Pyro Gauge Gone Bad? I hope - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 6 (permalink) Old 11-29-2007, 01:10 PM Thread Starter
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Pyro Gauge Gone Bad? I hope

Hey all. Last night when I was driving on the freeway my pyro gauge started climbing and would not go back down. When it got to 1100 I tuned down to #2 and it went up even faster. I pulled off the freeway and in a parking lot. Left the engine running and popped the hoos. Gauge waid something like 1800+ at that time. I messed with the lead from the thermocouple, got vack in the truck, shut it down. A few moments later I started it up and all was normal again. The turbo spools great, actually better then prior as I replaced a cracked CAC boot yesterday.
All was goo until later last night when I was driving home it did it again EGTs go up ans just keep going. Actually on the way home I could keep them around 1000 deg.
Do you all think it could be my thermocouple went bad or the gauge? Truck seems fine during these events, I can put my hand on the turbo and CAC tubes, they are not hot. I cannot imagine my pipes are getting that hot. I will be under there this morning to figure it out.
I have an Autometer pyro.
Thanks.
Mike

1999.5 F250 PSD 4X4
1/8th mile 8.436 @80.21 mph, 1.848 60ft

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post #2 of 6 (permalink) Old 11-29-2007, 02:15 PM
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Re: Pyro Gauge Gone Bad? I hope

I would say a loose ground or a bad probe...

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post #3 of 6 (permalink) Old 11-29-2007, 03:22 PM Thread Starter
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Re: Pyro Gauge Gone Bad? I hope

Thanks Joe, I thought you were Andrew at first. Nice avitar.

Going to pull the probe and clean it off, check the wiring again in case it is hitting something.

Has anyone else ever had this happen?

1999.5 F250 PSD 4X4
1/8th mile 8.436 @80.21 mph, 1.848 60ft

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post #4 of 6 (permalink) Old 11-29-2007, 03:42 PM
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Re: Pyro Gauge Gone Bad? I hope

Auto meter pyro went bad and would read cold one day and hot the next at cruise speed going 70 mph.
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post #5 of 6 (permalink) Old 11-29-2007, 07:03 PM Thread Starter
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Re: Pyro Gauge Gone Bad? I hope

I pulled the probe and cleaned off the soot. Then traced the wire back to the gauge and made sure it was not touching anything. Seems fine. I guess if it goes funny again I will need to replace either the probe or the entire unit. I am migrating to DiPricol anyway.

Thanks.

1999.5 F250 PSD 4X4
1/8th mile 8.436 @80.21 mph, 1.848 60ft

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post #6 of 6 (permalink) Old 12-02-2007, 05:22 PM
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Re: Pyro Gauge Gone Bad? I hope

Quote:
Originally Posted by NWSUPRD View Post
I pulled the probe and cleaned off the soot. Then traced the wire back to the gauge and made sure it was not touching anything. Seems fine. I guess if it goes funny again I will need to replace either the probe or the entire unit. I am migrating to DiPricol anyway.

Thanks.
autometer pyros have had this problem. a lot of times there is a ground issue, but often with those gauges it is not the case. i am about to be on my third autometer pyro - if they didn't replace them for free, i would've switched by now.

2002 F250
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