I

Irishss

Member

• Monday at 19:49

• #1

Back again…
Acquired a 99 2.5 diesel auto.
New service, brakes, in tank pump and running great..

Drove it 4 days no issues.
Other day she got hot and cut out..
I let her cool and made it home.

Radiator is was replaced before I got it..a Nissans Radiator.
New water pump, thermostat, fan was working ok..
Put it back together, flushed rad, heat on, idle ok, adding coolant etc..

Put cap back on and the rad hoses were getting very hard..
When idling no bubbles..

Any help greatly appreciated..

The thermostat and water pump I removed where ancient…
Fan sounded a lot better with the new water pump..
Clean egr, vehicle has buckets of power now..

But the rad hoses keep getting hard…

Is there a test kit I can buy to check the head..??
Thanks

 

kermit_rr

Very

Full Member

• Monday at 20:36

• #2

Yes there's a sniff test liquid you can get but make sure you get the diesel one. You can get universal ones that work on petrol and diesel but I'm not sure how good they are

 

Mark Piercy

Well fumbled member....

Full Member

• Monday at 21:43

• #3

How does the fan sound on cold start up?

 

I

Irishss

Member

• Monday at 21:52

• #4

Mark Piercy said:

How does the fan sound on cold start up?

Click to expand...

Fan sounds great, bloody engine sounds great to after water pump and all service items

 

Mark Piercy

Well fumbled member....

Full Member

• Monday at 22:01

• #5

How does it sound, does it roar or is it quiet on cold start up?

 

kermit_rr

Very

Full Member

• Monday at 22:06

• #6

Mark Piercy said:

How does it sound, does it roar or is it quiet on cold start up?

Click to expand...

It should also be stiff to turn by hand when it's stone cold in the morning

 

I

Irishss

Member

• Monday at 22:15

• #7

kermit_rr said:

It should also be stiff to turn by hand when it's stone cold in the morning

Click to expand...

When I had the fan off, it was stiff when I rotated it…

 

I

Irishss

Member

• Monday at 23:02

• #8

Mark Piercy said:

How does it sound, does it roar or is it quiet on cold start up?

Click to expand...

It does not roar

 

brianp38dse

Well-Known Member

• Monday at 23:14

• #9

It should roar like a tank on start up then go quiet then roar again when it gets hot.
just because its turning does not mean its working right.

 

RangeRoller dt

Well-Sprung Member

• Yesterday at 00:00

• #10

Newspaper test - roll up a newspaper and slowly insert into the viscous fan. When cold it should stop the fan turning but as engine warms it should get more resistance and try to shred the newspaper. (Free when cold - locked when hot)

Careful to keep all fingers away and don’t wear a tie

 

Datatek

Well-Known Member

• Yesterday at 07:37

• #11

Viscous fan failure is common so I have dispensed with it and use the aircon fans for cooling.

 

I

Irishss

Member

• Yesterday at 07:51

• #12

Datatek said:

Viscous fan failure is common so I have dispensed with it and use the aircon fans for cooling.

Click to expand...

So remove it and leave the 2 in front on??

 

I

Irishss

Member

• Yesterday at 09:13

• #13

Mark Piercy said:

How does it sound, does it roar or is it quiet on cold start up?

Click to expand...

Definitely not a roar on start up, actually come to think of it, it was roaring on startup….but now not…start vehicle and the fan is operating very quietly all the time..

I’ll do the newspaper test and get sniff test..

 

kermit_rr

Very

Full Member

• Yesterday at 09:21

• #14

Irishss said:

Definitely not a roar on start up, actually come to think of it, it was roaring on startup….but now not…start vehicle and the fan is operating very quietly all the time..

I’ll do the newspaper test and get sniff test..

Click to expand...

sounds like its failed/failing

 

Datatek

Well-Known Member

• Yesterday at 09:23

• #15

Irishss said:

So remove it and leave the 2 in front on??

Click to expand...

No, I add thermostatic control, easy and simple to do. If you want details of my electric cooling mod, PM me with an email address.

 

Last edited: Yesterday at 16:44

Datatek

Well-Known Member

• Yesterday at 09:24

• #16

Irishss said:

Definitely not a roar on start up, actually come to think of it, it was roaring on startup….but now not…start vehicle and the fan is operating very quietly all the time..

I’ll do the newspaper test and get sniff test..

Click to expand...

From that description, it's knackered.

 

Mark Piercy

Well fumbled member....

Full Member

• Yesterday at 11:13

• #17

I wouldn't worry about the sniff test unless it's caused a gasket failure