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03 Ram 2500 5.7 hemi wont start (Please Help!!)

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Old Aug 2, 2021 | 09:52 PM
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Post 03 Ram 2500 5.7 hemi wont start (Please Help!!)

I am looking for any help or advice, please and thank you very much. I bought my truck last year, 7 miles away from home the truck died at a stop sign. It took a little bit to get it started but it started and i was able to drive is for about 6.5 miles it was no smooth or any kind of fast accelleration and then it died and wouldnt start at all. I wasnt worried about it because i planned on replacing the motor anyways. I tried to get it in a shop to replace the engine, but no luck. So i decided to do it my self. Bought a short block, the only thing that got put back on the block is the intake, throttle body, and the power steering, and the wiring. Everything else that is bolted on has been replaced. Fuel pump is brand new as well. I can get the motor to turn over all day long, and all it does is sputter every 15-30 tunrs. Light, horn, radio, windows all work. I have cranked it a few times, as soon as i hooked up the battery and turned the key to the acc position the check engine light came on and did not go away. I would turn the motor over and the codes would be a evap, no rpm code and an o2 sensor. The second time i went to crank it over the code read high fuel voltage, the third time i turned over the motor the code read mass flow sensor code came on.
 
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Old Aug 3, 2021 | 09:51 AM
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Verify you are getting spark to the plugs. Test fuel pressure. Verify you are getting injector pulse.

Did you re-use all the sensors from the original motor? Chances are, one of them was going belly up, and you just moved the problem to the new motor.
 
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Old Aug 3, 2021 | 12:04 PM
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HeyYou, it has all new sensors installed. I was trying to not have this problem, with bad/old parts. How do i check for injector pulse?
 
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Old Aug 3, 2021 | 12:20 PM
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Need a noid light. You can "rent" them from your local parts store.
 
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Old Aug 3, 2021 | 02:37 PM
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Thanks ill give that a try
 
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Old Aug 4, 2021 | 08:33 AM
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I went to go and check my injectors last night and it got more activity out of the motor then I ever did. So I plugged the injector back in and then a couple more turns and it started up. Let it run for a couple minutes. Now it wont start up again.
 
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Old Aug 4, 2021 | 01:05 PM
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After i got it to start there was a fast paced metal on metal clicking happening. Could that be something from the transmission for sitting so long? If so is there a fix?
 
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Old Aug 4, 2021 | 06:28 PM
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Stomp the gas pedal to the floor, hold it there, crank the engine. See if it starts. (if it does, take your foot off the gas. )
 
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