chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

All Technical Service Bulletins: > < P/S - Shudder/Vibration During Low Speed Turns
Page 1
background image

Valve Guide Seal: Customer Interest
Exhaust - Blue Smoke/Poor Oil Economy

Number:

89-163-6A

Section:

6A

Date:

May, 1989

Subject:

EXHAUST PIPE SMOKE

Model and Year:

1989 A CAR WITH 2.8L (VIN CODE W) ENGINE

TO:

ALL CHEVROLET DEALERS

Some customers driving a 1989 A car with a 2.8L engine (VIN Code W) may comment concerning poor oil economy and/or bluish colored smoke
coming from the tailpipe.

The cause of these comments may be the valve stem seals. To repair these conditions, complete the following:

1.

Check the engine serial number on the rectangular machined pad located on the left side of the engine.

If the engine serial number begins with an "A" and is between 90810 and 90922, then replace all valve stem seals with new seals. The new seals
may be obtained from GMSPO.

Seal Description                       

Service Part Number

Inlet Valve Stem

14091807

Exhaust Valve Stem

10070125

2.

Perform diagnostic checks as indicated in Section 6 of the Service Manual.

Labor Operation Number:

J0547

Labor Time:

1.8 Hour

Add:

1.3 Hour To Replace All Springs, caps/seals Both Banks

All Technical Service Bulletins: > < P/S - Shudder/Vibration During Low Speed Turns