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Sluggish acceleration at highway speeds

SCMark

Active Member
Joined
March 28, 2009
Messages
64
Reaction score
0
City, State
Anderson, SC
Year, Model & Trim Level
1997XLT
1997 XLT, 4.0 SOHC (20K miles after overhaul)
My symptoms are:
When driving at highway speeds push on the gas pedal to bump up the speed. Speed stays constant with no acceleration until the pedal is literally on the floor.
Once the gas pedal hits the floor the transmission kicks down and finally acceleration occurs.

Any ideas?
 




Flash

Explorer Addict
Joined
July 5, 2004
Messages
1,799
Reaction score
5
City, State
Brisbane Australia
Year, Model & Trim Level
1997 Limited
The throttle cable can stretch so that even with the pedal flat you don't get full throttle opening. Check out this video.

Other things to check are the air filter and fuel pressure and maybe the fuel filter.
 




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