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31st July 2014, 11:56 | #11 | |
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Hi Muhammad,
Thanks for the history. So your engine was overheating during town driving. I bet that the problem was the very common one of your radiator fan not working on slow speed. This can be restored with an inexpensive new resistor. Quote:
If he hasn't thrown your original away, claim it back! It can be repaired cheaply. Simon
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31st July 2014, 12:11 | #12 |
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If the fan has been replaced and it works, that problem should have been cured.
If that is indeed the case, it sounds like the thermostat is stuck closed. If it is a turbo model, there should be one at the rear of the radiator in a plastic housing at the bottom of the radiator. If not a turbo, it sits at the water inlet of the engine. It is further possible that you might have two thermostats by mistake. If any one of them won't open, the symptoms you describe will happen. |
31st July 2014, 12:51 | #13 |
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... Of course you are quite correct when compared to the 1.8 4 Cylinder, but not the V6's....
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31st July 2014, 13:00 | #14 |
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Well not unless you count all the time in the shade at the petrol stations....
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31st July 2014, 16:30 | #15 | ||
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Quote:
Furthermore, I understand that the main topic here has been engine heating but I'd be grateful if I could get help on another issue. Basically, the car has begun to feel very sluggish, getting off in first gear requires a lot of revving and the reason my mechanic gave is that "its not firing on all cylinders so its not using all its power". Now I'm no mechanic so I would love for anyone to tell me what on earth that means and more importantly, a solution Thanks again guys, this is really the best advice I've received on these issues Quote:
This seems like another possibility so at the moment, between Simon and yourself, I've got two things to look at - the fan not working at slow speed and the thermostat. I'm gonna have a chat with the mechanic about what can be done, but I'd also love your advice on the "not firing on all cylinders" problem mentioned above. Thanks buddy Last edited by mmirza16993; 31st July 2014 at 16:32.. |
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31st July 2014, 17:56 | #16 | ||
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Quote:
We'll tackle the fan first, then move on to the thermostat if necessary. Test number 2: When you look through the radiator grille do you see this: This is the silver resistor; a rectangular block with a wire at each end. Thanks to Arctic for the excellent photograph. If you haven't got one, you will see this: That's another of Arctic's photographs. Quote:
Simon
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"Whatever is rightly done, however humble, is noble." Sir Henry Royce. Last edited by SD1too; 31st July 2014 at 18:09.. |
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31st July 2014, 18:10 | #17 |
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It is actually pretty easy.
If you can switch the fan on, and it works, the engine should not overheat. If it does, even with the fan on, the problem is a thermostat stuck, or a head gasket blown. the test with the demist is for a normal working system, but is of absolute no value here. Just switch the fan on, and the temperature should stay in check. the misfire can be lack of fuel and lack of spark. Check the fuel filter housing, they can come undone and deprive the engine of fuel (it just returns to the tank). It is situated under the back seat left side and can come undone. Worn spark lugs can also give you misfire, as can coils and faulty timing. Eliminate the fan first, just leave it on and see what happens. |
31st July 2014, 19:04 | #18 | ||
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Quote:
I did the first test you mentioned, the demister one and the fan was not running when I looked through the radiator grille. I also did the second test and there was a silver resistor present. Does this mean that there is a problem with the thermostat or the fan? Also regarding the last point about firing on all cylinders, the car does have an ignition problem. You have to press the ignition for maybe 2-3 seconds at times. Any idea what the cause for this may be? PS Thank you so much for the pictures, they really did help! Quote:
Regarding the misfire (I'm assuming thats to do with the ignition problem), how can I go about checking those things at home because I'm beginning to lose faith in my mechanic! Thanks for the support fellas |
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31st July 2014, 19:41 | #19 | |||
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Quote:
Quote:
Quote:
Simon
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31st July 2014, 19:52 | #20 | |
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Quote:
resistor for? |
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