Any Peugeot experts? Need some help please
Discussion
I have a 207 SW 2010 Diesel.
Please tell me. My car is parked overnight and obviously cold, I start it up and leave it running for 1 hour, should the temperature gauge start to move up? Mine stays at Zero? Because of this, even with the heater turned to Max its still barely warm.
The strange thing is, once I run the car and it's in actual motion, after about half an hour the gauge works and the heater works as it should.
I have been to my Mechanic Twice and he said it was the Guage sensor. He then replaced it and said it works, it still did not work so he replaced it again as he said the new sensor was faulty, it still doesn't work!!??
I have repeatedly said could it be the thermostat but he is convinced it's the sensor. Its driving me mad...Any ideas please????
Please tell me. My car is parked overnight and obviously cold, I start it up and leave it running for 1 hour, should the temperature gauge start to move up? Mine stays at Zero? Because of this, even with the heater turned to Max its still barely warm.
The strange thing is, once I run the car and it's in actual motion, after about half an hour the gauge works and the heater works as it should.
I have been to my Mechanic Twice and he said it was the Guage sensor. He then replaced it and said it works, it still did not work so he replaced it again as he said the new sensor was faulty, it still doesn't work!!??
I have repeatedly said could it be the thermostat but he is convinced it's the sensor. Its driving me mad...Any ideas please????
volante5767 said:
Thanks for the quick reply Trevor. What gets me is I've been using the same Mechanic for years and he has a great reputation and a ton of experience? Why hasn't HE diagnosed it, he's usually brilliant, I cant get me head around it?
I can only guess that he might have changed the thermostat on his first attempt, and it didn't cure it.Faulty new part is possible, or he put the old one back in by mistake?
I'm just guessing.
From the symptoms you've described above I'm sure any tech would go for thermostat first.
FWIW I recently had this on madam's early petrol 307.
Early ones had an alloy casting bolted to the engine with a plastic 'nose' (containing the stat) held onto its front with two bolts.
Top hose pushed onto this nose. Easily accessible & literally a 10 minute job.
Unfortunately the alloy housings corrode at that joint & leak - no matter what you do to it - & on refitting ours did just that.
I eventually gave up on it & replaced it with the later plastic complete housing - which is much the same as the 207 & comes with stat & sensor - & that involves quite a bit of dismantling just to get at it!
Early ones had an alloy casting bolted to the engine with a plastic 'nose' (containing the stat) held onto its front with two bolts.
Top hose pushed onto this nose. Easily accessible & literally a 10 minute job.
Unfortunately the alloy housings corrode at that joint & leak - no matter what you do to it - & on refitting ours did just that.
I eventually gave up on it & replaced it with the later plastic complete housing - which is much the same as the 207 & comes with stat & sensor - & that involves quite a bit of dismantling just to get at it!
Edited by paintman on Sunday 12th February 11:32
Sounds more like the water pump is on the way out.
It's common for these to have air locks, especially if the stat has been replaced. There are 2 bleed nipples, one on the thermostat housing (above the gearbox), and one on the top pipe going through the bulkhead. If you remove them, they should be full of water, not air.
The thermostat is an easy replacement job, but in my experience (I have many of these in the fleet), doesn't cause issues.
My advice - check the bleed nipples, replace the stat, replace the water pump. If you can be bothered.
It's common for these to have air locks, especially if the stat has been replaced. There are 2 bleed nipples, one on the thermostat housing (above the gearbox), and one on the top pipe going through the bulkhead. If you remove them, they should be full of water, not air.
The thermostat is an easy replacement job, but in my experience (I have many of these in the fleet), doesn't cause issues.
My advice - check the bleed nipples, replace the stat, replace the water pump. If you can be bothered.
volante5767 said:
No, I dont always leave it running, just now and again due to the cold weather like most other people.
The reason I ask is most handbooks tell you not to do this, and that you should drive away ASAP - the car gets up to temperature a lot quicker when in motion, and that's much better for it, since most engine wear occurs at cold.As for the issue, thermostats sticking open is a fairly common fault so I would agree it's that.
additional checks to see if its the Thermostat
Does the Gauge fall towards cold, once the car has got to its 'normal' operating temperature, for instance on a cold day at a steady motorway speed, with the Heater Blower 'on'. If the gauge remains steady, your Thermostat is working as it should.
Is the top hose, from the stat to the rad, warm before the engine reaches operating temperature. If so, it's faulty
Note: be cautious about buying a new stat, the last one I bought (a branded item), its sealing ring could only be described as pathetic, much smaller than the original, and definitely not adequate. Thankfully, my old seal was in serviceable order, so I used that instead. I was quite appalled !
Does the Gauge fall towards cold, once the car has got to its 'normal' operating temperature, for instance on a cold day at a steady motorway speed, with the Heater Blower 'on'. If the gauge remains steady, your Thermostat is working as it should.
Is the top hose, from the stat to the rad, warm before the engine reaches operating temperature. If so, it's faulty
Note: be cautious about buying a new stat, the last one I bought (a branded item), its sealing ring could only be described as pathetic, much smaller than the original, and definitely not adequate. Thankfully, my old seal was in serviceable order, so I used that instead. I was quite appalled !
Gassing Station | Home Mechanics | Top of Page | What's New | My Stuff