1993 Ford E Series Van E 350 Start Good After 30 Min Hour Idler Want Come Down

182,056 MILES
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FOGUIE MCKINNIE
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  • 51 POSTS
i have a e -350 van it start good but after 30 min to a hour it Idler up and want come down it also jeck while driving other then that it run good
Jan 6, 2013 at 6:41 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
sounds like the idle air control motor is acting up. that may be the idle fluctuation.

as far as the jerking, how old are the plugs???? make sure there is no coolant in the tubes for the plugs as it indicates a bad intake manifold.

i am assuming a 4.6 v8 since you provided no engine size

Roy
Jan 6, 2013 at 6:58 AM
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FOGUIE MCKINNIE
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  • 51 POSTS
it have 5.8 engine
Jan 6, 2013 at 3:22 PM
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