#1: 206 1.4 8v 1999 temperature problems Author: steveo1259, Location: ManchesterPosted: Fri May 10, 2013 3:58 pm ---- Hi all,
Just having a small problem with my 206 at the moment.
I think i have an 82c thermostat in my engine however over the past few weeks the engine has been 90c and often hits almost 100 when under any sort of load or going up a hill however the temperature does come down slowly after the hill has passed.
It has never done this before and is normally under 90c. Is it safe at 100? I've checked the oil and water and they seem fine. I've also checked the engine fan and that comes on when I turn on the air con and I've seen it come on when the engine was idling and hit 90c or there abouts so that's working.
What are the chances of it being a broken thermostat? Is there anything else I should be checking?
Thanks for your help.
#2: Re: 206 1.4 8v 1999 temperature problems Author: Steve206, Location: UKPosted: Fri May 10, 2013 4:26 pm ---- When, if ever was the coolant changed?
#3: Re: 206 1.4 8v 1999 temperature problems Author: DREWDEN, Location: huddersfieldPosted: Fri May 10, 2013 4:28 pm ---- Could be Airlock
Pressure cap faulty
Faulty temperature sensor
#4: Re: 206 1.4 8v 1999 temperature problems Author: steveo1259, Location: ManchesterPosted: Fri May 10, 2013 4:39 pm ---- I've had the car almost a year now. The people i bought it from *said* it had a service just before i got it in July 2012 however i don't know if they had changed the coolant.
It is due an MOT in june though and i was going to get a full service performed at the same time, do you think I should bump that up to now to see if that solves the problem?
How easy would it be to change the coolant myself? I dont have much experience and nothing above basic tools?
Why/how would it form an airlock if the system was closed? Again, is this something i could check myself or would the garage have to do that?
How would i check for pressure cap faults?
Is there a way to check the temperature sensor or do I just have to replace it and hope for the best?
#5: Re: 206 1.4 8v 1999 temperature problems Author: Deckchair5, Location: Bath UKPosted: Sat May 11, 2013 2:20 am ---- I think i have an 82c thermostat in my engine however over the past few weeks the engine has been 90c and often hits almost 100 when under any sort of load or going up a hill however the temperature does come down slowly after the hill has passed.
Are you sure your slow speed fan setting is working? You say the "fan is working" but I'm thinking are you just seeing/ hearing just the hi speed fan coming on in which case you will experience higher than normal gauge temps at times and the fan only working at max speed when the temp is higher. My fan slow speed setting come on around 90C. Quite common for the low speed fan resistor or relay contacts to fail as their stuck out the front but then it gets all the elements thrown at it.
Start the engine and listen very carefully or look for the fan starting up as temp goes above 90C.
Until you sort out the problem you could use your cabin heater to drag down the coolant temp which will do a similar job to the slow speed rad fan setting. Sounds like your hi speed fan setting is working though and so that will prevent overtemping
#6: Re: 206 1.4 8v 1999 temperature problems Author: steveo1259, Location: ManchesterPosted: Sat May 11, 2013 5:44 am ---- I think the low speed fan is working, I left the car idling the other day and as the temperature gauge hit 90c the fan in front of the radiator came on and it wasn't too loud so I assume it was the low speed fan? It also comes on at that speed when I put the air con on.
Would this mean that the low speed fan is working?
To use the cabin heater would I put the temperature to max heat to help drag the engine temperature down?
#7: Re: 206 1.4 8v 1999 temperature problems Author: Deckchair5, Location: Bath UKPosted: Sat May 11, 2013 6:51 am ---- I think the low speed fan is working, I left the car idling the other day and as the temperature gauge hit 90c the fan in front of the radiator came on and it wasn't too loud so I assume it was the low speed fan? It also comes on at that speed when I put the air con on.
Would this mean that the low speed fan is working?
Yes it would and that's good news. So now I would be thinking if the fan is working properly when the car is stationary, (and that's the worse of all with no natural air flow through the radiator) then why is the temp being allowed to creep up well above 90C when you're on the move? So the next time the gauge creeps up well above 90C then I'd check if the fan is working at that time. If it is then I'd be thinking about the coolant flow, so feel around, feel the radiator top hose, is it really hot? Feel the radiator ( watch your fingers as the fan might start at any time), is it hot at the top and coolish at the bottom indicating some sort of flow through the radiator.
To use the cabin heater would I put the temperature to max heat to help drag the engine temperature down?
Yes that's right, you're trying to draw heat out of the coolant system the same as the rad fan does
#8: Re: 206 1.4 8v 1999 temperature problems Author: V9977, Location: Athens, GreecePosted: Sat May 11, 2013 7:02 am ---- Sounds like coolant circuit / radiator would need to be flushed as a first step and take it from there.
Also, very often the heater matrix in the cabin is blocked preventing proper flow of coolant, irrespectively of heating setting.
Wax thermostat is 89 deg. C on the 206, that could be getting stuck too.
Proper refil and bleeding takes some care and effort ime.
#9: Re: 206 1.4 8v 1999 temperature problems Author: steveo1259, Location: ManchesterPosted: Sat May 11, 2013 7:15 am ---- If it is then I'd be thinking about the coolant flow, so feel around, feel the radiator top hose, is it really hot? Feel the radiator ( watch your fingers as the fan might start at any time), is it hot at the top and coolish at the bottom indicating some sort of flow through the radiator.
I've already done this based on other threads as well and the top hose was really hot and the bottom home wasnt as hot which is a good thing?
Also, very often the heater matrix in the cabin is blocked preventing proper flow of coolant, irrespectively of heating setting.
The temperature adjusts a lot based on what I set the temperature to, cold is still cold and hot is still very hot. Does this mean that the heater matrix is not blocked?
#10: Re: 206 1.4 8v 1999 temperature problems Author: Deckchair5, Location: Bath UKPosted: Sat May 11, 2013 7:15 am ---- I don't think this chap would have survived this last winter in Manchester if the heater matrix was blocked A blocked heater matrix won't affect engine temperature as it's a parallel circuit
If you feel the top hose going to the radiator when the engine is coming up to temp from cold then if it suddenly gets really hot then the thermostat is opening and not stuck closed or open
The temperature adjusts a lot based on what I set the temperature to, cold is still cold and hot is still very hot. Does this mean that the heater matrix is not blocked?
That's right. It also indicates you have good flow at least through the cabin.
Have you had any loss of coolant issues? Boiling over? Sudden loss of fluid? Needing to top up often? Last edited by Deckchair5 on Sat May 11, 2013 7:21 am; edited 1 time in total
#11: Re: 206 1.4 8v 1999 temperature problems Author: steveo1259, Location: ManchesterPosted: Sat May 11, 2013 7:19 am ---- No definitively wouldn't have survived the last winter in Manchester without heaters!
I'm currently located in Bristol though so its slightly warmer (I keep telling myself)
I assume i would have to do the warm up test from engine cold?
#12: Re: 206 1.4 8v 1999 temperature problems Author: Deckchair5, Location: Bath UKPosted: Sat May 11, 2013 7:24 am ---- I assume i would have to do the warm up test from engine cold?
Yes that's right, you could sit in the cabin until it gets above 80C, then if you hold the top hose, once the engine gets near 90C, the hose should quickly get too uncomfortable to hold, that tells you the engine is up to temp and the thermostat is opening and dumping the hot coolant out to the radiator circuit for cooling
#13: Re: 206 1.4 8v 1999 temperature problems Author: V9977, Location: Athens, GreecePosted: Sat May 11, 2013 7:26 am ---- You're right it's parallel on this so wouldn't affect it anyway.
I would still flush the system though as a first step as it's always a good thing to get the crap out of there.
Water pump doing OK?
#14: Re: 206 1.4 8v 1999 temperature problems Author: steveo1259, Location: ManchesterPosted: Sat May 11, 2013 7:35 am ---- I'll check and see if it suddenly gets hot next time i take it out then.
Haven't got the tools to flush the system myself, how much do you reckon it would be at a garage?
I think the water pump is doing ok, how would i know if it wasnt?
#15: Re: 206 1.4 8v 1999 temperature problems Author: V9977, Location: Athens, GreecePosted: Sat May 11, 2013 7:39 am ---- Do you know when was it last changed (cambelt time)?
How many miles on the clock?
#16: Re: 206 1.4 8v 1999 temperature problems Author: Deckchair5, Location: Bath UKPosted: Sat May 11, 2013 7:44 am ---- A good coolant flush is always good to improve efficiency but you're wise to not attempt it if you're not feeling confident as it's easy to induce air locks and make the system worse
I think I'd do a system bleed first as that's quite straightforward and needs no special tools ( I think there's a "How to" on the site) as it may just be a simple air lock somewhere.
For a bad water pump then you'd have bad circulation so symptoms might be engine overheating and importantly, not cooling again, poor heater response etc
#17: Re: 206 1.4 8v 1999 temperature problems Author: steveo1259, Location: ManchesterPosted: Sat May 11, 2013 7:54 am ---- The cambelt has never been changed I dont think. Im the car's second owner after an elderly women owned it from new.
It had done 44000 miles when i bought it and its done 51000 miles now so I was going to get around to changing cambelt and water pump in the next year or so.
I dont appear to be getting poor heater response and the engine hasn't actually overheated as of yet, just increased in temperature a few times as described and it always comes back down.
#18: Re: 206 1.4 8v 1999 temperature problems Author: Deckchair5, Location: Bath UKPosted: Sat May 11, 2013 7:59 am ---- You are well overdue on a cambelt change if that's a 1999 original belt. Don't delay with that, get it done now as it will totally wreck the engine if it fails
"When should I change the timing belt?"
At least a week before it breaks
#19: Re: 206 1.4 8v 1999 temperature problems Author: steveo1259, Location: ManchesterPosted: Sat May 11, 2013 8:00 am ---- Ok, how much generally for a cambelt change as well then?
#20: Re: 206 1.4 8v 1999 temperature problems Author: Deckchair5, Location: Bath UKPosted: Sat May 11, 2013 8:04 am ---- You'd have to ring around on that one but it's wise to have water pump changed as well whilst they are in there so ask for a quote for both. They'll also need to replenish coolant and antifreeze etc to do the pump
#21: Re: 206 1.4 8v 1999 temperature problems Author: Timon2210, Location: PalestinePosted: Sat May 11, 2013 3:02 pm ---- Well from what I read in your thread,I believe that your car has no problem at all,it's working perfectly normal,as the temp in petrol engines should be on 90 sharp all the times,but when we have load,or hot weather,the temp well go up as in your car,about 95-98oC,and then the low speed fan kicks and get the temp back to 90oC,which is the normal temp,so don't worry,as there is nothing to worry about ,everything is fine and working well as it should be.
But if you need help in changing the coolant,i will be glad to guide you through,and show you what to do exactlly,i think we need a "How to" for this job soon.
#22: Re: 206 1.4 8v 1999 temperature problems Author: steveo1259, Location: ManchesterPosted: Sat May 11, 2013 6:24 pm ----
Timon2210 wrote:
Well from what I read in your thread,I believe that your car has no problem at all,it's working perfectly normal,as the temp in petrol engines should be on 90 sharp all the times,but when we have load,or hot weather,the temp well go up as in your car,about 95-98oC,and then the low speed fan kicks and get the temp back to 90oC,which is the normal temp,so don't worry,as there is nothing to worry about ,everything is fine and working well as it should be.
But if you need help in changing the coolant,i will be glad to guide you through,and show you what to do exactlly,i think we need a "How to" for this job soon.
Well that's reassuring I suppose what was worrying me was the fact that normally it was always 90c or under instead of over.
The how to guide sounds very good! defo a very simple step by step guide for beginners as mine isn't the first thread i have seen regarding temperature. Maybe one for replacing the temperature sensor as well?
#23: Re: 206 1.4 8v 1999 temperature problems Author: Deckchair5, Location: Bath UKPosted: Sun May 12, 2013 6:16 am ---- often hits almost 100 when under any sort of load or going up a hill however the temperature does come down slowly after the hill has passed.
It has never done this before and is normally under 90c
I'm sorry but that is not normal for a car in the UK at this time of year in particular with an outside temp of 10 to 15C max. I have 3 Peugeots here and none of them will go anywhere near 100C unless sat stationary on a very hot day. Different in Palestine I would suspect for sure with higher outside temps but not in cool UK
The high speed fan setting should take care of it but your car shouldn't be rising to 100C regularly in these outside temps just because you are going up a hill etc
System flush, new coolant, renewed cambelt and tensioner ( urgent!) and new water pump whilst they're there, I'd replace the thermostat anyway if that's the original in there and your car's cooling system should act like new.
#24: Re: 206 1.4 8v 1999 temperature problems Author: kandlbarrett, Location: SwindonPosted: Sun May 12, 2013 11:18 am ---- The top hose test will show you that the thermostat is opening and opening in one go rather than sticking but it won't tell you that it is opening at the right temperature. Thermostats also get "lazy" and can open later than their design temperature so it is not a perfect test.
#25: Re: 206 1.4 8v 1999 temperature problems Author: Deckchair5, Location: Bath UKPosted: Sun May 12, 2013 12:08 pm ---- The top hose test will show you that the thermostat is opening and opening in one go rather than sticking but it won't tell you that it is opening at the right temperature.
Either look at your dash gauge when it opens or if you don't trust that and want to be more accurate then connect up and look at the OBD reported engine temp readings
#26: Re: 206 1.4 8v 1999 temperature problems Author: kandlbarrett, Location: SwindonPosted: Mon May 13, 2013 3:55 pm ---- +1 ecu reading. I have proven many top hose tests to be wrong by taking ECU output but you do need the equipment to do that.
However, even an ECU reading needs a correctly functioning temp sensor.
Note that from my experience with petrol 206s your readings for the UK do seem slightly higher than normal.
A cheap infra-red sensor aimed at the thermostat housing can be a good check but even then you can see temperatures swing wildly and rapidly and the the unknowing will think something is wrong.
#27: Re: 206 1.4 8v 1999 temperature problems Author: steveo1259, Location: ManchesterPosted: Tue May 14, 2013 6:11 am ---- Good idea with the ECU reading however i believe it will only work with something like peugeot planet as every single Reader we have plugged into the car has failed to work with it.
I think its because its a 1999 model before a proper standard was introduced?
#28: Re: 206 1.4 8v 1999 temperature problems Author: macca1411, Location: Westhoughton, LancashirePosted: Tue May 14, 2013 6:20 am ----
steveo1259 wrote:
Ok, how much generally for a cambelt change as well then?
Contact Cartoonhead. he's based in M24 and is highly recommended by many members on here.
I have PP so can probably sort something out at the same time as you having the belt done.
#29: Re: 206 1.4 8v 1999 temperature problems Author: kandlbarrett, Location: SwindonPosted: Wed May 15, 2013 4:11 pm ---- Might be worth a coolant "sniff" test. that checks the coolant for combustion gases and will rule in or out a head gasket starting to fail.
#30: Re: 206 1.4 8v 1999 temperature problems Author: steveo1259, Location: ManchesterPosted: Tue May 21, 2013 9:40 am ---- I took it to the garage and they have done some tests and there is no air getting through the radiator fins so they want to replace the radiator and thermostat. If no air was getting through it would explain the increased temperature at higher revs but not at lower ones...
What do you guys think on this?
#31: Re: 206 1.4 8v 1999 temperature problems Author: kandlbarrett, Location: SwindonPosted: Wed May 22, 2013 12:34 pm ---- Blocked radiator will cause an overheat under any load or revs.
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A blocked heater matrix won't affect engine temperature as it's a parallel circuit
I suppose what was worrying me was the fact that normally it was always 90c or under instead of over.
