Hi is there anyone who can help me with this awefull fault i am having with my car.
Whenever im travelling on motorways and get up to high speeds to 80mph and over my temp sensor soars up to maximum untill i drop off to a lower speed of 50mph and it settles back to normal.
However when i get back to 80mph same thing happens again temp senor soars then i start getting a loss of power in all gears forcing me to pull over.
After looking at the engine coolant levels it appears as normal with no signs of overheating.
After a brief stop the car will drive perfectly normal again untill i hit anything over 70mph then the fault constantly happens making it impossible to drive.
Ive called the RAC out twice and they are unable to find a fault even with the lap top attatched.
The 2nd RAC guy i saw said hes seen a similar problem on "VW" vehicles and suspects a possible water pump impellor slipping????
Ive also been to a garage and told them what was going on and they didnt have a clue what the problem could be.
So i am in a dilema to what it could be
I would greatly appreciate any advice on this fault if anyone has ever came across it before.