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  #1  
Old 12-02-2001, 11:58 AM
jliss1
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'97 e150 hesitation/stumbles between 45-55mph in overdrive

this problem is noticeable mainly in overdrive i would notice a slight hesitation while my foot is on the gas pedal between 45-55 mph. please help!!!
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  #2  
Old 01-30-2002, 03:15 PM
Parsons Parsons is offline
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'97 e150 hesitation/stumbles between 45-55mph in overdrive

Dear Sir,

My 1997 Ford F150 4x4 (77,800 miles) 4.6l does exactly what you described. I am interested in a solution. I have changed my transmission fluid twice. I believe it may be an electrical problem rather than mechanical. Other than this annoying problem, I am really pleased with this well-built vehicle.
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Old 02-04-2002, 05:38 PM
UncBob UncBob is offline
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'97 e150 hesitation/stumbles between 45-55mph in overdrive

Could be Torque Converetr
or
EGR problems

My 93 problem went away when they cleaned out the EGR passages on the INTAKE MANIFOLD side
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  #4  
Old 02-05-2002, 11:06 AM
daw1264 daw1264 is offline
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'97 e150 hesitation/stumbles between 45-55mph in overdrive

Rule out the EGR system if you aren't setting a service engine code light. The 97 is very picky on the EGR codes, any malfunction in the EGR system sets a P0401 code and the SEL comes on.
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Old 02-05-2002, 11:10 AM
cody cody is offline
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'97 e150 hesitation/stumbles between 45-55mph in overdrive

I have had the same problem and it was solved by replacing the torque converter. And, this seems to be a very common problem with this year of F150.

Hope this helps.

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Old 02-11-2002, 01:37 PM
Parsons Parsons is offline
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'97 e150 hesitation/stumbles between 45-55mph in overdrive

How difficult is it to replace the torque converter? May I ask what you paid for this service?


I have had the same problem and it was solved by replacing the torque converter. And, this seems to be a very common problem with this year of F150.

Hope this helps.
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  #7  
Old 02-20-2002, 03:58 PM
stan808 stan808 is offline
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'97 e150 hesitation/stumbles between 45-55mph in overdrive

Mine is a 99 5.4 and stumbles after about 3400 RPM. It reads 2 error codes, 401 & 402. Is this the same EGR problem??
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  #8  
Old 02-27-2002, 08:55 PM
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'97 e150 hesitation/stumbles between 45-55mph in overdrive

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Old 03-20-2002, 03:33 PM
Parsons Parsons is offline
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'97 e150 hesitation/stumbles between 45-55mph in overdrive

I finally found the reason for the hesitation problem on my 1997 Ford F150 Extended Cab 4x4 Lariat (79,500 miles). Bad spark plug wire, number two cylinder. I replaced the entire spark plug wire harness system. Truck runs great/smooth. I also had the injection system professionally cleaned/flushed.
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Old 03-21-2002, 08:53 AM
p_white p_white is offline
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Post '97 e150 hesitation/stumbles between 45-55mph in overdrive

My stumbling at that speed was caused by bad wires and one bad plug.
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Old 03-21-2002, 08:53 AM
 
 
 
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1997, 2000, 42l, 45, 55, 55mph, f150, f350, ford, hesitation, mark, mph, od, overdrive, ranger, stumbles

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