new engines fail. One was nearly new so a casting flaw and the other the owner abused it.
Keep it and enjoy it.