2nd Generation Dodge 24 Valve Powertrain

My 1999 2500 engine is surging while driving down the road. I recalibrated the APPS, which seemed to help, but 5 days later it is doing it again. Is the APPS going out or is there something else going on?

Got my injectors in the mail Monday. They didn't come with crossover tube o ring. I think it's best to replace them right? I don't believe I should reuse the old ones?

I'm not to sure where to place this post as it deals with a company which many of us have dealt with in the past. I've attached my Google review of Auto Computer Specialist (ACS) below as I feel our community needs to know about how terrible the customer service is with these people. I'm not sure if there was a recent change in ownership or management but it has been beyond childish. To the point they are claiming via google reviews I was never a customer and must be mistaken. See attached photos, I have also posted in my original review. All I wanted to do was speak with the owners about the professionalism of Dominic who is the front desk person at ACS. If …

Hello, I’ve been trying to chase this rough idle issue for weeks now. My truck is a 1999 2500 with an s362, edge juice with attitude, bd 3 piece exhaust manifold, 200hp injectors (don’t know the brand, of size of holes or how many of them). I have other non power train parts but those are the ones that I can think of off the top of my head. My issue started after I put in 200hp injectors used that I bought from a reputable person and I did not get them pop tested unfortunately. I properly bled the fuel system and it started right up. I noticed immediately that it had a rough idle and stutter that was really mild that you really had to listen for. You could hear …

Need some help, I just put a boost gauge in the truck and I noticed it’s only making 5-10psi. The RPMs are near 2k to hit 10 psi. The turbo sounds like it’s spooling like it should, I checked for boost leaks but I couldn’t find anything out of the ordinary. I know these trucks aren’t meant to be fast but it shouldn’t be as slow as it is now.

This morning the wife took her truck to drop off some cayacks to my daughter and she is gone for about 10 minutes and she come back telling me there is white smoke coming from the exhaust. I got take a look, start the engine and sure enough a notable plume of white smoke (steam) is coming from the exhaust just idling. I immediately turn the engine off, pop the hood and open the oil filler cap and the crank case is pressurized slightly as I can hear the pressure escape when I removed the cap. (I think this is a secondary issue of mud daubers clogging up the crankcase vent tube as the truck sets 97% of the time) I pull the dip stick and there does not appear to be evide…

Ok, so I recently bought a 99 24 valve Cummins. When we purchased it, it needed front brakes rotors and calipers. Also, the rear axle seals were leaking so we change those and the rear drum brakes and drums. When we got all done putting the brakes on front and back, we bled the system properly. When we took it out for a test drive, the brakes were extremely spongy and I could press them almost all the way down to the floor. After doing some research, we ended up replacing the master cylinder. That did not fix the issue, so we also replaced the hydro booster. After bleeding both the power steering and the brake system, we took it out for another test run. At firs…

Can the data link wires be spliced or replaced with regular automotive wire provided the connections are soldered and heat shrink applied?

I popped my hood recently and found the vacuum line that runs from the firewall to the vacuum pump just laying there...still attached only to the firewall fitting that I previously replaced. On closer inspection of the vacuum pump side where it is supposed to be connected I found that the rubber 90° elbow that receives it has now degraded to the point of failure. I've been looking online for a replacement rubber elbow but can't find anything specific to my truck...only come across HELP kits with several generics and ones that specifically fit Volvos and Mercedes. They all look like they might work OK but can't be sure. I'd really rather have the exact repl…

I would like recommendations for some upgrades. Now that I have my quadzilla and the exhaust fell apart yesterday, I would like to upgrade everything from the tailpipe to and including the turbo. Plans include pulling the occasional 10k pound trailer (rare) and my daily driver. I do NOT want a loud exhaust at idle or old-man cruising. Budget for turbo and exhaust is in the $1500 range, though less is better! 409SS exhaust preferred due to lots of salty roads where I live. Currently have HY35. Stock injectors, am certainly interested in some upgrades nozzles in the future - like around Christmas time.

I know most people run pennzoil, amsoil, or redline. I’ve ran royal purple for the past few years but I decided to give the valvoline brand a shot. The part numbers for mopar are on the bottle. Been driving for 8k so far and been good with daily driving and towing, trans temp seems be run the same as royal purple. Shifts smooth. Don’t know how it compares in the cold yet, but I don’t think it’ll be a problem.

Okay so I purchased this 2001 6 speed in January. Well first week of March it caught in fire. Don’t know the cause of it. Engine related. I replaced every single sensor with a 2002 parts truck I had. Replaced both ecm and pcm wiring with the ecm and pcm off of that 2002 into my 01 to make sure everything would be happy. So I have a complete 2002 engine bay in my 01 electronics wise. I have a NO BUS on my cluster after the mileage flashes 3-4 times. I have unplugged the firewall plugs and wiped them off. I have unplugged the pcm connectors and wiped them off. I have even gotten another 2002 ecm and plugged it in with same results. I have also tried the 2001 pcm with the sa…

Last November my original LP and IP failed. Both were replaced at the same time. The LP was a Napa stock replacement. It failed when I got home from a 900 mile trip. I took it to a shop and they diagnosed the LP failed. When I got it back with a new LP and pressure gauge, the LP failed after 2 weeks. I took it back to the same shop, it's under Napa's warranty, they replaced the LP again. Got it back, 2 weeks later the LP failed. Being fed up with the Napa LP dying, I researched online on aftermarket pumps. I settled on the FASS 95gph mounted close to the fuel tank. Got it started and running great. This past weekend, I drove it to pick up a heavy load of wood, th…

1999 Cummins 24 valve , quadzilla , 100hp injectors, nv4500, air dog 150 when I try to start my truck with key half the time it will fire right up other half it will turn over for ever and won’t go . dont believe it’s a prime problem as I checked for leaks and made sure everything was tight , you can turn truck off for half a second and try to start , just turns over but if I roll start it , it fires right up no problem ??????? cleaned all batt cable ends ,and grounds help please it’s geting annoying

Quick question for the experts! Currently working on bleeding my fuel system after installing a new VP44 and some injectors (all from DAP). I've bypassed the relay on my FASS165 because currently i'm unable to bump start the truck with my wiring harness being removed. While having it bypassed I am able to get fuel to flow out of the #5 injector line but that is it, I cracked the lines on #1, #3 as well as the #3 line that connects to the VP also. Does the VP have to be turned over in order to see fuel flow to the other injectors? In my head it makes sense this is the case but I'm looking for input, I hope to have my harness installed tomorrow and maybe turn th…

i just put a resistor in the temp line and now it shifts into overdrive and i get converter lockup. ? is there any adverse affect by leaving it with out changing the sensor and add a temp gauge in pan.should i change it any way and why in your opinions. thank you

Is fluid supposed to accumulate in the transmission solenoid that is attached to the xmsn housing? I have attached the diagram of the connector which plugs into this solenoid, I have cleaned out the plug a few times but fluid keeps re-appearing. Just seems weird that have fluid in a electrical connector. the Main 8-plug connector attaches to the solenoid in question. I did some quick searching and could not find out any information on if this is/is not normal.

So, basically what the title says. I'm interested in mixing and matching bits from a later gen sending unit, in my 2nd gen's. I'm not running any power mods, and lately my fass drp has had intermittent defueling at highway speed. Continued after changing fuel filters. Truck has 370k+ miles on it, big stock, the most recent 150k have been mostly highway.

Ok guys messin with the nv4500 some more and noticed that when the 2nd gear shift collar is slid in to 2nd gear it has alot of movement meaning it is easy to move back to the edge of the teeth on the 2nd gear is this normal ive serched for answers or videos and cant find the answer and would like to know before i put the top cover on

Truck revs up on its own only when under 1000 rpms. When at a stop sign or light it revs from about 800-850 but I think I’ve seen it spike as high as 1000. Code reader shows no codes but key trick shows apps voltage too high. Not sure if it’s the apps though because it’s a timbo and it’s worked great for a few months. And scanner shows throttle at 0% when it revs up.