hesitation....sometimes?
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Senior User
Joined: Jul 2013
Posts: 130
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From: northern ky
hesitation....sometimes?
Good day all,
For Christmas it looks like im getting engine repair work done,
Here is this wonderful 5.4 's issue now,
sometimes it will idle rough, sometimes it wont. sometimes it feels like it wants to stall, other times not. if im driving about 30mph up a hill around 1700 rpm, the engine feels like a bucking horse, it will kinda want to produce the power, but cant seem to find it till the trans drops to a lower gear. With this engine power loss is unacceptable because it came out of the factory with no power, i cant afford to loose more.
there is no check engine light. its been doing this on and off for a week. i dont drive it much, may 15 miles a day. i thought maybe it was bad gas , i had it sitting for a month, but since then ran almost 2 tanks of gas through it. Seems to act the worst when driving it, then letting it idle for 5 mins, then drive it again, that's when its very noticeable. no smoke from exhaust, no mixing of oil and anti freeze, plugs are a year old, filter is new.
opinions ? thanks guys
For Christmas it looks like im getting engine repair work done,
Here is this wonderful 5.4 's issue now,
sometimes it will idle rough, sometimes it wont. sometimes it feels like it wants to stall, other times not. if im driving about 30mph up a hill around 1700 rpm, the engine feels like a bucking horse, it will kinda want to produce the power, but cant seem to find it till the trans drops to a lower gear. With this engine power loss is unacceptable because it came out of the factory with no power, i cant afford to loose more.
there is no check engine light. its been doing this on and off for a week. i dont drive it much, may 15 miles a day. i thought maybe it was bad gas , i had it sitting for a month, but since then ran almost 2 tanks of gas through it. Seems to act the worst when driving it, then letting it idle for 5 mins, then drive it again, that's when its very noticeable. no smoke from exhaust, no mixing of oil and anti freeze, plugs are a year old, filter is new.
opinions ? thanks guys
Posting Guru
Joined: May 2010
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From: Midland, MI
check this thread out.... another 5.4 guy having the same issue
https://www.ford-trucks.com/forums/1...nder-load.html
https://www.ford-trucks.com/forums/1...nder-load.html
FTE Leadership Emeritus
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From: Stephensville WI
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Lead Driver
Joined: Mar 2013
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From: Kent Station, WA
Do as redford said. Personally I would try some seafoam through the brake booster line.
I would also clean the MAF sensor with MAF spray.
How is your battery and alternator?
I would also clean the MAF sensor with MAF spray.
How is your battery and alternator?
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