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

2005 Ford Expedition

Tiny

terrys

May, 5, 2012 AT 6:40 PM

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

FOUND 2975 RELATED QUESTIONS

5 Answers

Tiny

fixitmr

May, 5, 2012 AT 7:06 PM

Does engine rev up ok in neutral/park?

Tiny

terrys

May, 6, 2012 AT 1:39 AM

It only will rev 2.5 rpm then sputters

Tiny

ASEMaster6371

May, 6, 2012 AT 3:48 AM

Is the o2 sensors working with the cats gone?

Roy

Tiny

terrys

May, 6, 2012 AT 4:12 AM

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

Tiny

ASEMaster6371

May, 6, 2012 AT 4:20 AM

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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