common issues on TC replacement have been - not enough fluid and wrong type of fluid

doublecheck the level - needs to be warm & idling (type you'd probably need the paperwork)


most limp mode issues have been related to air in fuel or clogged filter

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2005 CRD
stuff
Skeptic quod gratis asseritur, gratis negatur

Checked fluid and it is down 1/2 quart.... I will top it off later.

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2006 Liberty Limited CRD, Deep Beryl Green, Yeti tune, Arp studs, new cams, rockers, lifters, TB. "Green Monster"
2005 Liberty Sport CRD, Deep Beryl Green, GDE Hot Tune, ARP studs. "Rocket"
1982 Fiat 124 Spider Convertible. "Fiona"

I've experienced a real limp mode event the first year I owned my CRD. Never happened again after I got the ECU updated by DC. This psuedo limp mode is nothing like what I experience back then. Its like driving without the aid of the turbo and having all the tranny shift points set to 4000 rpm. I thought it might be Tranny, or boost issues. but I'm convinced its an injector going bad.

I've had these psuedo limp mode symptoms since this summer. This has been a progressive problem, happened one a month in July and August, every week in September and October and November, every other day in December.

Here's what I've done so far to troubleshoot and correct:
1. Checked tranny fluid level, it was fine, no issues. Be sure to set the parking brake and check it in Nuetral for a true level. Tranny pump doesn't run in park.

2. Thought it might be fuel delivery issue or a bad tank that clogged the element, Changed fuel filter and was extra dilligent to ensure that all air was purged. Old filter had 10k miles. Did notice a slight improvement in performance, but didn't fix the psuedo limp mode issue.

3. Inspected boost hoses for leaks, no whoosh, checked MAP, very clean.

4. About two months after this started to occur, I finally got a CEL P01202 which is # 2 injector issue. I checked all the connections, both at the injector and the ECU. I hoped that this was the problem. Cleared the CEL and checked it out again.

5. The CEL stayed off for a while, but the psuedo limp continued about every other trip. Continued to live with it, restarting any time it occured to get the power back. 01202 set again about a week later. Clear'd it, reoccured 2 days later which started a pattern of getting the CEL every other day. Crazy thing is that it can run fine for a trip, then the next trip, you go to pass and no acceleration. Never happens immediately on start up, always after I've driven a bit, no difference if the engine is cold or up to operating temps.

6. So I'm replacing the #2 injector, Finished that yesterday, waiting on my ECU back from GDE to program the injector code and update to latest ECO tune. Injector was dirty, but not excessive. After I cleaned it up, looked brand new. I'm not sure if it can be rebuilt, Would love to root cause it, find out the mode of failure. Don't know if this is going to be the fix, but I'm hopeful.

Don't know if that helps, I'll post when I've had a chance to road test for a while and verify I've beaten this gremlin.

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2005 CRD "Ol' Blue"
Red Ryder carbine-action, two hundred shot range model air rifle with a compass in the stock and this thing which tells time.
My build page- RL Komodo Rear and TJM Front Bumper, armored, lifted, JBA Steel D30, 4.10s and ARB air lockers.

The transmission needed a full quart of ATF-4 and the jeep is running superb.

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2006 Liberty Limited CRD, Deep Beryl Green, Yeti tune, Arp studs, new cams, rockers, lifters, TB. "Green Monster"
2005 Liberty Sport CRD, Deep Beryl Green, GDE Hot Tune, ARP studs. "Rocket"
1982 Fiat 124 Spider Convertible. "Fiona"

The issue is back and hasn't gone away.

I noticed a a pool of oil on the garage floor dripping from the drivers side and coming from what I think it may be near the EGR valve area, I will check this out tomorrow.

Could this oil leak also be the cause of the dreaded power loss I am experiencing at high speeds?

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2006 Liberty Limited CRD, Deep Beryl Green, Yeti tune, Arp studs, new cams, rockers, lifters, TB. "Green Monster"
2005 Liberty Sport CRD, Deep Beryl Green, GDE Hot Tune, ARP studs. "Rocket"
1982 Fiat 124 Spider Convertible. "Fiona"

Got to find out why its leaking first. Maybe low on oil?

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2005 CRD "Ol' Blue"
Red Ryder carbine-action, two hundred shot range model air rifle with a compass in the stock and this thing which tells time.
My build page- RL Komodo Rear and TJM Front Bumper, armored, lifted, JBA Steel D30, 4.10s and ARB air lockers.

Today I discovered that the oil leak derives from a leaky connection around a 3/4" steel pipe located on the driver side of the engine compartment just below the EGR Valve.... I scanned the parts fiche file and found out that it’s called the Turbo Oil Drain pipe. I plan to speak to the parts department at my local dealer to replace the pipe or keep it and reseal it with new gaskets.

Could this be the cause of the power loss?

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2006 Liberty Limited CRD, Deep Beryl Green, Yeti tune, Arp studs, new cams, rockers, lifters, TB. "Green Monster"
2005 Liberty Sport CRD, Deep Beryl Green, GDE Hot Tune, ARP studs. "Rocket"
1982 Fiat 124 Spider Convertible. "Fiona"

That sounds like that goes from egr cooler to the intake, it could cause performance issues.

I know this is a very old post but I am experiencing almost identical issues. My son is a diesel mechanic and his 8k scanner shows only turbo-underboost/overboost codes. Nothing else.

Machine is a 2005 CRD, 180k, EGR/FC bypassed via Sasquatch turbo Weeks Kit level 1 -- samco hoses.. nothing much else. This all started 2-3 months ago and is getting worse. Same symptoms, but does happen under 60mph. Usually happens after a power demand from 40-50mph, IE passing a car, accelerating onto the highway (can be darn deadly if I don't get it fixed). Pull over, stop and restart -- runs fine until the next time.

When it happens, can apply throttle, it just rev's to 3k or so - no power, it just holds maybe 68-70mph but keeps slowing. I can usually limp to an exit ramp or pull out w/o problem. Only thing I've noticed is more black smoke on a hard acceleration than I remember.

I am curious if this was ever resolved, so I can no where to look. I've seen no symptoms of tranny or torque converter issues. No shudder or slipage.

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Michael in Michigan
2005 2.8L Turbo-Diesel - 174k and still running strong
Sasquatch EGR Fix, Samco -- normal maintenance
Just my daily driver!

You say that at 80 mph the engine revs up to 3000 rpm and you start loosing speed?

This is a transmission problem.
Its either your torque converter lockup clutch has failed.
Or you 5th gear overdrive clutch has failed.

First thing to do is check the transmission fluid.

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U.S. Army Retired

Nope, drive on cruise at 80.. after merge onto Hwy, accelerated from 40-50, up to 80 traffic all around. Hit cruise, all of sudden start slowing. Revs at about 2300 losing speed slowly. Try to accelerate revs jump up to 3500 or so. Speed keeps slowly decreasing. Limp along to next exit pull off and shut down with immediate restart and all is good. Under hard acceleration fair amount of black smoke too which is not normal. This has happened several times almost always after steady or hard acceleration.

Sent from my XT1060 using Tapatalk

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Michael in Michigan
2005 2.8L Turbo-Diesel - 174k and still running strong
Sasquatch EGR Fix, Samco -- normal maintenance
Just my daily driver!

If it only happens with the cruise control on then I'd say its a problem with the cruise control.
I have no idea how to fix that.

If it still happens with the cruise off, then its a transmission problem.

Any codes?

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U.S. Army Retired

Not only with cruise control on, that is just the most common. Has happened driving on standard two lane passing someone and then problem rears its ugly head. My son the diesel mechanic tells me at a turbo problem, thanks the variable vanes are not moving correctly.

We are going to hook up his scanner and we are going to try to make it happen again and see what the scanner tells us real time. He's got one of those nice $7,000 snap-on scanners.

At 180 K a tranny problem does not seem to be out of the question at all. Hoping to see some kind of code to confirm what the problem is. Tranny fluid is clear and red but darker. Doesn't smell burnt.

Sent from my XT1060 using Tapatalk

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Michael in Michigan
2005 2.8L Turbo-Diesel - 174k and still running strong
Sasquatch EGR Fix, Samco -- normal maintenance
Just my daily driver!

If it was a turbo problem the engine would have low power, black smoke out the exhaust, and a difficult time getting up to 80mph.

At 80mph you should be at about 2400rpm, in 5th gear, and torque converter lockup clutch locked.
If the rpms are jumping up to 3500 its because either the transmission is downshifting, the torque converter is unlocking, or both.

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U.S. Army Retired