2005-2009 Mustang Information on The S197 {Gen1}

Strange trip computer behavior

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Old 1/27/05, 08:35 PM
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I am just starting to notice a trend, and I wanted to see if anyone else had noticed it also.

After I fill up with gas, I usually reset the trip odometer and the MPG tracker. The trip computer will track these fine until I shut off the car. When I restart it the first time after the reset, the trip odometer will be reset to zero and the MPG tracker will restart. After this, the trip odometer will work as expected. I have had this occur after my last 4 fill ups.

I plan on checking if this occurs after I reset only one or the other tracker.
Old 1/27/05, 09:07 PM
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Do you shut off the car while filling up, I seem to remember something
in the manual about having to turn the switch to off for the car to reconize
the fill up?
Old 1/27/05, 09:18 PM
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Originally posted by CP94GT@January 27, 2005, 10:10 PM
Do you shut off the car while filling up, I seem to remember something
in the manual about having to turn the switch to off for the car to reconize
the fill up?

i also remember that, car must be off completely during fill ups for it to track ur gallons filled.
Old 1/27/05, 09:22 PM
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Who doesn't shut their car off during fill ups? Isn't it a bit dangerous to leave the vehicle running while filling up?
Old 1/27/05, 09:29 PM
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Originally posted by holderca1@January 27, 2005, 10:25 PM
Who doesn't shut their car off during fill ups? Isn't it a bit dangerous to leave the vehicle running while filling up?

you'd be surprised. just keep an eye out while filling up, you'll see it. alot of stations i regularly go to now yell at people over the intercom if their car is running or if they are on their cell phone.
Old 1/27/05, 09:37 PM
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You know now that I think about it I think mine does the same thing. I kept looking at my trip thing and going BULLpoo i know ive gone more then 12 miles, but figured I was probably just wrong.. maybe that's it!
Old 1/27/05, 09:37 PM
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Mine does it sometimes too...though I don't think it did it on the last 2 fillups.
Old 1/27/05, 09:49 PM
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Strange, I've always reset the trip, average MPG and average MPH after filling up, and have yet to see this one.
Old 1/28/05, 06:03 AM
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Originally posted by CP94GT@January 27, 2005, 11:10 PM
Do you shut off the car while filling up, I seem to remember something
in the manual about having to turn the switch to off for the car to reconize
the fill up?
I always shut the car off and remove the key while filling up, so that's not it. I don't want someone stealing my new baby the easy way!

Jeffs05GT - that was exactly why I noticed it. I filled up and reset the odometer, then immediately drove to a friend's house about 20 miles away. When I got back in the car, the trip odometer showed zero. My first thought was that the battery or electrical system had glitched, but the radio presets were still there. After a few fillups, I noticed that it only happens on the first ignition cycle after the reset.
Old 1/28/05, 06:09 AM
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Originally posted by Texas Flood+January 28, 2005, 7:06 AM--><div class='quotetop'>QUOTE(Texas Flood @ January 28, 2005, 7:06 AM)</div><div class='quotemain'><!--QuoteBegin-CP94GT@January 27, 2005, 11:10 PM
Do you shut off the car while filling up, I seem to remember something
in the manual about having to turn the switch to off for the car to reconize
the fill up?
I always shut the car off and remove the key while filling up, so that's not it. I don't want someone stealing my new baby the easy way!

Jeffs05GT - that was exactly why I noticed it. I filled up and reset the odometer, then immediately drove to a friend's house about 20 miles away. When I got back in the car, the trip odometer showed zero. My first thought was that the battery or electrical system had glitched, but the radio presets were still there. After a few fillups, I noticed that it only happens on the first ignition cycle after the reset.
[/b][/quote]

Looks like everyone with the issue should report it to their dealer so Ford can start working on a resolution.
Old 1/28/05, 06:25 AM
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I haven't noticed any problems
Old 1/28/05, 07:17 AM
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SOunds like a minor glitch in the computer - I haven't had this problem at all. Get your dealer to check it out.
Old 1/28/05, 07:33 AM
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Originally posted by holderca1@January 27, 2005, 10:25 PM
Who doesn't shut their car off during fill ups? Isn't it a bit dangerous to leave the vehicle running while filling up?

I haven't noticed this problem.

But, yes you would be surprised to see how many people leave their car running while filling up. I even saw one guy smoking a cigar while filling up. I shouted over to him that it is a little dangerous to smoke while filling up. He got made at me and kept smoking. So I told the attendent. She ran out to him like a bat out of heck. He got even more POed at me and put it out.
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