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bigmike16
New User
Aug 10, 2012, 12:37 PM
Post #1 of 2
(1282 views)
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stumble at 50 mph
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i have 2001 f150 with 5.4 with 205,000 miles. i have had it tuned 30,000 miles ago. It started to stumble on light accel about 45-50. The stumble feel like a miss. hard to moderate accel just fine, no miss at idle.There r no ck eng lights or codes. I have also had a egr tube repaired at time of tune up, mech noticed a hole burnt threw tube. Now the last day or so at startup in morning the thing requires a little accel to keep idle. After that runs like champ accept that stumble. plz help thnks
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Discretesignals
Ultimate Carjunky
/ Moderator
Aug 10, 2012, 1:02 PM
Post #2 of 2
(1253 views)
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Re: stumble at 50 mph
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Remove the vacuum hose from the EGR valve and plug off the end of the hose. Drive the vehicle and see if your stumble goes away.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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