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oldjoe
Novice
Jul 13, 2021, 2:22 PM
Post #1 of 9
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transmission question
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I have a 2004 F-150 Heritage. The transmission went out so I purchased a used one online. After installing it I am getting a speed sensor error. So I replaced it rebooted the computer checked the wiring. But now I drive it shifts fine up to 60 MPH. but after 100 yards it drops into first gear.
When I took out the old transmission a long rubber tube connected to a steel tube and back to rubber fell out of engine area. So was unable to figure out what and where that tube goes and what it does?
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gsferraro
Veteran
Jul 16, 2021, 5:56 PM
Post #2 of 9
(2371 views)
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Re: transmission question
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Hello,
Are you talking about a cooler line, they are usually metal and rubber. So if it drops back down to first, what code are you getting? P0720?
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oldjoe
Novice
Jul 18, 2021, 3:36 AM
Post #3 of 9
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Re: transmission question
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Np this line is on top the transmission
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jul 18, 2021, 3:42 AM
Post #4 of 9
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Re: transmission question
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That's not what was asked? Is it getting that code - this guy is the site's transmission expert with limited time here so fix your response or a new one with code, T
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gsferraro
Veteran
Jul 18, 2021, 12:36 PM
Post #5 of 9
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Re: transmission question
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Hello,
Could be a vent tube also. Gary
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oldjoe
Novice
Jul 18, 2021, 1:51 PM
Post #6 of 9
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Re: transmission question
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Everything i find it says its a vent tube. But what puzzles me such and expensive rubber to steel part for just a vent tube!
Error code is PO780 Says speed sensor but I have tried 2 other ones and no change
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oldjoe
Novice
Jul 19, 2021, 7:50 AM
Post #7 of 9
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Re: transmission question
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Oops my bad it is PO720 speed sensor.
Is there a speed sensor inside the transmission itself. There are a lot of wires in that harness
(This post was edited by oldjoe on Jul 19, 2021, 7:53 AM)
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 19, 2021, 10:32 AM
Post #8 of 9
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Re: transmission question
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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gsferraro
Veteran
Jul 20, 2021, 4:55 PM
Post #9 of 9
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Re: transmission question
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Hello,
That picture is correct. Gary
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