Here's the scenario:

I'm stuck down in Mexico with my 2006 CRD and a service dealership that doesn't seem to know what they are doing.
About 500kms ago, I experienced the problem for the first time. When I start the engine and take off, there is no problem with power. However, once I slow down for a speed bump or a traffic light and attempt to go once again, the engine losses all power. By this I mean that when I accelerate again the engine cannot seem to do anything but accelerate very slowly. Accelerating between 1500 and 1600 rpm there is a terrible vibration, and once I get to 2000 rpm the engine effectively cuts power and I cannot accelerate any more. On the highway I am limited to 80km/hr.
If I pull off to the side, restart the engine and then step on it the engine takes off right away with lots of power - at least until I slow down for the next stop light.

I took it to the dealership here in Puerto Vallarta and the first thing they told me was that there was a problem with the air flow sensor. After 3 weeks of waiting for the part, they changed it and the problem persisted. I took it back and the next time they told me it was a problem with intake pressure sensor. This was changed with a delay of another 3 weeks, and the problem persists.

Does anyone have any knowledge of what could be causing this? EGR ?, MAF ? ...WTF????

Thanks,
G.

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06 Liberty Diesel 50 K

Six weeks in Vallarta...not to bad.

First thing I would do is get the fuel filter changed. (maybe you did this already).

I had to drop a GMC 6.2 L suburban diesel tank in mexico to get 2 lbs of sand out of the bottom. It had clogged the fuel strainer in the tank.

On the CRD there is a strainer like feature in the fuel pick up unit,I believe

You might consider having the shop there install the dodge lift pump in the tank, if they are gong to drop it and clean it, anyway. The CRD has most of the wirning and controls for a lift pump! It has solved some owners stall problems
See the thread by GMCTD "its 10pm where is your fuel pump". http://www.lostjeeps.com/forum/phpBB3/vie ... hp?t=26385 see also http://picasaweb.google.com/bill.barg/J ... 3417643842 for wiring details for the 2006

The parts are;

MODULE, FUEL PUMP (fuel transfer pump) 2005^ Dodge 3500 Cummins
5143160AA $156.21

WIRE HARNESS, FUEL TANK 2006 LIBERTY 3.7L
56047848AB $51.78 (some wires to be switch around as per the thread)

we can fill in more details if you want to try this

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06 CRD LTD - Suncoast TC- Shift Kit - Spicer UJ - FRKNLIFT - F37 - Magnaflow - 22.0 City - 24@65MPH - Fumoto F-102 - AUX T Cooler - Tank Lift Pump

Find out which codes it threw. If it threw a 0093 you probably have a plugged filter or are sucking air through the fuel heater plug in the filter head.

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Manure green 2005 CRD sport4x4, GDE Hot tune, Cat Gut, OE skids, Draw tight hitch, Duramax lift pump, 160K on multiple varieties of fuel, XM radio, Escort live with Redline, fog light mod, GPS, Icom IC7000 all band radio call sign KC9QPF, Grabber AT2s on Soft 8s, FIA grill blanket.

We have a couple of LOST members down there in Mexico. See if you can find them on here. Maybe they are close enough to give you a hand. Good luck and I hope you get her fixed.

Terry

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2011 Ford F-150 XLT 4X4

Since this is your first post I'll assume your a newbie and start at the beginning. It sounds like the very common air in the fuel manager head problem and they are hard to find but share common areas. This can be as simple as a loose hose clamps, there are three, two on the fuel manager and on the high pressure fuel pump. The system is under a vacuum so you won't see fuel leaking out other then from a burnt heater plug on the fuel head. That's the one with that has the red and black wires, remove it and if there's diesel fuel inside there you've found it. Wait three weeks for another A good service tech should already have checked the filter for water, replaced the filter and reprimed the system but don't "assume" Still have a problem Drop the tank and check for debris clogging the intake screen on the bottom of the pickup basket as mentioned. Worst case is your high pressure pump has a problem. You didn't mention if it threw any codes or not.

If you hear a "whoshing" sound have them check the intake hoses for slits. Look for oil spots that are tell tale sign. Don't overlook inside the plastic screen type stuff. But it does sould like a fuel problem.

Most 05 and 06 CRD's suffer from some type of air in the fuel problem and an in tank cummins lift pump is the ultimate solution for it
Since you said "500kms" I'll assume your not from the US but maybe Canada. Most US dealers techs don't seem to know much about our CRD's and their Mexican counter parts sound like the same We really should not expect much from a gasser tech who was given half a day instructions on diesels

To test your MAF (Mas Air Flow, is this what they replaced) you could unplug it, you'll get a cel but under normal situations it will run better.

There is also a problem on 06 models where the engine wiring harness is rubbing on the bracket holding the fuel filter head causing shorts and intemittent problems. On 05's the harness is routed a few inches lower.

You didn't mention your total mileage (KMS) but if your out of warranty or really desperate find a decent independent diesel mechanic.

Good luck
Joe

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Atlantic Blue 06 CRD Limited (his)
Joined by a 2000 XJ Classic (hers)

You might try a local Cummins service center. I'm currently across the state on vacation and mine threw a P0110 (Manifold Pressure Sensor) fault. After a few conversations and telling them the fuel system was similar to their ISB (or what is in a Dodge Ram) they pulled out what sure seemed to be the same Bosch Manifold Pressure Sensor. (there can't be too many variations made by Bosch)

Fortunately on my way there, the MIL (check engine light) went off so I really didn't have to try it out. (Instead I get to go home and test the wiring...)

If you can convince them it's similar to their ISB and get them to take a look under the hood they'll start to see stuff familiar to them.

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2005 CRD Limited Flame Red w/ Renegade rock rails & light bar, AirLift 1000. 225/75R16 MT/R's on cheap black steel wheels, dual MOPAR subwoofers, Ipod kit & seat covers, Samco hoses - totaled and gone. 2008 WK Laredo 3.0L diesel - AirLift 1000, wife won't let me mess with it much. 2013 JK Sahara on order.

Many thanks for all of the the advice so far, it is much appreciated!

For clarification, yes I am a newbie cutting my teeth in a foreign land, and there are 52 K miles on the vehicle and it is no longer under warranty

I am inclined to believe it may be a fuel problem given the quality of diesel in Mexico; however, how would this explain the fact that when I pull over and restart the vehicle it fires right up with no problems and tons of power?

Does anyone have any thoughts on if this could be related to the air flow control valve? From reading previous posts it seems that a faulty AFC would try to choke the engine, which is essentially what is happening.

I am having the fuel filter replaced as we speak, and awaiting whatever information the dealership can give me on the diagnostics. I will try to get the code numbers out of them, but previous efforts have been like pulling teeth.

This forum rocks! Thanks again.

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06 Liberty Diesel 50 K

You can unplug the AFC if you so desire. That would definitely get rid of it as a potential cause. I think it defaults to open a short time after the vehicle is turned off. Don't know if it throws a code, but other than a very minor chance of runaway dieseling, it doesn't really do much for you anyway.

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2005 Silver CRD Limited
245/75R16 GoodYear Duratracs
Fumoto drain | ProVent CCV Filter
Stanadyne FM100 filter | Cummins fuel pump
GDE Eco | SEGR | BoulderBars | FrankenLift | Frankenskids

I have had the exact symptoms that you are having when I bought some diesel with algae in it a couple of years ago. The IP starts to suck big air bubbles out of the fuel when the filter is plugged and the engine is under high load during acceleration because of the strong vacuum that the fuel system generates. The computer then senses this and throws it into limp mode. After one or two start cycles ( fully cooling down and being restarted ) it determines that there is enough fuel to supply the IP after all, because it is not under load at startup. Once you start out down the road again (usually in an intersection) it starts feeling too much restriction again and gives you deja vu. A small air leak in the system can also give similar symptoms but usually at startup and not once you are moving.

What you describe is not one of the symptoms of a bad AFC valve.

Come un taco por mi en la playa.

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Manure green 2005 CRD sport4x4, GDE Hot tune, Cat Gut, OE skids, Draw tight hitch, Duramax lift pump, 160K on multiple varieties of fuel, XM radio, Escort live with Redline, fog light mod, GPS, Icom IC7000 all band radio call sign KC9QPF, Grabber AT2s on Soft 8s, FIA grill blanket.

Your fuel heater plug is melted allowing air in fuel which causes ruff running. Common problem with crds and jeep will repair heck its there design problem. To get back states pump the water sepatrator thingy few times then try restart.