EXHIBIT 99.1


news release                                           [TENNECO AUTOMOTIVE LOGO]




For Immediate Release


Contacts:       Jane Ostrander
                Media Relations
                847 482-5607
                jane.ostrander@tenneco-automotive.com

                Leslie Hunziker
                Investor Relations
                847 482-5042
                leslie.hunziker@tenneco-automotive.com


                  TENNECO AUTOMOTIVE ANNOUNCES DEPARTURE OF CFO

Lake Forest, Illinois, July 29, 2003 -- Tenneco Automotive (NYSE: TEN) announced
today that Mark McCollum, senior vice president and chief financial officer, is
leaving the company for an opportunity outside the automotive industry. Kenneth
Trammell, the company's vice president, controller and principal accounting
officer, has been named interim chief financial officer.

Mr. McCollum has accepted the position of senior vice president and chief
accounting officer with Halliburton, a $13 billion supplier to the petroleum and
energy industries, headquartered in Houston, Texas. Mr. McCollum's resignation
is effective August 15, 2003, by which time the company will have completed and
filed its Form 10-Q for the second quarter. The company has initiated a process
to select a successor to Mr. McCollum, which will consider both internal and
external candidates.

"Mark McCollum has played an integral role in helping set the strategic
direction for Tenneco Automotive since it became a stand-alone entity nearly
four years ago," said Mark P. Frissora, chairman and CEO, Tenneco Automotive.



                                     -More-






"He has helped strengthen Tenneco Automotive's relationships with its lenders,
the rating agencies and financial analysts. He also established a highly
effective and disciplined corporate finance organization worldwide. I know that
the entire Tenneco Automotive team joins me in sincerely thanking Mark for his
contributions and wishing him much success with Halliburton in his native
Texas."

Mr. Trammell joined Tenneco Inc. in 1996 as assistant controller and was
promoted to the position of corporate controller the following year. Since
joining Tenneco, he has been responsible for accounting, planning and analysis,
financial reporting and audit coordination. When Tenneco Automotive became a
stand-alone entity in November 1999, Mr. Trammell was named vice president and
controller. Externally, Mr. Trammell is a member of Financial Executives
International's Committee on Corporate Reporting, a group of Fortune 500
controllers that, among other things, monitors, reviews and establishes
positions on financial accounting pronouncements.

Tenneco Automotive is a $3.5 billion manufacturing company with headquarters in
Lake Forest, Illinois and approximately 19,600 employees worldwide. Tenneco
Automotive is one of the world's largest producers and marketers of ride control
and exhaust systems and products, which are sold under the Monroe(R) and
Walker(R) global 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 and DynoMax(R) performance exhaust products, and Monroe(R) Clevite(R)
vibration control components.

                                       ###