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Message: <blockquote data-quote="walio123" data-source="post: 106147" data-attributes="member: 9827"><p>The easiest way to find out what happened is to do a compression test as injectors work normally, measure the compression into all cylinders,should be same with a tolerance of 14-20psi.If the compression is the same everywhere ... there may be only damaged valve seals If in a one cylinder the compression is very low and in the others it is good, then there is a burnt valve (I have seen a burnt piston). If in two adjacent cylinders is low and almost the same is a break in the head gasket and so on...</p></blockquote><p></p>