I replaced the Crank shaft Sensor and my Jeep still wont turn over.
Battery is fine, alternator is new. Someone said the engine seized. The engine never knocked or were never any weird noises before it quit. What could it be?
By "turning over" do you mean it won't crank at all? Or it cranks and just won't start?
To find out if the engine is seized, use a socket and breaker bar on the crankshaft pulley and give it a twist. If it's seized - you won't move it. There are a lot of different reasons for a "no crank" situation - bad starter, failed neutral safety switch, those garbage aftermarket alarms, cruddy battery cables the list goes on.
Search Jeep Grand Cherokee Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Jeep Grand Cherokee Experts