Lunges when started
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Lunges when started
I have an 04 250SD with the 5.4 and auto tranny. Sometimes the truck lunges forward when i first start it, just as soon as the engine starts up it goes forward a good 2-3 inches. Doesn't happen all the time but when it does you canexpect to grab onto the wheel. Is this normal?
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Joined: Sep 2005
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From: Monroe Michigan
Originally Posted by xtech
I have an 04 250SD with the 5.4 and auto tranny. Sometimes the truck lunges forward when i first start it, just as soon as the engine starts up it goes forward a good 2-3 inches. Doesn't happen all the time but when it does you canexpect to grab onto the wheel. Is this normal?
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Fleet Mechanic
Joined: Nov 2001
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From: Corpus Christi, TX
Wtf? Are you guys serious?? The truck is actually moves when you turn it over?
Wow...thats the first I've ever heard of it. Any info on why it happens?
Wow...thats the first I've ever heard of it. Any info on why it happens?
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From: Long Island USA
YES Munkey!
It's been discussed on this site very many times over the past 4 years.
My '01 does it almost every time I start it. It not only torques the entire vehicle over to the right, it lunges forward when started.
It's the automatic. There's enough friction (and cold/thick oil) between the moving parts that on initial startup the output shaft tries to spin for a split second.
It's been discussed on this site very many times over the past 4 years.
My '01 does it almost every time I start it. It not only torques the entire vehicle over to the right, it lunges forward when started.
It's the automatic. There's enough friction (and cold/thick oil) between the moving parts that on initial startup the output shaft tries to spin for a split second.
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