Mechanics

WHAT WOULD CAUSE MY NOT GO OVER 40MPH WHEN I ACCELERATE?

2005 Ford Expedition • 101,000 miles

I was told by ford mechanic at dealership the catalytic converters were bad. So I removed both of them and still same problem.
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Terrys
May 5, 2012.




Does engine rev up ok in neutral/park?

Tiny
Fixitmr
May 5, 2012.
It only will rev 2.5 rpm then sputters
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Tiny
Terrys
May 6, 2012.
Is the o2 sensors working with the cats gone?

Roy

The sensors that are on converters are not connected but there is another as pipe begins on each side still connected

Tiny
Terrys
May 6, 2012.
With no o2 sensors, it will run bad

cats can be checked by measuring back pressure. You need to put it all together again, get it to someone who can perform this test and verify so expensive guessing goes away.

Roy


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