1991 Nissan Maxima compression.

1991 NISSAN MAXIMA
15,000 MILES • 6 CYL • 2WD • AUTOMATIC
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BROOKS00
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car sat for to years after hitting a deer. replaced radiator.fired right up ran and drove fine other than a small lifter tick that went away and knock on acceleration. car seemed to normal acceleration power. later that night after car cooled off tried to fire back up and made a bad noise. Next day checked compression, no compression on #1 and 2 cylinder the rest have great compression. turned engine off with out valve cover to observe valve operation and did not notice noise. Head gaskets?
May 12, 2009 at 7:36 PM
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MHPAUTOS
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Hi there,

if you have no compression, you may have stuck valve, do a leak down test first to determine where the compression leak is, start here.

mark (mhpautos)
May 12, 2009 at 10:08 PM