P38A Temperature gauge

pete12345 · Apr 13, 2022

After fitting new instrument cluster temp gauge doesn’t seem to be reading right last one was bang in middle this one seems lower all the time does anyone know what the coolant temp should be when read of the nanocom and then to next problem

kermit_rr · Apr 13, 2022

Which engine?

Datatek · Apr 13, 2022

If it's the diesel, the optimum running temperature is 95C. The gauge is normally just to the left of centre between about 80C to 105C but it varies a little from car to car.

pete12345 · Apr 13, 2022

Sorry so late replying dog walking time no it’s 4.6 but can check coolant temp on the nanocom

Grrrrrr · Apr 13, 2022

I suspect there may be a way of adjusting the guage slightly on the back of the instrument cluster somewhere but never tried.

pete12345 · Apr 13, 2022

Mabey but that involves removal of the binical again deep joy

brianp38dse · Apr 13, 2022

I seam to remember another member having a fault and talking about a adjustment pot on the board .

pete12345 · Apr 14, 2022

Ok cheers will have to get binical out again I wanted to check the coolant temperature on the nanocom to see I’ve it was close I would think it’s not much different from what data posted on the diesel

pete12345 · Apr 14, 2022

Run it for about 30 minutes and it went up to 90c then dropped down to 88 so think all is good had to reset the eas got in started up and it said slow 35 I wouldn’t mind it’s not even got wheels on it still got problems with brake pressure on the pedal thou nanocom said pressure switch fault 1st time checking cleared fault tried again started up pumped pedal couple of times checked for faults no faults found any suggestions greatly appreciated mabey have to re bleed all the brakes got new accumulator on it

Datatek · Apr 14, 2022

pete12345 said:
Run it for about 30 minutes and it went up to 90c then dropped down to 88 so think all is good had to reset the eas got in started up and it said slow 35 I wouldn’t mind it’s not even got wheels on it still got problems with brake pressure on the pedal thou nanocom said pressure switch fault 1st time checking cleared fault tried again started up pumped pedal couple of times checked for faults no faults found any suggestions greatly appreciated mabey have to re bleed all the brakes got new accumulator on it

The brakes can be difficult to bleed.

pete12345 · Apr 14, 2022

Yer tell me about it I’ve already bled them but will get me mate from garage down the road to help I think but there doesn’t seem to be any air in the pipes will give it another try tho

kermit_rr · Apr 14, 2022

Mine (4.0) cruises around 92c, goes up to 96c when standing, think the stat is fully open at that point

tomcat59alan · Apr 14, 2022

kermit_rr said:
Mine (4.0) cruises around 92c, goes up to 96c when standing, think the stat is fully open at that point

Then goes to over 110 in quick time.

Datatek · Apr 14, 2022

pete12345 said:
Yer tell me about it I’ve already bled them but will get me mate from garage down the road to help I think but there doesn’t seem to be any air in the pipes will give it another try tho

Has to be done according to RAVE, getting the air out of the modulator is the hard bit.

kermit_rr · Apr 14, 2022

tomcat59alan said:
Then goes to over 110 in quick time.

Probably though i always shut off around 100

pete12345 · Apr 14, 2022

Yer cheers will do the lot again and hopefully more pressure on the pedal

Marshall8hp · Apr 14, 2022

My GEMS runs around 86 on the highway, 88 around town and gets up to around 95 if sitting in traffic on a hot day and high humidity.

pete12345 · Apr 14, 2022

I don’t think we get your temperature or humidity on the isle of Sheppy but will keep a check on the old temp thanks

RangeRoller dt · Apr 14, 2022

Set plunger on the back of the pedal?

Gord Wedman · Apr 15, 2022

My 99 with 4.6 cruises at 185F/85C. That is measured with an Autometer gauge with the sensor in the lower radiator hose. The dash Guage sits just left of center and hardly ever moves. I don't think I have ever gone above 210F/98C.

P38A Temperature gauge

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