Tenneco Automotive Inc. (ticker: TEN, exchange: New York Stock Exchange) News Release

April 5, 2004


LAKE FOREST, ILLINOIS, APRIL 5, 2004 - Tenneco Automotive (NYSE:TEN) plans to issue its first quarter 2004 earnings news release before the market opens on Tuesday, April 20, 2004, and hold a conference call the same day at 10:30 a.m. EDT. The purpose of the call is to discuss the company's results of operations for the last fiscal quarter, as well as other matters that may impact the company's outlook.

News Release: Before the market opens on Tuesday, April 20, 2004. The news release will be sent by email and fax to the Tenneco Automotive investor distribution list and will be available on First Call, PRNewswire and the Tenneco Automotive web site.
Conference Call: Tuesday, April 20, 2004  The conference call will be hosted by Mark Frissora, chairman and CEO and Ken Trammell, senior vice president and chief financial officer.
Time: 10:30 a.m. Eastern time 9:30 a.m. Central time
Phone Numbers: 888 730-9138 (domestic)
630 395-0019 (international)
Pass Code: Tenneco Auto
Conference Leader: Leslie Hunziker
Call Playback: Available one hour following completion of the call on Tuesday, April 20, 2004 through 5:00 p.m. CDT, April 27, 2004.
Call 888 568-0399 (domestic) or 402 530-7938 (international).
Web Site Broadcast: www.tenneco-automotive.com
For a "listen only" broadcast, go to the company's web site and select the "live web cast" link. Please go to the web site at least 15 minutes prior to the start of the call to register and download and install any necessary audio software. A replay of this call will also be available on the Tenneco Automotive web site.

Tenneco Automotive is a $3.8 billion manufacturing company with headquarters in Lake Forest, Illinois and approximately 19,200 employees worldwide. Tenneco Automotive is one of the world's largest designers, manufacturers and marketers of emission control and ride control products and systems for the automotive original equipment market and the aftermarket. Tenneco Automotive markets its products principally under the Monroe®, Walker®, Gillet® and Clevite® Elastomer brand names. Among its products are Sensa-Trac® and Monroe Reflex® shocks and struts, Rancho® shock absorbers, Walker® Quiet-Flow® mufflers, Dynomax® performance exhaust products, and Clevite® Elastomer noise, vibration and harshness control components.

Tenneco Automotive, Media Relations
Jane Ostrander
(1) 847 482 5607

Tenneco Automotive, Investor Relations
Leslie Hunziker,