Have you checked the gauge/sender unit yet? You may as well, to rule them out as the issue. It's also free to check them and would take about 5 minutes
READ THE F&@#!N INSTRUCTIONS BEFORE YOU DO SOMETHING
I had to learn this the hard way. 3 weeks and endless of hours searching and asking and $350 later.....I learnt
It was something very, very stupid on my behalf.
On my first experience where it overheated I had a broken thermo fan so I bought one from supercheap and installed it and this was the start of my highway overheating issues.
Turns out I installed the thermo fan the wrong way, as in the fan was spinning in the wrong direction causing air to move from HOT engine bay to the outside of radiator to environment, which in turn when driving on highway would cause a neutral airflow resulting in the car overheating.
I read this today after being pissed off, fed up I decided to use the search feature for the 13th time and search overheating issues. I came across FastFwd post in a thread.
Originally Posted by FastFwd
I had the same issue a couple years back but i found out what it was shortly after. I was doing work on installing a new radiator and i wired up the fan the wrong way so it spun in the opposite direction so when there was enough wind force the fan and the wind would cancel each other out but it would only happen on highways/freeways when doing 90-100. I doubt your having the same problem but i thought i would put in my two cents. Outerwise get your garden hose and undo the top radiator tube and just give it a good flush for 5 mins and if you've already had a service on it two years ago then get a new thermostat.
Otherwise dude your welcome to borrow my stock radiator to try and resolve the problem. Your in perth hey.
So the light bulb upstairs switched on and I ran and grabbed the box for the fan and read the instructions. "To change the fans direction change the polarity of the connection" so I initially had it pos-pos and neg-neg as in any electrical connection, I changed it to pos-neg and neg-pos and VWALLAH
No more overheating, I had initially made the same mistake as FastFwd in his post.
So after a new radiator, thermostat, thermo fan and hose kit the issue is fixed because of my stupidity.
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