1999 Ford Ranger surges

1999 FORD RANGER
120,000 MILES • 6 CYL • 4WD • AUTOMATIC
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MXGGIE
  • MEMBER
  • 1 POST
Recently, if I'm driving at a steady speed (say 50mph) & I have to slow down for some reason, when I accelerate, my truck surges until I give it enough gas to make it stop surging. It also makes a "rattling" type noise. It seems to do it more when I'm going up a hill (even a small gradual incline). This just started about 2 weeks ago at the most. We changed the oil & filter, the fuel filter, and air filter (which had a mouse nest in it), to no avail!! My husband & brother replaced either the entire muffler & part of the exhaust pipe ( or maybe just a section of pipe) a month or so ago. It also seems to lose speed up a hill even tho' I try to keep a steady push on the gas peddle. Any ideas - what next?
Thank you!
Oct 27, 2008 at 5:12 PM
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BMRFIXIT
  • ASE Certified Mechanic
  • 19,053 POSTS
  • ASE Certified Mechanic
Check it for tune up (plugs wires ……)
use a better gas or switch gas brand or octane level
check timing and engine mechanical

need manual CHECK IT @
https://www.2carpros.com/kpages/auto_repair_manuals.htm
Oct 28, 2008 at 6:38 AM
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