Question about 2004 Nissan Frontier

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Misfire cylinders 1-3 how can I clean them? do I

My car is nissan frontier 2004 4 cylinders and the problems is misfire cylinders 1-3 how can I clean them? do I have to remove some parts? what parts I have to clean? what cleaner can I use? nissan shop said me to replace intake manifold and they can make the job but it's very expensive.

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Hi, As you know that in engine repairs only a well experienced technician can do it because it is the heart of the car. If your engine is misfires than the piston is almosted ceased. Kindly don't hesitate to spend money, it is a very difficult job.
Remember one thing service your car only in a authorised center for a better engine performance and long life.
Thank you.

Posted on May 08, 2010

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Check the plugs condition. Check the high tension voltage leads to the plugs - measure the resistance of each lead in in turn (so as not to loose track of which lead goes on which plug). Generally 6,000 ohm is usual but it depends on lead length. However if there is a continuity fault the resistance will be very very high. Have the cylinders pressure tested. If you suspect an intake manifold leak check all vacuum leads feeding off it. If the leak is suspected at a gasket joint spray the suspect areas with WD40 releasing fluid whilst the engine is running. Releasing vapour will be sucked in and this causes the engine to rev more quickly. Sometimes just tightening the intake manifold bolts a quarter turn can sort out minor air leak issues

Posted on May 08, 2010

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