Niall_G
Established member
Mrs_G's Doblo is currently being repaired at my local independant garage.
While doing her regular run (Wellingborough, Manchester, Liverpool, Coventry, Milton Keynes) Mrs_G noted that the temperature gauge was heading for the red. She had done about 100 miles, cruising at about 65mph.
She called me and I got her to check that there was no water dripping out of the engine compartment, that there was no steam when she opened the bonnet and that the heater blew hot air. All OK. So there must be water in there.
The RAC attended and were at a loss. They followed Mrs_G for about 20 miles as she aborted her run and headed for home. The temperature was ok as long as she kept the speed down to below 60mph.
The next day I took the van out for a test. Sure enough all was OK at low speeds but as soon as I made the engine work hard (90mph for a few miles) the needle headed up into the red.
When checked there seemed to be very little pressure in the cooling system so a new expansion bottle cap was obtained and fitted. The subsequent test drive showed no improvement. When I stopped both fans were spinning but very little heat was being blown out - the radiator was cold.
I suspect the thermostat has failed and have obtained a new one £53 + vat !!
More on this when we get the van back on Monday.
While doing her regular run (Wellingborough, Manchester, Liverpool, Coventry, Milton Keynes) Mrs_G noted that the temperature gauge was heading for the red. She had done about 100 miles, cruising at about 65mph.
She called me and I got her to check that there was no water dripping out of the engine compartment, that there was no steam when she opened the bonnet and that the heater blew hot air. All OK. So there must be water in there.
The RAC attended and were at a loss. They followed Mrs_G for about 20 miles as she aborted her run and headed for home. The temperature was ok as long as she kept the speed down to below 60mph.
The next day I took the van out for a test. Sure enough all was OK at low speeds but as soon as I made the engine work hard (90mph for a few miles) the needle headed up into the red.
When checked there seemed to be very little pressure in the cooling system so a new expansion bottle cap was obtained and fitted. The subsequent test drive showed no improvement. When I stopped both fans were spinning but very little heat was being blown out - the radiator was cold.
I suspect the thermostat has failed and have obtained a new one £53 + vat !!
More on this when we get the van back on Monday.