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1991 Ford Ranger Surging

Tiny
DARLAHAND
  • MEMBER
  • 1991 FORD RANGER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 36,672 MILES
Truck runs great for the most part but when going an even speed, it surges and jerks, almost like it's not getting enough gas. Starting is not a problem, fuel injectors have been cleaned out, all spark plugs have been changed and adjusted to correct specs. Timing is fine. We just can't figure out why it's running this way and using more gas than it should.
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Thursday, September 30th, 2010 AT 9:53 AM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Try cleaning the MAF sensor with an electronic cleaner nd test the throttle position sensor-
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Thursday, September 30th, 2010 AT 10:00 AM
Tiny
DARLAHAND
  • MEMBER
  • 2 POSTS
Tested engine with OBD 1 and all was ok. How do you test the throttle position switch?
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Thursday, September 30th, 2010 AT 1:44 PM

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