Process of elimination getting to me!

so I’ve always taken great care of my 2004 Dodge Ram 5.7 4x4. She’s a sweet ride but lately can’t seem knock this problem out. So it’s always had the check engin light on after running for about an hour or more driving then go off when I’m just short trip driving. So it recently started losing pullys again a/c pully went and apparently I couldn’t just replace the pully/clutch on that particular year so I’m told 2004 is on of those nightmares for engenirring. Put a bypass on till I got a used one radiator cracked so I got that off same parts truck. I decided to finally put everything all back together after I started getting a rough idle problem that has led to tons of dead ends with still no solution. Right now I’m still having some kind of limp mode going on with hard start no fuel type starts with random just die driving it or at stop/ idle pulling all kinds of o2 to ignition loss codes now I have recently replaced the fallowing plugs,coils,wires,crank sensor, cam shaft sensor, mass airflow,messed around with relays,pulled off throttle body cleaned it brand new always run system cleaners usually run usually plus fuel, ignition switch decided to put a180 degree thermostat in with radiator change new water temp sensor pvc valve, because I wasn’t sure cleaning it was good enough.Now here’s where I’m heading I was told on that year to replace the iac or tps it’s going to be crazy expensive because it’s a whole new throttle body and apparently bell housing because besides those 2 or a fuse box wtf else could it be I also just cleaned the intake air sensor it seems to definitely be get worse and weirder it like wants to stay running at shut off harder to start and I’m unemployed practically losing my house because I’m in a new town starting my own biz and carpentry is seasonal as hell here apparently grr. I really need to keep this to just this part at this point and get to work. I have the fuse pox from the parts rig I was thinking maybe start there then a throttle body he’ll if I know I’m stumped. Any advice would be greatly appreciated for this rookie dodge guy!

Welcome to RamForum.

Have you had the code(s) read? If so what are they? If you haven't, I'd recommend getting them read as it will help narrow down the possible causes.

I just cleared them because there was about 16 old and new. Just at orilieys having them read at the moment get right back with that! I also did the harmonic balancer to start with that bypass was totally not a nightmare had to shim the power steering as well until I finally got the new ac in what a **** show pos those bypass pullys are!!

Instead of shooting a parts cannon at it, you really should find a good diag tech and spend your money there. He can tell you what needs changed if anything at all and you can do the work to replace those parts. You will run out of money before you run out of guesses. Because a code comes up in the computer doesn't not mean that the part associated with that code is bad. It just gives you a jumping off point on where to start. Good luck.

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Well for me personally I want the peice of mind knowing those couple hundred dollars worth of sensors are just already dealt with it really wasn’t much the truck has over250,000 miles on it and when it runs it’s running very smoothly now it was definitely due for the little I have done! I do want a diagnostic tool though but the one I want is going to take some money for sure I don’t trust most machanic shops in my area over priced when I could just spend probably the same on most of it. I’m driving it after clearing codes there was 18 so I guess I have 2 left active and trying to get some drive time on it to pull anymore.

If the CEL come back on while you are getting some "drive time" on the vehicle, get them read. You don't have to pay for a deep diagnostic. Go to a local auto parts store (Like AutoZone) who will do it most likely for free or a LOT cheaper than a mechanics shop charges for diagnostics.

Then post up the code numbers here and we can help you sort it out from there.

Yep they wouldn’t clear them about 3 times I went there. He finally let me clear it tonight said come back in am and he will read them it came back on instantly of course. I can’t seem to get my codes off the odometer for some reason on this model. It’s always had that random misfire code after about an hour of driving so I’m sure that will still be there probably pick up some heat again too hard to start hasn’t been dieing past couple starts though. Seems to be staying running with ignition off and having trouble getting gas gage to respond most starts now weird stuff. I’ll get those codes first thing when they open back up.

So I’ve been pulling apart the harness underneath the dash because some ******* put a couple scab harness on it I’ve gotten them all out and had a little problem with my ground to battery currently heading to get new one here’s all the codes before harness were pulled after being cleared supposedly

To be honest, based on the codes you are giving (P0016, P0340, P0344) and the sensors you told us you have already replaced, I am guessing that you may have a loose timing chain or an intermittent crank sensor failure. With P0462, that seems pretty straight forward, the fuel level sensor (FLS) has a possible short to ground in the signal circuit or the FLS has internally shorted. You could also check your wiring to the cam, crank, and FLS for nicks and cuts that could be causing a ground if you haven't already.