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Missfireing started missfireing sudenly whilst driveing, replaced centre muffler, leads, plugs

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Hi,

If you have put new spark plugs and spark plug wires in it you might have a vacuum air leak, let it warm up and sit idling in a quiet area and put it in park and set the parking brake, open the hood and listen for a hissing noise coming from the engine area, maybe have a helper idle up, not rev the engine to see if you can hear anything, If you find the leak go get some replacement vacuum hose from auto parts store. you may have also gotten a bad batch of gas, run it nearly to empty and go get some good ga$. If it keeps it up I dont recommend driving it like that, take it in and have them put it on the computer to see whats the matter.

Jm

Posted on Jul 15, 2008

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Hi,

Cleaning plugs is not enough you will have to replace them. Ensure that they are the correct type of spark plug for the engine also, Don't try and skimp to save money because it will cost you alot more further down the track if the incorrect plugs are fitted. Get your High Tension Leads(Spark plug leads) checked as well,
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