Tenneco Automotive First Quarter 2005 Earnings News Release and Conference Call Notice

LAKE FOREST, Ill., March 31 -- Tenneco Automotive plans to issue its first quarter 2005 earnings news release before the market opens on Thursday, April 21, 2005 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 Thursday, April 21,
                        2005.  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:      Thursday, April 21, 2005
                        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:        888-395-1810 (domestic)
                        (1) 210-234-8003 (international)

  Pass Code:            TENNECO AUTO

  Conference            Leslie Hunziker
  Leader:

  Call Playback:        Available one hour following completion of the call
                        on Thursday, April 21, 2005 through May 21, 2005.
                        Call 866-395-9178 (domestic) or 203-369-0502
                        (international).

  Website Broadcast:    http://www.tenneco-automotive.com/
   For a "listen only" broadcast, go to the company's
   website and select the "live web cast" link.
   Please go to the website 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 through May 21, 2005.

Tenneco Automotive is a $4.2 billion manufacturing company with headquarters in Lake Forest, Illinois and approximately 18,400 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(R), Walker(R), Gillet(R) and Clevite(R)Elastomer brand names. Among its products are Sensa-Trac(R) and Monroe Reflex(R) shocks and struts, Rancho(R) shock absorbers, Walker(R) Quiet-Flow(R) mufflers, Dynomax(R) performance exhaust products, and Clevite(R)Elastomer noise, vibration and harshness control components.