I just bought a Dodge Ram 1999 4wd v10 auto short bed.
The problem I’m having is when I’m driving down the road sometimes it will start to bog down no check engine lights it kind of sounds the more I press the gas the worse it bogs until I floor it then it feels like it starts getting full power I have no idea what’s going on. it seems like it’s missing when it’s in idle but I’m not sure I’ve never had a v10 before it drives good but when I floor it when it’s acting fine it doesn’t seem like it has much power like if I’m on a dirt road and have to give it gas it will start blogging down and not go? Any help will be much appreciated I’ve tried looking it up but to no success

i tried removing the catalytic converters and it ran worse then I removed o2 sensors (after removing the cats) and it ran better then before?

 

O2 sensors do age out...... if it runs better with 'em unplugged, time to replace them. Problem I had with my 8.0 was, it simply would not set a misfire code, even when I had a completely dead cylinder. (plug wire burnt in half.....)

Might wanna verify you are getting spark on all cylinders. May have a coil pack going bad, which can take out anywhere from two to six cylinders at a time.....

 

How would I check coil packs? All the plug wires look new but I did see one with a cut in it but I’m not sure

 

Grab a spare spark plug, pull the wire off a cylinder, stuff the spare plug into it, ground it somewhere, crank the motor. (might remove the fuel pump relay, so it doesn't start.....) Careful though, the coil packs pack a heck of a wallop, and if you have heart issues already, it can whack ya dead.

Another option would be, if you have sparkplug boot pliers, let the engine idle, and pull one wire at a time off the coil pack, but, not very far, and see if the spark will jump the gap. (should be able to actually hear it.....) Don't grab 'em with just your hands, or a non-insulated tool though. That can get WAY too exciting.

 

Lol I know I pushed down on a plug wire that had that cut in it the other day while it was running woke me up faster then black coffee But I pull the boot off about an in or 2 and see if it jumps? I’ll have to try that

 

And all your hair stands on end for a few days.

 

Exactly xD but I will try that when I get my new o2s in

 

Run it without 'em, see if its any better.

 

Yeah it ran better when I pulled them but I’ve herd it goes into limp mode or really weak but it seems to run fine but I’m not sure I haven’t drove it long enough after I pulled the o2 sensors I’ve herd it makes it run rich as well but i don’t know anything about o2 sensors

 

If the PCM doesn't get signal from the O2 sensors, it just runs off 3 dimensional tables stored in the PCM. It tends to run a bit rich, but, its not limp mode. Gas mileage suffers....... and it will set codes, (CEL on...) but, that's the extent of it.