5.4L missing at low speed
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Laughing Gas
Joined: Feb 2004
Posts: 1,200
Likes: 4
From: Ottawa, Ontario Canada
5.4L missing at low speed
2003 F150 5.4L, engine shudder/missing at very low speed.
I have a new Lariat, 5.4L with a strange anomaly. At 1 mph when approaching a stop,
the vehicle shakes as if it is not getting enough fuel. At a complete stop, it runs smoothly and after 2 mph, it is smooth again.
Very annoying when trying to parallel park, or inch into the garage!
Dealer says the computer says the mixture is fine and within spec.
Has anyone experienced this?
Comments appreciated.
I have a new Lariat, 5.4L with a strange anomaly. At 1 mph when approaching a stop,
the vehicle shakes as if it is not getting enough fuel. At a complete stop, it runs smoothly and after 2 mph, it is smooth again.
Very annoying when trying to parallel park, or inch into the garage!
Dealer says the computer says the mixture is fine and within spec.
Has anyone experienced this?
Comments appreciated.
Junior User
Joined: Dec 2003
Posts: 88
Likes: 0
I only have 1100 miles on my truck. Probably happened about 900 miles. As soon as I stepped on the gas, the rough idle went away. When I have the oil changed, I will have them check to see if it popped a code. Other than that, I love this truck.
Jim
Jim
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Laughing Gas
Joined: Feb 2004
Posts: 1,200
Likes: 4
From: Ottawa, Ontario Canada
thanks for the info. I am planning to have it looked at during first oil change in a few weeks. Tried a can of STP during a long Sunday drive, but problem still prevails.
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