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 Posted: Wed Jun 22, 2016 11:40 pm |
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Joined: Jun 19, 2016
Posts: 12
Trade Rating: 0
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bought a 04 plate 1.4 hdi a month ago, 80k miles on it. had it serviced seemed everything was fine. car has always run a little hot, i thought, since it ran at 90-100 or 80-85 when driving a bit slower.yesterday night on the highway i was pretty much topping it out when i noticed the temperature was red and stop sign flashing at me. i pulled over right away, engine stayed in hot for maybe 1 to 2 minutes. after 10 minutes the temperature was back to 90 but since that incident the engine has been running quite hot. its now regularly running at ~ 120 and if pushed it will get into red again. is this the head gasket?
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Posted: Thu Jun 23, 2016 8:44 am |
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Joined: Feb 16, 2010
Posts: 440
Trade Rating: +2
Location: Devon
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Is there bubbles or Oil appearing in the header tank?
Is both rubber radiator pipes getting hot after running?
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Posted: Thu Jun 23, 2016 11:10 am |
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Joined: Jun 19, 2016
Posts: 12
Trade Rating: 0
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dont see oil in the header tank, havent checked about the pipes, how would i check these, just with my fingertips?
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Posted: Thu Jun 23, 2016 11:16 am |
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Joined: Feb 16, 2010
Posts: 440
Trade Rating: +2
Location: Devon
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yeah just by touch,
give it a rev and see if any bubbles appear in the tank.
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Posted: Thu Jun 23, 2016 12:17 pm |
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Joined: Nov 27, 2010
Posts: 11520
Trade Rating: +10
Location: What's it to you? ? ?
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Is the cooling fan working?
Diesel run cooling then petrol & its rare for the cooling fan to cut in during normal driving.
Cooling fan wiring rotting out is a known weak point on the 206.
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| Toyota C-HR GR Sport 2.0 Hybrid with JBL & Alcantara packs. | |
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Posted: Thu Jun 23, 2016 12:26 pm |
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Joined: Feb 16, 2010
Posts: 440
Trade Rating: +2
Location: Devon
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| thng33 wrote: |
| at what temperature do i check for bubbles? any temperature? do i literally open the cap to look or do i keep it closed? sorry for dumb questions |
Take cap off, start and leave car running for 10 minutes or so. Generally once the engine is climbing up through the temperature.
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Posted: Thu Jun 23, 2016 4:14 pm |
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Joined: Jun 19, 2016
Posts: 12
Trade Rating: 0
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i can see the water moving when its revving, not sure if its bubbles. both pipes coming off the radiator are hot indeed, fan is working
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Posted: Fri Jun 24, 2016 9:28 am |
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Joined: Feb 16, 2010
Posts: 440
Trade Rating: +2
Location: Devon
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Coolant is circulating, Do the heaters get hot? Temp sensor could be lying...had that before on a 2.0hdi. Would need to put on diagnostics to check though
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Posted: Fri Jun 24, 2016 9:44 am |
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Joined: Jun 19, 2010
Posts: 1600
Trade Rating: +4
Location: South Bucks
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Try the sensor first ... my 1.4hdi did that .. scared the sh*t out of me until I realised that the engine wasn't that hot ..
Realised it was the sensor when it started doing it before I'd even got out of the driveway!!!
Disconnect sensor, pull circlip out holding it in to housing, pull sensor and stick thumb over hole to minimise coolant loss, stuff new sensor back quickly, place clip, replace connector.
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| Down to just the 1.4 HDi. Cayman Green 2.0i CC sold. | |
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Posted: Fri Jun 24, 2016 12:22 pm |
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Joined: Jun 19, 2016
Posts: 12
Trade Rating: 0
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the heaters do blow hot air at me when i turn everything off. not sure its the sensor because it stays around 100-110 when driving normally and only starts overheating after 10 minutes of spirited driving
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Posted: Fri Jun 24, 2016 12:32 pm |
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Joined: Feb 16, 2010
Posts: 440
Trade Rating: +2
Location: Devon
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| thng33 wrote: |
| the heaters do blow hot air at me when i turn everything off. not sure its the sensor because it stays around 100-110 when driving normally and only starts overheating after 10 minutes of spirited driving |
flush the coolant and make sure nothing is jammed in front the radiator.
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Posted: Fri Jun 24, 2016 1:46 pm |
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Joined: Jun 19, 2016
Posts: 12
Trade Rating: 0
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left pipe coming from the radiator is slightly cooler if that matters. water level doesnt look like has gone down even though the needle has hit red 3 times now. i immediately turn it off every time, once the engine has been off for 10 minutes its back to ~110
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Posted: Fri Jun 24, 2016 1:47 pm |
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Joined: Jun 19, 2016
Posts: 12
Trade Rating: 0
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could be the sensor, there are laser that measure temperature right? if i point that at the radiator pipe how accurate would the reading be?
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Posted: Fri Jun 24, 2016 1:56 pm |
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Joined: Jun 19, 2010
Posts: 1600
Trade Rating: +4
Location: South Bucks
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Close enough .. or cheaper option is a thermometer in the header tank?
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| Down to just the 1.4 HDi. Cayman Green 2.0i CC sold. | |
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Posted: Fri Jun 24, 2016 3:59 pm |
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Joined: Jun 19, 2016
Posts: 12
Trade Rating: 0
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nope sensor doesnt lie, its overheating like s**t. ill flush the water but i dont think the problem lies there
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