5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Mustang hesitation

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Old 05-17-2007, 01:08 PM
  #11  
mike.0621
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Default RE: Mustang hesitation

well, i have given up on this hesitation issue, i have parked the car for the next year or so while i rebuild the whole thing from the engine to the interior!!!! if anyone has any parts for sale (mainly engine parts) please email me at mike.0621@hotmail.com
Thanks everyone for trying to help me figure this out!!!
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Old 05-17-2007, 01:11 PM
  #12  
hatchdemon89
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Default RE: Mustang hesitation

check fuel pressure might be a fouled spark plug.do process of elimination spark,air fuel i would check fuel pressure change fuel filter check spark plugs timin ect...
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Old 05-17-2007, 01:13 PM
  #13  
hatchdemon89
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Default RE: Mustang hesitation

I changed my fuel pump do a 255 an it still hesitated a lil bit then put on a fuel pressure regulator bumped the fuel up a little solved my problem
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Old 05-17-2007, 01:35 PM
  #14  
mike.0621
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Default RE: Mustang hesitation

i will have t try that, do you think that it may be caused by bad vacuum lines as well??
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Old 05-17-2007, 01:37 PM
  #15  
hatchdemon89
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Default RE: Mustang hesitation

POSSIBLE SPRAY SOME **** ON them sorrie for the caps spray stuff on em an look an listen for bubbles an sizzling sounds like a fuel problem to me or try this go to auto zone get some seafoam pour it into your brake booster an try that might work also its like 8 bucks for a bottle
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Old 05-17-2007, 01:51 PM
  #16  
mike.0621
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Default RE: Mustang hesitation

i'll give that a shot, Thanks for the help!!!
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Old 05-17-2007, 02:08 PM
  #17  
hatchdemon89
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Default RE: Mustang hesitation

no problem let me know whats up an ill help ya out as best as i can
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Old 05-20-2007, 03:07 AM
  #18  
billyam87
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Default RE: Mustang hesitation

Have you messed around with your wires or distributor lately, when i put headers on my car, one of the wires wasnt down all the way on my cap. check if something got hit in that area or if the wire is loose on the plug. One more thing, if you take the spout connector off your distributor and run the car, does it have the same problem?
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Old 05-22-2007, 12:41 PM
  #19  
mike.0621
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Default RE: Mustang hesitation

i never tried running it with the spout connector off, i will give that a shot
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