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I have a 1999 Intrepid with a 3.2L and it was running fine when my daughter parked it, week later it acts like the battery is bad or bad connection. Tested battery, it’s ok, replaced connections, still nothing. Engine acts like it is either out of time or vapor locked, Have to hook battery charger to it to get it to spin over consistently. Pulled timing cover off and it was perfectly in time. What would make it act like it is out of time but confirmed its not?
 

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bad fuel pump? might want to check the fuel pressure. you can hook up a pressure tester to the valve in the left side of the fuel rail. it should be at or near 56psi at all times (even after months of sitting).
how many miles on the car?
 

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bad fuel pump? might want to check the fuel pressure. you can hook up a pressure tester to the valve in the left side of the fuel rail. it should be at or near 56psi at all times (even after months of sitting).
how many miles on the car?
Fuel pump sounds like it is working but have not checked fuel pressure. Car has 127K miles on it
 

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(Assuming engine is not starting or running at all)

Other possibility: Bad cam or crank position sensor. If replacing, might as well replace both - parts from dealer preferred for those. Sometimes a bad cam position sensor will prevent it from running, but it will start and run off the crank position sensor with the cam positiin sensor disconnected (if so, then the cam position sensor is bad).

Verify that the 5 volt sensor voltage is good. If not, disconnect the a.c. pressure transducer and see if it starts then. The a.c. pressure transducer is famous for failing shorted and pulling the 5 volt sensor bus down so the engine won't run because no 5 volts to engine sensors.
 
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