Oxygen Sensors
Check Engine Light
2000-2005 Dodge & Plymouth Neons

How do you know if it is your oxygen sensor or your exhaust manifold gasket causing the check engine light to come on?

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2007-03-05 23:58:48
2007-03-05 23:58:48

u need to know what codes its reading go to auto zone and have it read for free

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The exhaust manifold needs to have a gasket in place to help seal the juncture between the manifold and the engine. After the gasket and gasket sealer are in place, tighten the bolts for the exhaust manifold. The exhaust pipe can then be replaced on the new exhaust manifold.

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have you checked to see if there is any broken bolt on the manifold, or worped manifold, burnt manifold gasket

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The manifold gasket is the same as the plenum gasket. The manifold gasket is a barrier between the manifold and the engine block.

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The year, engine size and if it is the intake manifold or an exhaust manifold gaskets would help.

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Intake manifold leaks will cause the engine to idle rough and get poor fuel economy. An exhaust manifold will have no symptoms other than the sound of the leak.

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If the valve cover gasket is leaking it will allow oil to leak onto the hot exhaust manifold where it will smolder causing smoke in the engine compartment.

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Where is the leak coming from. Most likely you will need to replace the exhaust manifold gasket which will require removing the exhaust manifold.

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If the exhaust manifold gasket is leaking the only fix is to replace it with a new one.

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there is no gasket on the exhaust manifold. i have a 93 escort lx wagon and i have a leak somewhere and i looked at the exhaust diagram at my local napa and it doesnt show a gasket. * Not sure which diagram you were looking at but there is DEFINITELY a gasket... Look up exhaust manifold on any popular car site and you will clearly see one.

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Exhaust leak at Exhaust manifold to head gasket or oring at exhaust manifold pipe.

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if it is just a blown exhaust manifold gasket it can ruin your valves, so replace it correctly and make sure everything is clean before putting on the new gasket

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A bad exhaust manifold gasket could do that.

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unbolt the head pipe then the manifold.

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No. which manifold gasket are you wanting to replace? Intake or exhaust?

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sell your van the studs for the maniflold are going to break and you most likely will have to replace head Between the exhaust manifold and the head is the manifold gasket. Where the exhaust pipe connects to the exhaust manifold is a manifold doughnut gasket.

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The intake manifold, head, and exhaust manifold must be removed to gain access to the gasket.


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