Hiya folks.
Firstly I have a bit of experience with Peugeots as well as the ES9J engine - which I love, and I have Diagbox and have scanned and tested all components that are accessible. No faults. . This is a low k manual coupe that I just picked up. This problem has me stumped, so I'm reaching out for some help.
Here's what happens:
From cold the car will slowly come up to temperature (90C) at idle. On the road at highway speed it drops to and sits at 70 degrees C.. In stationary traffic it rises to 90 degrees C. Never any hotter. Then it goes back to 70 degrees C as I drive. At idle in the shed it comes up to 90 degrees C then the fans click in. It stays stable at 90C.
My guess was thermostat.
I pulled the thermostat (a bit of a task!), and while it is not quite closed at room temp, it opens when I boil it and closes when I cool it. Sparesbox supplied the wrong replacement thermostat so I put the old one back in. No change.
I have un plugged/ cleaned and reconnected all the sensors around the thermostat /coolant manifold.
The coolant hoses are all hot to touch (ouch!)
I have drained and flushed the coolant. The interior heater give out heat fairly consistently as far as I can tell.
I'm at a loss! Is there another thermostat somewhere else on the engine or what else could it possibly be?
Thanks for reading, I hope you can help.
Firstly I have a bit of experience with Peugeots as well as the ES9J engine - which I love, and I have Diagbox and have scanned and tested all components that are accessible. No faults. . This is a low k manual coupe that I just picked up. This problem has me stumped, so I'm reaching out for some help.
Here's what happens:
From cold the car will slowly come up to temperature (90C) at idle. On the road at highway speed it drops to and sits at 70 degrees C.. In stationary traffic it rises to 90 degrees C. Never any hotter. Then it goes back to 70 degrees C as I drive. At idle in the shed it comes up to 90 degrees C then the fans click in. It stays stable at 90C.
My guess was thermostat.
I pulled the thermostat (a bit of a task!), and while it is not quite closed at room temp, it opens when I boil it and closes when I cool it. Sparesbox supplied the wrong replacement thermostat so I put the old one back in. No change.
I have un plugged/ cleaned and reconnected all the sensors around the thermostat /coolant manifold.
The coolant hoses are all hot to touch (ouch!)
I have drained and flushed the coolant. The interior heater give out heat fairly consistently as far as I can tell.
I'm at a loss! Is there another thermostat somewhere else on the engine or what else could it possibly be?
Thanks for reading, I hope you can help.