tune up

2006 FORD RANGER
42,000 MILES • 4.0L • V6 • 4WD • AUTOMATIC
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WILLIAM SLAGLE
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  • 12 POSTS
What is the best way to change the spark plugs on this pickup? what would cause an intermittent stumble or hesitation that happens after driving several hours at between 1200 and 2000 rpm then run fine for several hours again then have the same problem ? any help would help.
Nov 10, 2017 at 9:52 PM
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STEVE W.
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  • 15,113 POSTS
A cycle like that would not be the spark plugs. The bad running would be constant as the plugs would not repair themselves. It sounds more like a fuel system issue. When does it start to run worse? As the fuel tank gets low or right after filling it? Does it run fine and then you stop and it acts up after you stop?
Nov 11, 2017 at 6:36 AM