Hi fellow jeepers I have a bit of a problem. My 05' CRD started to act funny today. While im driving it acts as if I was feathering the throttle up an down. When I accelerate it drives in bursts and while I am cruising on the highway it surges also. the rpms will go up and down about 200 rpm. The engine light came on and it blows a lot of black smoke now. My lib has 62K on it. I changed the fuel filter back in the summer and I clean the MAP sensor regularly. I had the ORM for a while but I plugged the sensor in a few weeks back because I have been getting terrible fuel mileage lately and I wanted to see if it would get better. Last winter I was averaging 19mpg now i am getting between 14 and 18 mixed highway and city. Any opinions to what the problem is would be great so I dont have to take it to the dealer and get raped in charges. Thankyou

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05' Liberty Sport CRD-
Magnaflow muffler
Gutted Cat
SEGR
EHM
New Thermostat
New boost hoses
New MAF, MAP and Boost/Intake pressure sensor
V6 Airbox Mod with K&N Air filter
FIA grill cover for winter
225 75 16 General Grabber AT2s
98k miles and counting

2007 Honda CBR 600rr:)

Bad fuel or EGR stuck open, blown turbo hose. There is a lot to check. Any codes??

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2006 Black Jeep Liberty CRD Limited
K&N, Samco Hoses, Michelin 245/70-16 LTX A/T2, Fumoto F-102, V-Force Muffler, Mopar, Hitch, Trailer Wiring, Skid Plates, Slush Mats, Rear Shelf, Predator Stage 1, Transgo, ORM & CodeReader, Facet 40109 Pump
"IT'S A DIESEL THING, YOU WOULDN'T UNDERSTAND"
Certified Services Auto & Truck Repair

Air filter............

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'05 CRD Limited
Pricol EGT, Boost
GDE Hot '11; EDGE Trail switched
SEGR; Provent; Magnaflow;
Suncoast T\C, Transgo Tow'n'Go switch;
Cummins LP module, Fleetguard filter, Filterminder
2.5" Daystar f, OME r; Ranchos; K80767's, Al's lifted uppers
Rubicons, 2.55 Goodyears
Four in a row really makes it go

If your fuel filter was dirty the new one might be also. In other words some bad fuel. Or....6 million other things!

Terry

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2011 Ford F-150 XLT 4X4

I had this problem when I bought my KJ,especially on hills,my fuel head was losing prime.check plunger on fuel head,push on it,if its not hard push repeatly until firm.After that check your fuel filter,if these don't work start looking around fuel head for"weeping" this will be were your pressure is going.These are easy things you can do at home.By all means check for codes.Maybe a lift pump is needed?My 05 has 85,000 miles, 32,000 on WVO.These are very simplistic fuel heads,similar to old Mercedes,If thats what is bad,you can fix in your drive way.good luck................H

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2005 greaser KJ,jeeper greaser

Surging is one sign of air leaks. Pump up the primer and see if you are spurting air out the bleeder when you crack it open. If you installed a lift pump, the primer should be very firm when you push on it, if not your lift pump is not working.

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2006 Pearl Green CRD
Magnaflow 2 1/2" Cat Back
KJ Extra Leg Room Brackets, Carter Lift Pump, V6 Airbox, ORM
Fuel cooler, Oil Separator, Progard 7
Gauges EGT Boost Trans Temp Oil Pres, Michelin LXT AT2 245 70 R16
7,000# Draw Tight hitch, PML EX Deep Trans Pan
Centrifuge, SunCoast, Transgo, RAM TCM, InMotion Stage 2
Wife's 99 TDI VW Beetle

It is not the fuel filter. Plugged fuel filters don't cause black smoke. When the fuel filter is plugged it is unlikely to surge on the highway, it usually just sputters and dies. A plugged air filter will not cause surging or black smoke either. Air in the fuel system causes White smoke.
The symptoms described are consistent with a blown out CAC hose. Remove the hose between the turbo charger and the inter cooler. Look at the bottom of the hose particularly well for small cracks or tears. Oil from the CCV collects at the low point of the hose and softens the rubber. The updated ones from Chrysler are supposed to be resistant, or you could get one of the new (expensive) ones from Samco. If it is indeed the CAC.

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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.

Try this thread. http://www.lostjeeps.com/forum/phpBB3/vie ... sc&start=0

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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.

Its your turbo hose(s).........I had the same thing about a month ago....Get the SAMCO's......HJ

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☀lllllll☀Black 05 CRD Splimited, Track Lock, Select Track, Suncoast TC, Transgo shift kit
GDE Hot Tune & Trans Tune, K&N Filter minder, Green Air Filter, Magnaflow 1226
LT245/75/16 BFG AT, EVIC, INPro LED 3rd Brake Light, V6 Airbox
LED Courtesy Lts & Rear floor Lts, Halo Key Light
02 Radio Bezel with ashtray & LED light ☀lllllll☀

Warning!

I have been having an intermittent problem with white smoke. I suspected fuel quality issues, but now I am thinking its air in the line based on this thread. Should the plunger on the fuel manager head stay firm forever after you pump it up and bleed the air off? Since I don't have a lift pump installed I figured it would just soften up as fuel flows through the head. Is this line of reasoning flawed?

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'06 Stone White, CRD Limited
CRD Frankenlift II, Rock Lizard Rear Bumper, Mann Provent, GDE FT-ECO Tune, "Euro Torque Converter, Transgo 545RFE-H2 Shift Kit, 245/75 MT/R's on Moabs, Full Mopar Skids, Front Tow Hooks, CAT 2 Fuel filter and bleeder valve mod, Fumoto valve, Wahlbro Lift Pump, Custom 2 1/2" Exhaust

Fuel problems are not intermittent, it will run like crap through the whole tank. The plunger on the fuel head will go soft after a very short time if you are sucking air (which you probably are if you own a CRD). How long since you changed the fuel filter? Why don't yo throw a lift pump on it? Even if that isn't your problem now, it is cheap and easy insurance against future problems with air.

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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.

To everyone who said turbo hoses thanks becuase both of the intercooler hoses were split. I went with the factory ones for now since I needed them immediately and the local dealer had them in stock. Thanks again for the feedback.

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05' Liberty Sport CRD-
Magnaflow muffler
Gutted Cat
SEGR
EHM
New Thermostat
New boost hoses
New MAF, MAP and Boost/Intake pressure sensor
V6 Airbox Mod with K&N Air filter
FIA grill cover for winter
225 75 16 General Grabber AT2s
98k miles and counting

2007 Honda CBR 600rr:)

Alls well that ends well. Except for the load dropped on new parts.

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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.

The small hose is now flourosilicone from Mopar. Don't know about the big hose.

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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.

Just replaced it and it was identical to the old one. One NIC higher but no apparent material difference. ProVent is on the way...

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1998 TJ Gasser - Just for fun!

Sold in January 2012:
2005 Sport CRD
New to me March, 2007 w/22k miles
165,000 miles and still going strong
Factory Tow Package, Added Courtesy Lamps,
New Style Mopar Fuel Head,
Cooper Discoverer ATR
Mopar Slush Mats (JUNK!), Fumoto Oil and T-Case Drain Valves