Renault Scenic - Faulty Coils Causing Warning Light(Including General Info)*fixed* - Page 6 - Renault Forums :: Independent Renault forum

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post #26 of 121 (permalink) Old 15th October 2007
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Hi John - have you gone through the usual checks to see if the engine is firing on all four cylinders. Are th symptoms wose when the engine is warm or cold
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post #27 of 121 (permalink) Old 15th October 2007
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Hi Thanks for the response.
According to the Mrs who drives the car its when its warm. I did not do any further checks to ensure that its firing on all four cyclinders as I replaced two coils earlier this year and my assumptiom was that it might be one of the last two coils despite no warning lights. I had them as spares as I had bought a full set so thought I had nothing to lose by fitting them. Am I right in thinking that if it was mis firing then the warning light would come on?

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John
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post #28 of 121 (permalink) Old 15th October 2007
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Hi John - if you are satisfied the plugs and coils are OK - check the TDC sensor - if that is OK it could be a duff inlet temperature sensor. You could try some injector cleaner in a tank of fuel and see if it helps
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post #29 of 121 (permalink) Old 15th October 2007
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Hi

I have already replaced the TDC sensor and the injector cleaner in the tank so i'll take a look at the inlet temp sensor, is there any specific test that can be done. Is it just a thermistor that can be measured with a meter?

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post #30 of 121 (permalink) Old 7th November 2007
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After having Me Renault replace 5 coils I had a sixth go last weekend so I replaced the whole set myself last weekend at a cost of 38 for 4 bought on Ebay with 2 year g'tee. My question: if there is a chance it's the engine cover causing these to fail by causing them to overheat, is it worth leaving the cover off? What function does it serve? I did find that the two front lugs had been broken off so it's loose at the front anyway - Renault must have done that because they're the only ones who have worked on the car previously.
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causing , coils , faulty , general , infofixed , lightincluding , renault , scenic , warning

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