2.5L ('98-'01) short on power, sometimes...

[eaglescout94]

Since I've got my 98 2.5L back on the road and handling daily driving duty's I've run into a bit of an issue that has me stumped. Most of the time it drives fine but I have other times where it loses some power for a bit but come back. I can hear and feel the difference, acceleration is extremely slow at that point at best. When it happens most of the time its after I shift gears, predominantly into 3rd or 4th gear. Ive noticed if I press in the clutch then rev it a bit its back to full power, otherwise it works itself out in 20ish seconds. I did plugs 3 years ago, plug wires i believe are fairly recent as well. Unfortunately my dad was under the hood in the last 3 years and I don't know what he's tried to "fix". Where would be a good spot to start digging into it? I've pulled codes and only thing is o2 codes

 

[scotts90ranger]

What O2 codes? That would definitely do something as it could be running rich or lean and would tell some of the story.

 

[eaglescout94]

I’ve attached a pic of the codes. From what my scanner says it’s both rich and lean codes, an issue with the high side DPFE sensor hose.

 

[RobWigglezz]

How old is the clutch? When mine needed to be replaced, shifting into 3rd and 4th was when I noticed it was slipping. Pushing in the clutch, revving it probably cools it down enough to work again. Just a thought

 

[eaglescout94]

I have no clue on the age. If it was slipping wouldn’t my rpm’s rise more so than usual. It seems to start at around 2,000 rpms

 

[RobWigglezz]

I have no clue on the age. If it was slipping wouldn’t my rpm’s rise more so than usual. It seems to start at around 2,000 rpms

You'd notice a loss in acceleration first. But yea, if you then give it some throttle it would rise in rpm. Clutch is probably ok if it's at a constant rpm.

 

[eaglescout94]

It’s acting like it’s dropping cylinders or getting weak spark is the best way I have to describe it. I pulled a couple plugs and they still looked good, I have new wires on the way for it. The sensor hose issue was easily resolved. It just came off the fitting.