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[Engine] 2hdi engine temp issue
#1
Hi,
I have an issue with my Partner 2hdi, the engine temp gauge reads approx 82c most of the time but will drop back to 70c for 10mins or so & then back to 82c.
Occasionally it will suddendly jump into the red & the stop light on the dash comes on, then within 30 seconds it'll fall back to 82c. Once when this happened I stopped ( engine off ) quickly to check, the top hose was warm & the rad fan was running, then the top hose got hot & on re-starting the temp was 82c.
The water pump was replaced 4 weeks ago along with the timing belt when I first bought the van, so don't know if this was happening before that.
I've replaced the thermostat but that hasn't made any difference.
I wondered if it may be an air lock, but I can't find any advice on bleeding the cooling system, opening the bleed valve on the thermostat housing releases coolant but no air.
The heater works OK.

Any ideas ?

Many Thanks.
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#2
could be an air lock - need to find the bleed points usually on the heater pipes as they go though the balk head.

could also be the temperature sender telling lies - i have a known them to do this.
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#3
Top hose should be far too hot to grip if fan is running.
Mar 2002 Berlingo Multispace Forte 1.9D 166,000 miles
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#4
The other thing you need to check is the radiator it self also the cap on the header tank for seal
                                     Smile  It's too orangey for crow's It's just for me and my dog  Smile

                                                        Heart Heart Love a lot trust a few  Dodgy
 
                                                        

                                        
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#5
Thanks for your ideas, I'll have a play this week-end if I have time.
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#6
(08-05-2015, 06:57 PM)Roadie Wrote:  Thanks for your ideas, I'll have a play this week-end if I have time.

I bled the cooling system using a temp. header tank extension ( pop bottle ) to increase the height of the coolant level, a little more air bled out & I thought this had fixed the issue.
Then 2 days later the problem re-occured.
I've now replaced the coolant temp. sensor & it's been OK for a week, but I have used the van only a few times, however once warmed up the gauge sits at 82c & stays there, so far so good.
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#7
All Sorted ! 

It was the coolant temp. sensor.     [Image: biggrin.png]
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#8
Was the hosing plastic of aluminium?
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#9
Good to see it sorted ant not to much money  the kind i like to see happy day's  Smile
                                     Smile  It's too orangey for crow's It's just for me and my dog  Smile

                                                        Heart Heart Love a lot trust a few  Dodgy
 
                                                        

                                        
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