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Old 05-15-2010, 04:57 AM
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fuel temp warning?

The last few times ive been getting in my truck, i will turn my key initially and wait for the GP light to go off and i will get this audible alarm saying "fuel temp warning" and my gaguge would be in the orangeish/red on my DD then i will start the engine and it will be like that for a few more secs and drop down into the normal temp range after a few seconds... My truck is running fine, so i dont know whats going on...?

Why is it doing this? What can i do to fix this? Is this just a glich maybe in my DD?

In 3 days im about to make a 1200 mile trip and i was planning on running my 275 tune considering that was the tune i ran on on the way up north a week ago and everything was great...
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Old 05-15-2010, 07:53 PM
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What is the warning set at, and what is the temperature that it is seing when you start the truck. Hows the weather been?
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Old 05-16-2010, 04:03 PM
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It does this because your engine heats up the sitting fuel in the lines while the truck is off. Once the fuel starts moving again, it cools off. I would turn that audible alarm off for that parameter and just have it set to be red when its high.
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Old 05-16-2010, 05:04 PM
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I believe the truck has cooled off due to the fact that he wait for the glow plug light to go off before starting. When the temp are nice like now. The glow plugs dont seem to come on unless it first thing in the morning.

Reset your fuel temp warning to a higher level. Next time you fire it up. Make a note of what the temp is. Might be a wonky sensor.

But Jeff is right. These sucker heat soak like a Mo Fo. Ive seen as high 140-50F from driving and shutting off then driving again.
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Old 05-17-2010, 05:06 AM
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08stroker250 is exactly right, i got a email from mick explaining to me the same thing... im just going to set my audible alarm to off and use it for a high setting. Thanks fellas for your help!
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