RedDodge
Junior Member
- Joined
- Nov 6, 2017
- Posts
- 9
- Reaction score
- 2
- Ram Year
- 2000
- Engine
- 5.9 Magnum
Hello all, I have been a long time reader but this is my first time posting.
I have a 2000 Ram 1500 with a 5.9L Magnum engine. The truck is a 4x4 automatic trans with 214XXX miles on it. It will start up and idle just fine on the initial start-up, but as soon as I start driving down the road it will bog like it is starving for fuel. When I come up to a stop the RPMs will drop to anywhere between 300 and 500 and then shoot back up to regular idle at about 650 when I come to a complete stop. Recently, it has also intermittently started backfiring out of the manifold under load, however it doesn't always do this.
I have replaced the TPS, the IAC, the MAF, the throttle body, redone all of the gaskets on the manifold, including the plenum, also replaced the water pump and thermostat while I had it torn apart. It has a brand new cap, rotor, plugs, wires, and ignition coil as well. I will be replacing the O2 sensors as soon as I get my new exhaust in, hopefully this weeked. When it originally started losing power it seemed like a plugged up cat, so I deleted it and am putting in a flowmaster high flow cat with new O2 sensors.
On a side note, I've read that backfiring out of the tb can indicate a lean condition, is that correct? I also pulled all of my plugs and they where bone dry and white.
Anybody with any ideas of what could be causing this would be greatly appreciated!
I have a 2000 Ram 1500 with a 5.9L Magnum engine. The truck is a 4x4 automatic trans with 214XXX miles on it. It will start up and idle just fine on the initial start-up, but as soon as I start driving down the road it will bog like it is starving for fuel. When I come up to a stop the RPMs will drop to anywhere between 300 and 500 and then shoot back up to regular idle at about 650 when I come to a complete stop. Recently, it has also intermittently started backfiring out of the manifold under load, however it doesn't always do this.
I have replaced the TPS, the IAC, the MAF, the throttle body, redone all of the gaskets on the manifold, including the plenum, also replaced the water pump and thermostat while I had it torn apart. It has a brand new cap, rotor, plugs, wires, and ignition coil as well. I will be replacing the O2 sensors as soon as I get my new exhaust in, hopefully this weeked. When it originally started losing power it seemed like a plugged up cat, so I deleted it and am putting in a flowmaster high flow cat with new O2 sensors.
On a side note, I've read that backfiring out of the tb can indicate a lean condition, is that correct? I also pulled all of my plugs and they where bone dry and white.
Anybody with any ideas of what could be causing this would be greatly appreciated!