Question about 2004 Ford Escape

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Escape will not go above 60mph and will not downshift w/gas pedal

2004 ford escape, 3.0Lv6 auto tranny. will not go above 60mph and will not downshift when depressing gas pedal to floor to kick in passing gear.engine is at approx 4000rpm. engine seems to run fine. truck seems to run normally at city driving speeds 0-45 mph. took truck to advance auto put on scanner and no codes show up. a friend of a friends mech, said it is either a cat converter prob or a torque converter prob. please help. thank you

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  • spacerider04 Mar 03, 2009

    chuck 943, your trouble shooting skills are outstanding, your test work as advertised. The press reading was off the scale at high rpm. cat converter was clogged. Thankyou very much for your expertise.......spacerider0415 out.



    Ronnieh49 , thankyou for your time and advice your were correct my cat converter was clogged........spacerider0415 out

  • jberent1 Apr 14, 2009

    My problem is the same but! Both cats have been replaced by ford less then 2,000 miles ago because they were leaking arond the flange. Could I have a bad one? DPFE is new. But I am going to do Vac. test @ DPFE today! Also doing Fuel Pressure Test....

  • Anonymous Mar 18, 2014

    the car see to lost speed when go up on hill not respond if put more gas or not or if drive on free way happing the same if need to pass other auto

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My 2002 escape had both manifold cats. replaced ..However the third cat was bad. I did the test at the DPFE port and psi went to 10 on throttle. Removed cat to retest and was fine, so I replaced cat and it runs great.

Thanks,

Posted on Apr 14, 2009

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It could very well be a restriction in the exhaust like a stopped up cat converter. I doubt if it is a torque converter,that may make it slow to get to speed but shouldn't effect hwy speeds.
You can check this vehicle for an exhaust restriction very easy by going to the DPFE sensor and measuring exhaust back pressure with a vacuum/pressure gage. It will be either silver or black in color will have 2 rubber hoses hooked to it going down to metal tubes that hook into the exhaust.It will have a 3 wire connector with the color of the wires being BN/WH,BN/LG,OG. Disconnect one of the rubber hoses from the sensor and hook the vacuum/pressure gage into the hose.You should have less than 1 psi at idle,then press accel to wide open throttle and take a reading,it should be no higher than 3-4 psi. Anything more is an exhaust restriction.

Posted on Mar 02, 2009

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It sounds like the catalytic converter is partially clogged my suburban did the same thing and i had i replace mine

Posted on Mar 02, 2009

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