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300/66 Series General Forum for the Volvo 340, 360 and 66 cars |
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360 glt pinking and running onViews : 1078 Replies : 2Users Viewing This Thread : |
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#1 |
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can any body help.my 1984 glt has just suddenly started to pink and run on after ignition is turned off.strange thing but when you floor throttle at up to about 2500 rpm no pinking. pinking only starts at about 3500 rpm when pulling hard.halfway through tank of petrol that is was running fine on,and have checked all settings,replaced plugs etc etc etc.no air leeks and ig timing ok.car also has BROCQUET DEVICE FITTED.Car is a bit jerky at slow speeds and sounds different,and is very ritch on tickover.Help please,TONY 360 GLT.Thanks.
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#2 |
Forum Support Team
Last Online: May 28th, 2024 10:43
Join Date: Jan 1970
Location: Glasgow, London
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It might be to do with the mixture. is the throttle butterfly electrical clicky thing set properly. I'm sorry I don't know the correct technical term for it. Check that it click's just as the throttle is moved from shut to open.
If that is OK, then check the continuity. The middle terminal is common and one side will connect when the throttle is closed and will disconnect when the click occurs. The other side should connect when the throttle is fully open. You won't hear a click on that side, at least you don't on mine. Only other things that would cause an over rich mixture is a worn air volume meter, where you adjust the mixture. That's expensive to replace. Mine needs doing next year as I'm only getting 2.5% CO at idle with the screw all the way out, but I'm holding off as long as possible. Hope that helps |
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#3 |
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Sounds like a leaky injector. Injection cars should not run on after switch off, the fuel should not flow atall stopping the engine dead.
Again pinking can easily be caused by over-rich mixture again caused by the leaky injector. Don't forget to check the cold start injector also. I assume you are running Super plus petrol or have a unleaded conversion. |
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