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My Explorer will only go 20 mph

Tiny
J66
  • MEMBER
  • 2002 FORD FIVE HUNDRED
  • 17,947 MILES
My explorer will only go 20 mph. It will not go any faster. But, if it eventually does; the car sounds forced. Does not make smooth gear shift changes. I got the transmission rebuilt 18 months ago. Why could this be occuring?
Saturday, November 19th, 2011 AT 4:23 AM

1 Reply

Tiny
DRCRANKNWRENCH
  • MECHANIC
  • 3,380 POSTS
Check the intake passage for blockage and make sure someone has not shoved something in the exhaust. Then I reccomend having the trouble codes pulled. Advance Auto and Auto Zone parts sotres do this for free. Come back to us with those codes an we can go from there.
If no codes come up, you should test the fuel pressure, Both the parts sotres I mentioned have fuel pressure test gauges on a loaner program and they come with adapters to fit most cars. The test port is on the fuel rail and the parts person can give you the specification.
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Saturday, November 19th, 2011 AT 4:31 AM

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