1995 GMC Jimmy terrible gas mileage and bogs out on highway

1995 GMC JIMMY
275,000 MILES • 6 CYL • 4WD • AUTOMATIC
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MCPEQUINOX
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recently added muffler and tailpipe (broken off for about a year) as well as replaced fuel pump, but not filter. The vehicle reeks of gas when running and has horrible performance. Once in a while it does regain power for an hour or so. Getting about 150 km to a tank of gas.
Mar 15, 2010 at 7:01 PM
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SERVICE WRITER
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Fuel pump and fuel filter are like p-nut butter and jelly...replace it.

What is the fuel pressure now at?

https://www.2carpros.com/forum/gas-mileage-tips-vt135422.html
Mar 15, 2010 at 7:34 PM
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