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Dan
Dan, Technician
Category: Dodge
Satisfied Customers: 24582
Experience:  2 Year Auto Diploma and Database Access
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2000 Ram 1500 randomly wont start. Cranks but wont turnover,

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2000 Ram 1500 randomly wont start. Cranks but wont turnover, feels like a fuel pump issue. Pulled codes P0340 and P1391. Any thoughts?
JA: Have you checked the fuel supply? And are all the spark plugs working?
Customer: Almost a full tank, plugs and cables are fine.
JA: Are you fixing your Ram 1500 yourself? What have you tried so far?
Customer: Have not tried anything yet.
JA: Anything else you want the mechanic to know before I connect you?
Customer: Truck runs fine when it does start, just don't confidently know if it will restart when I need it to. As far as the fuel pump, the gas gauge needle is all over the place and sometimes stays at the EMPTY position even with a full tank.

Hello, my name is ***** ***** I'm here to help get your problem solved.

What engine do you have? Did check engine light and starting problem happen at the same time? Thanks.

Customer: replied 2 months ago.
5.9, Yes

This would either mean the camshaft position sensor or crankshaft position sensor has failed, it is common to replace both at the same time which is what I would recommend. Here are replacement instructions, let me know if you have questions. Thanks.

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https://www.dropbox.com/s/kti9g2uz6149o7r/d1.pdf?dl=0

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https://www.dropbox.com/s/fy73rfxay84vt2v/d2.pdf?dl=0

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https://www.dropbox.com/s/fmw2yqn84zvg0ff/d3.pdf?dl=0

Customer: replied 2 months ago.
Thanks! Why is the this issue random?

Usually when components start to fail problem starts out as intermittent then as it gets worse it would be a no start. The fuel gauge issue most likely means the fuel level sending unit is failing but to know for sure you would need to check resistance of sender circuit during problem, if resistance is different when gauge isn't working this would prove sender has failed. That could be hard to test since it is intermittent. Let me know if you have more questions, thanks.

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