It's making a very loud popping nosie like a shotgun when...


It's making a very loud popping nosie like a shotgun when trying to turn over Mechanic's Assistant: Where exactly do you think the noise is coming from? And how long has this been going on? Started today bought a new cran...

It's making a very loud popping nosie like a shotgun when trying to turn over Mechanic's Assistant: Where exactly do you think the noise is coming from? And how long has this been going on? Started today bought a new crankshaft position sensor installed it correctly it sounds like it coming from the engine and making very loud bang noise Mechanic's Assistant: What is the make/model/year of your car? 1996 dodge [ram 1500](/topics-ram-1500/) 5.9v8 Mechanic's Assistant: Are you fixing your Ram 1500 yourself? What have you tried so far? Everything I'm at a stand still trying to get it running I finally have spark and this is what it's doing Mechanic's Assistant: Anything else you want the Mechanic to know before I connect you? That's all for now

Automotive Expert
Hello and thanks for your question. My name is \*\*\*\*\* \*\*\*\*\* I will do all I can to help.

Thank you
Automotive Expert
Does it run at all? Could be a lean misfire causing that popping sound, try this, turn the key off, and spin the engine over with a socket on the crankshaft and a ratchet, does it feel normal all the way around, or does it have a tight spot in it that really is harder to spin through than the rest of the range of motion there. if it's got a real tight spot, could be internal engine damage. Also, did it shut off while driving? or just wouldn't start after sitting? Thank you.

Just won't start after sitting could the valves be stuck
Automotive Expert
I doubt it, you have any starting fluid? if so, spray some in the air intake in the air box, and see if it runs for a couple seconds then.

Ive tried that didnt work
Automotive Expert
It's got gas and fuel pressure correct? You have spark to the plugs right? Next is to check for voltage at the GREEN/ORANGE wire at one of the front [fuel injectors](/topics-fuel-injector-dodge/), should have power with key on. Do you hear the fuel pump buzz when you turn the key ON? should buzz for a couple of seconds, sometimes easiest with somebody in the truck and you put your ear to the gas filler neck with the gas cap off to hear if the fuel pump buzz when the key turns on.
Automotive Expert
Try spinning the engine over by hand a full 720 degrees to make sure nothing is locked up. Then if that checks out, I would check codes next, if it's not setting any codes, I would pull the plugs and start checking compression if it won't even hit with starting fluid, could be timing chain or compression issue. If it's got spark and compression should at least hit with starting fluid. Let us know what you find there,

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