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vette5148 · 02-01-2022, 08:07 PM

My 96 Dually with a 454 4l80e did the same thing but it also shifted harder then normal and it was the TPS going bad. It gave false readings to the ecm and raised the line pressure.

02-01-2022, 08:07 PM	#5
vette5148 Junior Member Join Date: Jan 2022 Posts: 28 Likes: 65 Liked 43 Times in 14 Posts	Re: Transmission problems My 96 Dually with a 454 4l80e did the same thing but it also shifted harder then normal and it was the TPS going bad. It gave false readings to the ecm and raised the line pressure.