EGT

Engines and Engine Systems
gupster
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EGT

Post by gupster » 08 Apr 2017 17:06

Hi all. I am hoping someone can shed some light on this.
I have not used my Patrol for a couple of months and yesterday I took it out for a spin. I immediately noticed that the EGT's went up very slowly and never went passed 250 C. even when doing 120Ks an hour. They also moved down very slowly too. I dont think there is anybody here in Hibberdene to help me and am hoping I wont have to take the Patrol to Durban to sort it out. Its a 2005 3.0l and the madman was installed over a year ago.
Many thanks.
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Tinus lotz
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Re: EGT

Post by Tinus lotz » 08 Apr 2017 17:52

Does the performance feel correct?

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Michael
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Re: EGT

Post by Michael » 08 Apr 2017 21:04

Thats very low EGT's. Is it low on power?
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Re: EGT

Post by Ds J » 08 Apr 2017 21:55

The Patrol was striking that Zuma must go ;)

gupster
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Re: EGT

Post by gupster » 09 Apr 2017 07:43

Hi Tinus and Michael. The trucks performance has not changed at all so I suspect it is directly related to the EGT. I had always watched the temperature like a hawk and never noticed anything change except for now, a drastic difference.
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Tinus lotz
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Re: EGT

Post by Tinus lotz » 09 Apr 2017 08:33

Bad earth or corroded connectors between madman and thermal probe wire but shouldn't be constant if faulty????
:think: :think:

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ChristoSlang
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Re: EGT

Post by ChristoSlang » 09 Apr 2017 10:52

Was it always this low?

Do you measure before or after the turbo?
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gupster
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Re: EGT

Post by gupster » 09 Apr 2017 20:18

Hi Christo. The probe is before the turbo, I think between 2 and 3 cylinders. It always moved very rapidly up and down and I was able once to get it just below 600c going flat out up a hill. However, I cant compare apples with apples as I have never watched the temperature changes on another Patrol. Perhaps I can get feedback here as to how rapidly the temperature should change. With mine, if you traveled at a constant speed, say about 80, and then suddenly accelerated, the temp used to move up at an alarming rate until it reached the high 400 c and then would slow down and slowly creep up to the mid 500c. Would that be normal?
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Tinus lotz
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Re: EGT

Post by Tinus lotz » 09 Apr 2017 20:35

Yip very normal all to do with the amount of right foot and uphill infront of the car ... :salute:

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Michael
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Re: EGT

Post by Michael » 10 Apr 2017 05:41

Sounds like a faulty probe or something related to a wrong reading. If those temps ypu are getting were correct your Patrol would be very very slow and I dont even think it would get to 120km/h.
EGT's fluctuate quite a bit and responds to the amount of fuel you give the engine. Coasting at 120km/h you can expect to see 370 to 450 degrees or more depending and the gradiant of the road.
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