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My 2006 Liberty has 111000 miles and has been very well maintained. Yesterday the engine began knocking. I pulled over, checked all the obvious issues and found nothing. After about 30 minutes it started again. Today, I was doing 50 mph when I heard the knocking again. This time I began losing power and eventually the Jeep died. I towed it to my office. Here's the weird thing. When I try to start it, the starter engages, the serpentine belt starts turning but the engine is not trying to start. The starter was changed about a month ago as was the battery. I have people telling me it's the timing chain, but I have one guy who's done work for me before telling me it's the MAP sensor. I really don't know what to do next. I pulled the MAP sensor and will buy a new one tomorrow and try that, but after that I'm stumped. Any ideas?
When I turn key fan and belt engages. I can hear starter. No ignition. No warning lights. Just won't start. Was driving around 50 mph when I lost power. When I stopped engine died. Thinking it's the timing chain or the timing sensor. Anyone else with this problem. Jeep was running fine until today. Fluids okay. Nothing leaking.