.what can cause this?

2005 FORD EXPEDITION
101,000 MILES
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TERRYS
  • MEMBER
  • 7 POSTS
my suv starts and stays running in park or nuetral.then in drive or reverse did not want to go.ford said cat converters were bad.so i removed them .now it will move but when it gets to 25mph it revs to 2.5 rpm then acts as if it is no longer in gear
May 5, 2012 at 2:51 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Do you have a check engine light?

You sure the transmission is not slipping? Check the MAF and TPS sensors
May 5, 2012 at 2:55 PM
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TERRYS
  • MEMBER
  • 7 POSTS
check engine light is on and i dont feel the trans slipping
May 5, 2012 at 6:35 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
when it revs to 2500, does the truck still move or gain speed??

Roy
May 5, 2012 at 8:45 PM
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TERRYS
  • MEMBER
  • 7 POSTS
it gets to 25 mph then revs to 4000 and motor sounds normal but it goes down 10 mph then comes back and starts again but wont get past 25 mph
May 5, 2012 at 9:23 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
you have transmission issue here as well.

Roy
May 5, 2012 at 9:24 PM
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