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Author Topic: 2.5TD RUNNING TEMPERATURE  (Read 3482 times)

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Omegatoy

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Re: 2.5TD RUNNING TEMPERATURE
« Reply #15 on: 17 May 2008, 20:04:46 »
OOOH BIG CLUE THERE!!!!! shagged/worn auto transmission can make the engine get really hot!!! thats what happened to me  when i melted the autobox the engine temp went skyhigh!!!
« Last Edit: 17 May 2008, 20:05:26 by Omegatoy »
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Seth

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Re: 2.5TD RUNNING TEMPERATURE
« Reply #16 on: 27 May 2008, 10:33:59 »
Right, I've checked - the rad fans did not cut in.
Anyone know where the thermal switch for these fans is located?
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andyiow

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Re: 2.5TD RUNNING TEMPERATURE
« Reply #17 on: 27 May 2008, 16:23:25 »
Highest I have seen on my manual TD is about 92/93 and that was when I was going up a longish and fairly steep hill in 2nd for about 15minutes or so fully loaded and a trailer.

I have noticed that the temperature also has a habit of going up and staying warmer when the oil is nearing changing time. Have yet to actually have any of the fans on, but do check and clear the fan areas every month or so to clear any debris out such as leaves and the occasional small bird.
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platty

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Re: 2.5TD RUNNING TEMPERATURE
« Reply #18 on: 27 May 2008, 16:30:08 »
My TD always sits around 90 degrees with the viscous fan on. During the winter I take the viscous off and it still stays about the same, when you welly it it make 95 absolute maximum as the fans come straight on then.

Its worth removing the viscous to check that the electric fans come on when they should - with the viscous on they never get a chance!!

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TheBoy

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Re: 2.5TD RUNNING TEMPERATURE
« Reply #19 on: 27 May 2008, 21:34:12 »
Quote
Right, I've checked - the rad fans did not cut in.
Anyone know where the thermal switch for these fans is located?
2 of them, top and bottom of rad, passenger side (non A/C models on have 1 switch).
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TheBoy

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Re: 2.5TD RUNNING TEMPERATURE
« Reply #20 on: 27 May 2008, 21:36:00 »
Temp wise, mine has a good cooling system, and it sits just below 93/95, creeping up to 96 sometimes before electric fans do the business.

I run without a viscous fan.
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Seth

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Re: 2.5TD RUNNING TEMPERATURE
« Reply #21 on: 16 June 2008, 21:02:13 »
I've now changed the rad.
It's made hardly any difference, although the old rad was considerably heavier than the new one. I've temporarily wired-up the two electric rad fans to run constantly - again, little difference.
What d'you think, should I try a new thermostat?
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TheBoy

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Re: 2.5TD RUNNING TEMPERATURE
« Reply #22 on: 16 June 2008, 21:07:20 »
Have you checked waterpump still has a full compliment of vanes?
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osealy

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Re: 2.5TD RUNNING TEMPERATURE
« Reply #23 on: 16 June 2008, 21:31:49 »
I see this with interest. I think he said earlier that he had a new pump.
I can manage fine mostly. but in heavy traffic or on long inclines I have to turn the heating on to keep it below 100.
However I hope to tow 1200Kg skiboat 120mls for hols & dont want to have to do it at night.
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Omegatoy

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Re: 2.5TD RUNNING TEMPERATURE
« Reply #24 on: 16 June 2008, 21:37:40 »
Quote
I see this with interest. I think he said earlier that he had a new pump.
I can manage fine mostly. but in heavy traffic or on long inclines I have to turn the heating on to keep it below 100.
However I hope to tow 1200Kg skiboat 120mls for hols & dont want to have to do it at night.

well out here the day temp is around 31/32 and we come up some long hard steep inclines and my temp never gets above 98 even when really revving engine to beat the spaniard boy racers up the hills, :o even towing the big caravan up the hills it doesent get over 99 and that weighs around 2 ton!!
so something is really wrong somewhere!!!
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TheBoy

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Re: 2.5TD RUNNING TEMPERATURE
« Reply #25 on: 16 June 2008, 21:39:56 »
I have my theories about the oil, but want to ensure the cooling system is A1 before going down that line
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Omegatoy

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Re: 2.5TD RUNNING TEMPERATURE
« Reply #26 on: 16 June 2008, 21:41:45 »
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I have my theories about the oil, but want to ensure the cooling system is A1 before going down that line


hehe you had a good teacher!!!! :y
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TheBoy

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Re: 2.5TD RUNNING TEMPERATURE
« Reply #27 on: 16 June 2008, 21:44:22 »
Quote
Quote
I have my theories about the oil, but want to ensure the cooling system is A1 before going down that line


hehe you had a good teacher!!!! :y
It cured mine. Shame head was already shafted :(
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osealy

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Re: 2.5TD RUNNING TEMPERATURE
« Reply #28 on: 16 June 2008, 21:45:02 »
My electric fans come on occaisionally. vicous i think is coasting, Faulty temp sender??? Can I use the Lidl oven meat prod to check like I did on small block boat eng which was reading double the truth, I stuck it through a cork stuck in the sender hole. replaced sender so guess guage is faulty, (boat that is)
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TheBoy

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Re: 2.5TD RUNNING TEMPERATURE
« Reply #29 on: 16 June 2008, 21:47:56 »
Quote
My electric fans come on occaisionally. vicous i think is coasting, Faulty temp sender??? Can I use the Lidl oven meat prod to check like I did on small block boat eng which was reading double the truth, I stuck it through a cork stuck in the sender hole. replaced sender so guess guage is faulty, (boat that is)
Could be faulty temp sender, though TD ones normally good.  If a 1998 onwards, could also be a config error on instrument panel.
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