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Old 01-14-2013, 01:32 PM
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Gauge troubleshooting

I just bought a 99 F250. It has a boost and egt gauge on the A-pillar. The boost one works just fine but the egt does not. It is stuck at 600 degrees all the time. The probe is just after the turbo. What are some things I can check to get it working? I checked out all the wiring and it seems good to go. Thanks
They are autometer gauges by the way.
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Old 01-14-2013, 01:53 PM
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It could be the gauge itself. Have you followed the probe wire from the probe back to the gauge? Have you pulled the probe to see that it's all there and good? What about grounds? I've heard that if the grounds aren't good, gauges can act up.

Just some thoughts.
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Old 01-14-2013, 01:58 PM
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Checked the probe in the exhaust and it looks all good. Followed the wires from the probe to the autometer pyrometer unit that is under the dash and it all looks good. Grounds appear to be good as there is no paint or anything under the ground prong and bolt. Wires all the way to the gauge look good. I may have to replace the gauge but I figured if there is something easy that I didnt know to check I may as well ask. Thanks
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Old 01-14-2013, 04:12 PM
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Check the two long studs on he back and see if there is anything wired to those. If there is then loosen or tighten it and see if that does anything. I had a similar problem with a brand new gauge about 3 weeks ago.
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Old 01-15-2013, 07:09 AM
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I checked those connections, but didnt try undoing them and then reconnecting them. Its starting to look like I may have a bad gauge. Im gonna try wiring up a gauge out of my buddies truck that I know works to check the wiring and then just order a new one.
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