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2nd August 2017, 11:58 | #1 |
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help : V6 overheating
hi i have 75 v6 se everything was all working perfect then coming home from work the temp suddenly went to top and strted to overheat,i ask a mechanic and he said its not losing power ,heters ok and runs great can any one shed any lite please
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2nd August 2017, 12:46 | #2 |
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Thread moved to technical help forum and title edited to reflect problem.
Oh ans d a wee bump too |
2nd August 2017, 12:59 | #3 |
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Hi Tony, first thing to do is check to see if your fan works......start engine, press the demist button on the dash and get out of the car. Go around to the front, look through the grill and see if your fan is spinning.
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2nd August 2017, 13:03 | #4 | |
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Quote:
Check your coolant level as well.
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2nd August 2017, 13:30 | #5 |
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If it did it after a period of crawling in traffic or after rapid deceleration (for example coming off a motorway into a queue) then the most likely culprit is your fan, followed by your water pump. Test the fan as per the advice offered earlier. Dying water pumps often (but not always) leak onto the outside of the engine. Also allow the temperature to build a little and then see if adding a few revs makes it stabilise/reduce.
If the temperature has been getting a little higher than normal over a period of time then you've got a leak. As the others have said, take off the acoustic cover and have a look/sniff in the V for evidence of congealed coolant around the thermostat housing and solid pipes. Look for the tell-tale pink stains at the attachment points on your hoses too. And of course the good old water pump. If it suddenly decided to spike after behaving itself before then you may well have an air lock. Has the system been drained and re-filled recently? Or have you done anything with the heater matrix? The good news is that, with the exception of the water pump, everything is reasonably easy to fix. (And even the water pump isn't THAT hard if you've got the right kit). See if Simon (SD1too) is floating around as he's normally pretty good at asking the right questions in overheat situations.
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2nd August 2017, 13:45 | #6 | ||
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Quote:
I think Alan's on the button in post number 3: Quote:
Simon
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2nd August 2017, 15:00 | #7 |
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thk you all for replying the fan does come on just before it overheats,and stays on it can tick over for an hour no probs then 2 little revs it go to engine overheat but still drives perfect /??/?? if any ones near wolverhampton nd wants a cheep 04 v6 se let me know
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2nd August 2017, 15:29 | #8 | |
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Quote:
If so it sounds like you have the classic signs of the cooling fan silver resistor failure. Dead easy fix - just swap it out with an upgraded gold one Have you lost any coolant? - Remember to check the level ONLY when the engine is cold! If the fan is running when demist is active on the ATC and the engine is cold then this is mormal fan behaviour; as others have already said, I would check the thermostat - even if there is no leakage they are known to cause problems!
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S. Wales meets cancelled until further notice [SIGPIC]https://www.the75andztclub.co.uk/forum/image.php?u=23989&type=sigpic&dateline=1467731033[/SIGPIC] Past cars:- BL: Discovery 3.1 & V8 2WD pick-up, Rover 800 Vitesse Turbo Coupe, 820 SLi 180 Fastback, 600ti, Montego 2.0EFi VDP, Ital 1.3 Estate Ford: Transit Cosworth V6, Granada 2.9 V6 Scorpio & 2.8 V6 GL Volvo: 480 Turbo & 1.7 ES, 240 GLE Porsche: 944 2.7 Lux Audi: 100 ESE 20v Peugeot: 405 1.9 GR Talbot: Alpine 1.6 Rapier S |
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2nd August 2017, 15:50 | #9 | |
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Tony; follow the instructions in post number 3. Note that the demist button must be pressed. Let us know the answer. Alternatively, if you'd like expert practical assistance, can you get to one of Arctic's meetings held in your area? Simon
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