Acceleration issue!

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Oct 11, 2012 | 12:16 PM

MuddyWaters

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Joined: Aug 2010

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Acceleration issue!

It is not winter. Its early fall in West Texas but my 2001, 7.3 Diesel Expedition has an acceleration problem just after start up. If I run it down the road while the engine is warming up, I notice a serious lull when I step on the gas. This has only started recently and it only happens while the engine is warming up. Once I get down the road a bit and that needle climbs to inside the nominal range indicator then it goes away. However, this has never happened before. I went up a small hill this morning and had the pedal to the floor and was crawling up the road. Again, I expect this in the winter but the mornings here have been in the mid 60' at the coolest. What could this be?:

Oct 11, 2012 | 12:53 PM

Stewart_H

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Joined: May 2004

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From: Central Coast of CA

Quote:

Originally Posted by MuddyWaters

It is not winter. Its early fall in West Texas but my 2001, 7.3 Diesel Expedition has an acceleration problem just after start up.

I'm sure you meant Excursion, but lemme ask you this first, what mods have been done to your rig?

Also, how long ago did you do maintenance on it (oil change, fuel filter change, trans service, etc) and what exactly did you do?

Stewart