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Old 12-23-2009, 06:13 PM
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6.0 Hesitation/stumble

Need some help, I have a 6.0, 154,000 miles, SCT programmer with Aggressive street tune. 4 inch turbo back exhaust, drop in performance air filter.. My problem is i have a bad stumble/hesitation at 1/4 throttle. can be at any speed. If I give it more throttle it clears right up and hauls ***.. Its real bad when im cruising on the free way at 1/4 throttle.
Any help appreciated..

Patrick
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Old 01-06-2010, 06:21 PM
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Anybody got idea's
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Old 01-07-2010, 02:48 PM
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Same problem here. Got call from ford garage today said it was ready they said my egr valve was sticking put a new one in. If you floor it will yours clear up?
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Old 01-08-2010, 07:11 PM
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Quote:
Originally Posted by crodgers View Post
Same problem here. Got call from ford garage today said it was ready they said my egr valve was sticking put a new one in. If you floor it will yours clear up?
Yes it does......
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Old 01-08-2010, 07:15 PM
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try unpluging egr
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Old 01-09-2010, 05:04 PM
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mine did this and it was egr valve. I tried to clean it but didnt work. I forgot the site but you can get them for 180 i beleive on the internet compared to like 310 I think ford and thats about the same at local parts store to. It did this again and it was an injector. It did this for about two months before it finally gave out and threw a code.
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Old 01-09-2010, 05:05 PM
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I am sure you have done this already bout how old are your fuel filters?
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Old 01-09-2010, 05:29 PM
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Sounds like a bad ICP sensor and pigtail. The harness gets oil soaked and read erratically. The sensor may be leaking oil onto the harness.
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Old 01-10-2010, 01:30 PM
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I unplugged my egr and it cured the problem mine was so bad it would lose mph and looked as if someone built a fire in the exhaust.
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Old 02-10-2010, 06:20 PM
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Thanks for the replys guys but no luck. Im running the EGR un pluged and have a new ICP and harness and still no luck. hesitates hard under 1500 rpm.
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