Well, I have a 98 ram 1500 5.2 4x4. I can put the pedal to the floor, but the rpms clime real slow. I'm upto 60 before I hit 3000rpms. And when I take off it gets upto 1500 before it starts to go. Feels like I'm pulling a trailer. It just started today out of nowhere. Ran fine this morning. Any ideas?

 

Remove the front O2 sensor from the exhaust. (unplug it as well) Go for a ride. Run any better?

 

How many miles you got on her?

 

Blown plenum. Clogged catalytic converter come to mind.

 

Any codes? Possible bad tps. Wouldn't hurt to check fuel pressure.

 

The problem stopped and started again three times since I posted this. She has just under 200,000mi on her. Plenium has been changed(I did the magnet thing after I bought her.) Not sure bout any codes. Check engine been on since I bought it. Bad o2 sensor, never fixed it. And I couldn't get the o2 sensor off(too cold to be fighting it!) so I cut a hole just before the cat a few hr's ago. Drove for an hr, no issues yet. I'm gonna give it some time before throwing a straight pipe on her. I'll keep y'all informed. And thanks for the help, I never would of thought of the cat for this problem!

 

I know it's been awhile, but I'm just getting back on here. Wanted to let y'all know it was the cat. Them holes I cut are still doin the job! She's been running like a champ, well till today, but that's a whole different issue!