Question about 1998 Ford Expedition

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My expedition hessitate or feels like the tranny is not engaging between 40-60 mph. This only happen when the vehicle is warm and when you are trying to speed up. I'm thinking its the tranny going bad but it is a 99 and it is not worth changing out the tranny. Is this a common problem with the 99 expedition? Please help.

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  • 214 Answers

Sound like the converter is not locking up when it is supposed to. The converter is locked by the computer under full throttle and allowed to spin somewhat freely when not under a load. if you have the electronically controlled overdrive the unit should come out of overdrive to let the car accelerate. Most problems now days are in the computer controls of the transmission.

Posted on Oct 16, 2013

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Posted on Jan 02, 2017

SOURCE: 2003 ford mustang

HI, i have the samme problemeon my mustang gt 2006
idid hevriting ,plug chek wires , and the probleme was the valve was sticking on the guide ,we change the head , and now it is very jood, good luck
it was misfiring whit no code

Posted on Sep 07, 2008

  • 6 Answers

SOURCE: 1999 FORD EXPEDITION VEHICLE SPEED SENSOR

It should be on the back of the transmission near where the driveshaft goes in. Buy a new one, jack up your truck and look for the old one on the back of the transmission

Posted on Apr 03, 2009

RixsFixes
  • 2200 Answers

SOURCE: Vehicle won't go over 25 mph. help!!

Hi

If you have engine management lights showing on your dash your car has gone into limp (or safety mode) and this explains your problem. In limp mode the engine is locked down as a safety measure to get you home and will not operate normally.

If this is the case the car will have to go to be scanned for error codes to identify the exact cause of the fault causing the limp mode condition.

Hope this helps. Please remember to rate my answer. Thanks.

Posted on Jul 14, 2009

alicantecoli
  • 22114 Answers

SOURCE: My 2002 Ford Ranger Edge V-6 is misfiring.

havent a clue here ,one cylinder now another missing ,only one thing comes to mind here and thats the coil pack ,check the voltage across the battery with engine running at 1500rpm and if its higher than 15.5 volts of their abouts then the alternator regulator is playing up and this would cause problems with the coil pack or the ECU ,also the radio could blow and lots of bulbs.Other that this i would need to get my greasy hands on it and give the magic hammer treatment

Posted on Jan 02, 2010

  • 1779 Answers

SOURCE: no heat in 99 ford windstar

Check the coolant level. If it's low, what you describe will happen. There is not sufficient coolant to flow through the heater core at idle. At 60mph the water pump is spinning quickly, managing to get some coolant through the heater core, so you get heat until the rpm's drop at idle. If it is due to low level, keep an eye on it to see if it drops again, as you may have a leak.

Posted on Jan 06, 2010

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