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Explorer, Sport Trac, Mountaineer & Aviator 1991-1994, 1995-2001, 2002-2005, 2006-2010 Ford Explorer

98 Explorer torque converter

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Old Dec 26, 2007 | 03:24 PM
  #1  
Keith Smith's Avatar
Keith Smith
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From: Mason, Ohio
98 Explorer torque converter

I was riding home with my son in his explorer and noticed that at 65 mph he was turning about 2250 rpms. I had him turn off the OD and turn it back on. It clearly jumped down to 3rd and back to OD. I didn't watch or listen close enough to notice if the torque converter locked up or not. (I just thought of it today at lunch) What is the avereage RPMs for 65 mph? I'm not sure what rear gear he has. It is a 98 Sport with the 4.0. I'm basing my curiosity off my F250 V10 which only turns about 1950 rpms at that same speed.
 
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Old Dec 27, 2007 | 07:50 AM
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That seems about right. I have a 97 4.0L XLT and at 2000 rpms in OD I'm about 58 mph. At 2500 rpms I'm pushing 70mph.
 
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Old Dec 27, 2007 | 11:51 AM
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From: Durant, OK (SOSU)
You outta get under the truck and check the gear ratio on the rear differential. That seems about right to me, though I've only had this truck a bit.

What are the gear ratios on the 5R55E anyways?
 
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Old Dec 27, 2007 | 02:06 PM
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From: down south
your door decal should tell you a code that you can then lookup online (or here) for what was installed at the factory.
 
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