03/09/2026
2011 Jeep Patriot β Running Rough and Hard to Start
This Patriot came in running rough and hard to start.
It sounded down on compression in one or more cylinders, so we ran a combustion gas test on the cooling system. It came back positive, and the engine oil was already turning milky from coolant getting into it. A compression test read between 115 and 135 psi, but there was a large amount of water in cylinders 2 and 3 being pushed out during the test.
That all points to a blown head gasket. This one will need either a replacement cylinder head and gasket or a replacement engine. We will talk the owner through the options.
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Call the team on 9743 5147
Melton Automotive, 10 Holland Drive, Melton
Mon to Fri, 8am to 5:30pm