hey everyone I now have guages and was wondering what kind of temp do you want to see before shutting down the engine to protect things like the turbo?
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/ubbthreads/images/graemlins/shrug.gif
egt on shutdown?
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300 deg is what most folks here like to see before turning off the key.
That bring another question. there is no way my egt gauge will drop below 350 no matter how long i idle it. on intitial start the gauge reads 250-300 then i turn on the key and it reads about 50 then i start the truck and it climbs from there. these are just new gauges and i installed the probe into the exhaust manifold about halfway between the last cylander and the end of the cast manifold. threaded and inserted inside the manifold on the drivers side. do you think it could be a probe issue or the gauge not quite calibrated?
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I seem to be having the same problem as you. Most of the time it is taking me more than ten mins to get them down below 400. I am in TX and it is hot here (or what I say is hot) with most of the days being around 90. I have been shutting it down around 400. I am not trying to hijack but would any one know if there is something wrong. The gauges were installed a few months ago and it was going back to 300 but now it takes for ever to get down to that now. Probe is in drives side. Could probe have went bad?? Can the gauge go bad or get out of wak??
I am sure both you am I are trying to get the same problem solved sorry if you think I am hijacking your thread but that is not what I am trying to do just hopeing that we both may get some good answers.
Brent
I am sure both you am I are trying to get the same problem solved sorry if you think I am hijacking your thread but that is not what I am trying to do just hopeing that we both may get some good answers.
Brent
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there is no way my egt gauge will drop below 350 no matter how long i idle it. ... do you think it could be a probe issue or the gauge not quite calibrated?
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Something is wrong.
Both pre-turbo and post-turbo EGT should fall to 300º within a couple of minutes unless the engine was really working hard before you stopped. At most - such as stopping at the top of a mountain pass when towing a heavy trailer - it should cool off to 300º in 7 or 8 minutes. And when unloaded and simply driving around town, it should take only a few seconds to fall to 300º.
My TTM is set for about 280º. My pre-turbo EGT falls to 300º fast, but then it takes it another couple of minutes to fall to 280º. I don't think mine will go much lower than 275º.
there is no way my egt gauge will drop below 350 no matter how long i idle it. ... do you think it could be a probe issue or the gauge not quite calibrated?
[/ QUOTE ]
Something is wrong.
Both pre-turbo and post-turbo EGT should fall to 300º within a couple of minutes unless the engine was really working hard before you stopped. At most - such as stopping at the top of a mountain pass when towing a heavy trailer - it should cool off to 300º in 7 or 8 minutes. And when unloaded and simply driving around town, it should take only a few seconds to fall to 300º.
My TTM is set for about 280º. My pre-turbo EGT falls to 300º fast, but then it takes it another couple of minutes to fall to 280º. I don't think mine will go much lower than 275º.
no problem trying to hyjack thread. lets see if this problem is more a reality for most or not and what might be the problem.
to get it to 400 is no problem it just usually takes a few seconds if i have been a good boy on the go pedal, but under 400 can take 5 min to get to 350-375 and then forget trying to get any lower than that.
anyone else with similar problem?
to get it to 400 is no problem it just usually takes a few seconds if i have been a good boy on the go pedal, but under 400 can take 5 min to get to 350-375 and then forget trying to get any lower than that.
anyone else with similar problem?
I have had gauges for over a year and mine would not go below 400 at idle until I installed a 4" exhaust. Now it drops to 325 as quick as it used to drop to 400. I don't think mine will go down to 300 at idle. I even replaced the thermocouple to make sure it wasn't reading incorrectly. I called Auto Meter and they sent me the replacement for free. Good customer service, but was not the problem. I assumed that this temperature is normal (at least for mine) as it acts the same whether I am on stock or the 120 setting.
Did any of you guys cut the wires going to the thermocouple?
The pyro is calibrated for the length of wire supplied to the thermocouple, if you shorten or lengthen that, you will throw the gauge off.
It sounds like your Pyros are reading high, which I think would indicate a wire too-short. Either that or the gauge is dead.
Mine starts at 0 and rises from there to about 250-275 at idle. Goes down to 300º usually within 1 - 1½ minutes
The pyro is calibrated for the length of wire supplied to the thermocouple, if you shorten or lengthen that, you will throw the gauge off.
It sounds like your Pyros are reading high, which I think would indicate a wire too-short. Either that or the gauge is dead.
Mine starts at 0 and rises from there to about 250-275 at idle. Goes down to 300º usually within 1 - 1½ minutes
no i definatly did not change the length of wire supplied with the kit for my egt gauge. and i know autometer is a very good name in gauges. I was wondering if maybe the placement of the probe has something to do with the funny readings. (Thinking out loud)
Anyone????
Anyone????
If yours starts at "0", I would be concerned that yours is reading too cold unless you are in Alaska right now. When you turn on the key, the gauge should read ambient outside temperature if the truck has been sitting all night. I would rather mine read too hot than too cold since high EGT's is my main concern.
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I shut down at 300* pre turbo. Our house is about a 2 minute drive at around 25mph back to the back corner of our neighborhood, so by the time I'm there and into the driveway, I'm usually right about 300 or only have to wait 10-15 seconds. /ubbthreads/images/graemlins/warmsmile.gif
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If yours starts at "0", I would be concerned that yours is reading too cold unless you are in Alaska right now. When you turn on the key, the gauge should read ambient outside temperature if the truck has been sitting all night. I would rather mine read too hot than too cold since high EGT's is my main concern.
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I was just saying that it start at the bottom and goes up, because I have ISSPRO's they drop when I turn off the key.
....and I am in Wyoming, it was a max of 25º here last night, so it wouldn't read very high even if it is picking up the ambient temp.
If yours starts at "0", I would be concerned that yours is reading too cold unless you are in Alaska right now. When you turn on the key, the gauge should read ambient outside temperature if the truck has been sitting all night. I would rather mine read too hot than too cold since high EGT's is my main concern.
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I was just saying that it start at the bottom and goes up, because I have ISSPRO's they drop when I turn off the key.
....and I am in Wyoming, it was a max of 25º here last night, so it wouldn't read very high even if it is picking up the ambient temp.
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No the wires were not cut on my probe. It will get to 400 like 2 mins but after that it just takes a butt load of time to go below 400. I also have 3.5 DP to 4 all the way back with AFE stage 2. At start in the morning I belive it is at something like 200 or 250. I am trying not to shut down at 400 but most of the time I do. Do any of you thing it will be bad to shut down at 400??
Brent
Brent
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No the wires were not cut on my probe. It will get to 400 like 2 mins but after that it just takes a butt load of time to go below 400. I also have 3.5 DP to 4 all the way back with AFE stage 2. At start in the morning I belive it is at something like 200 or 250. I am trying not to shut down at 400 but most of the time I do. Do any of you thing it will be bad to shut down at 400??
Brent
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I wouldn't shut down at a true 400º, what are you calling a long time?
FWIW synth oil handles baking better than dino. 350º is my max limit.
No the wires were not cut on my probe. It will get to 400 like 2 mins but after that it just takes a butt load of time to go below 400. I also have 3.5 DP to 4 all the way back with AFE stage 2. At start in the morning I belive it is at something like 200 or 250. I am trying not to shut down at 400 but most of the time I do. Do any of you thing it will be bad to shut down at 400??
Brent
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I wouldn't shut down at a true 400º, what are you calling a long time?
FWIW synth oil handles baking better than dino. 350º is my max limit.
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319 Posts
I am running Dino and I have sat for like 5 or 6 mins and it is just strating to go below 400. Do you know of a way to check the gauge and/or probe?? Do you know of any way to tell the true temp??
Brent
Brent
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