Just got a 94' Ram 2500 4x4 8.0L V10. It sat for about 6 years and hadn't been ran since it was parked. So I changed the battery, belt, and that fun junk. No fuel pressure. So I dropped the tank to find that there was about 25 gallons of lovely old gas in it. I managed to drain out most of it but not all. And replaced the fuel pump since the old one had seen way better days.

Put it all back together, and fired it up(still with the remaining old gas) Just had to see if it would run before filling the tank again. Anyways my question is, it's running seemingly fine on the driver side cylinder bank, but none, maybe 1 if I'm lucky, are firing on the passengers side bank. I confirmed that because after letting it come up to operating temperature the driver side exhaust manifold was hot, and the passenger side I could still touch and it was just somewhat warm.

Any thoughts for what could cause this? I'm already going to be putting in some fresh 92 octane gas to help dilute the crap still in it. But I don't think I can fully blame old gas for making half the motor not fire.

The only other thing is, when changing pump the line for the Roll over valve broke and therefore isn't hooked up right now. Will that cause any harm? or is that something that could be bypassed completely and the charcoal canister gotten rid of?

Any and all help would be greatly appreciated. Thanks a million in advance.

 

Not sure what the firing order is, or how they are divided up on the coil packs... but, you have two coil packs on there, one deals with six cylinders, the other deals with four. If you have six cylinders firing, I would take a long hard look at the cylinders fired by the other coil pack, and see if you are indeed getting spark there.

Welcome to DF!

 

Is it throwing any code's?

One thing you could do but may be pointless is if you have access to a timing light (apparently not a rent-able tool) and check each wire on the passenger side, see if there is any spark. If there's spark the light will flash each time spark goes to the plug.

This is a good way to check for erratic spark or none at all, and on which cylinder's.

 

the coils all seem to be split across the motor, like one terminal goes to the driver side, one to the passenger. So I don't really believe it's coils but I'll look into that a bit more. I'm going to do plugs and wires on it since it's got 100K and I don't know if they've been changed before or not anyways. But I have a hard time believing that one half of the motors plugs are shot and the other half is okay. And i did pull one of the plug wires off the side that doesn't seem to be firing while the motor was running, it gave me one hell of a jolt, so at least 1 of the 2 coil packs seems to be working fine.

No check engine light, so I'd imagine no codes since it's OBDI. I do have a timing light so I suppose I'll have to check that out. Thanks for the tip.

 

So you have a 5 cylinder ram? How's the gas mileage? Lol sorry I just had to comment!

 

Don't know anything about the V10 - but is it FI? If so, maybe some injectors are plugged......?

 

Distributor, coil pack (The 4cy smaller one), plugs, wires, and injectors are all things i would check for. Old gas could have gummed up some injectors, bad wire going to the coil so it is not firing. just us process of elimination. From simple to complex

 

99Dodge318 yeah sorta lol. 5 or 6 cylinder anyways. If I had to guess I'd say pretty horrible since it takes like 3/4 pedal or so to wanna move.

gdstock it is FI, and injectors are something I was worried about. Any way to try to get them unplugged up while still on the truck? Or am I pretty much screwed into replacing them?

COL, it's got 2 coil packs, but the smaller 4cyl one I know is firing on at least 1 of the banks, because it shocked the heck out of me when I pulled one of the wires off it while running. The larger one I'm just assuming works at the moment since it seems that the driver side is firing perfectly fine.

It's got true divorced dual exhaust on it. and the driver side pipe really does sound like it should, the other side pipe it's not nearly as loud, or even quite the same noise. Plus the exhaust coming out on the drivers side is hot like you'd expect from a warmed up motor while the passenger side exhaust is only warm if anything at all.

 

Check the FAQ/DIY section for free downlaod service manual. I know on the 5.2 it it wasy to remove injectors. Pop out and celan with carb cleaner and replace O Rings. At least that would eliminate them as a possibilty. Old gas could have gummed them up.

 

I'll try to see if they're fairly easy to remove on the v10 and hopefully clean them out. Thanks for the tip