2005 Ford F-150 erratic transmission problems.

2005 FORD F-150
143,000 MILES • 5.4L • V8 • 2WD • AUTOMATIC
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LOUIES1
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When the truck is cold it seems to shift fine, after it starts to warm up it shift erratically. It seems to be worse when you come to a light and set there a little while. When you take off the engine revs for a second and it jerks into gear and goes. The trans fluid seems to be full and I have never added any in the four years I have owned the truck. This all started a couple days ago when I got gas and didn't have this problem before this. I changed the fuel filter and didn't seem to help. I have no DTC Trouble codes set in the truck. I have checked it twice.
Nov 26, 2015 at 12:20 PM
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HMAC300
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check fuel pressure with a gauge and check for vacuum leaks. auto parts rent gauge
Nov 27, 2015 at 7:46 AM