LOST JEEPS :: View topic - Cranks no start

GordnadoCRD,

I failed to mention that I replaced the fuel rail with another fuel rail that I had on my shelf, complete with the FQS already mounted to the back of it, undisturbed from the factory OEM..

I didn't try to remove the air in the rail after that and I will do that today.

I plan to refill the rail with fuel in the morning by cracking open the rear most nut and cranking the engine for 20 seconds or more, then close it.

I didn't think that the culprit was the FQS because there wasn't enough fuel pressure coming into the rail from the start, I saw drips instead of a spray when I cracked open the first nut coming into the rail from the pump and cranked the engine while watching it.

Here are the engine codes,

1 P0047 supercharger solenoid is short ground
2 P0091 Fuel Pressure Regulator 1 Control Circuit Low
3 P0146 O2 Sensor Circuit (No Activity), o2 sensor 3 bank 1
4 P0193 fuel rail pressure sensor circuit high input
5 P0299 Low boost
6 P0489 EGR SOLENOID CIRCUIT SHORT CIRCUIT.
7 P0562 Charging System Voltage Too Low
8 P0652 Low Voltage at the #1 Sensor Supply Circuit
9 P0670 GLOW PLUG CONTROLLER CIRCUIT MALFUNCTION
10 P1251 EGR SOLENOID CIRCUIT SHORT CIRCUIT.
11 P2141 EGR AIR FLOW CONTROL VALVE SHORT TO GROUND
12 P2295 Fuel Pressure Regulator 2 Control Circuit Low
13 U0146 lost gateway communication

I swapped the battery with a fresh one and no joy.
EGR valve is connected, but not functioning, the tunes disable it.
Crankshaft position sensor was changed last year with a part from Autozone. I may change it again.

The day before this happened, the driver side headlight went out but returned soon after and flickered, the fog lamps are out due to a wiring issue that I had encountered a year before. This could be where the short is and the cause of the ASD 15 amp fuse blowing and possibly the root cause of the problem. I'll be checking.

I appreciate the assistance, thank you.

Author:	racertracer [ Wed Jun 20, 2018 7:36 am ]
Post subject:	Cranks no start
I need some assistance with trying to figure out what's happening with CRD. Engine stopped while traveling on the highway and now it cranks but no start. Clicking sound coming from the flow control valve. All ground wires are cleaned and attached properly. At first the ASD 15amp fuse was blown.. replaced fuse and still no start, fuse has not gone out . I need ideas .. any help appreciated.

Author:	GordnadoCRD [ Wed Jun 20, 2018 9:34 am ]
Post subject:	Re: Cranks no start
I know this sounds random, but check to make sure the connector for the Fuel Pressure Solenoid at the rear of the fuel rail is fully clicked on. The connector on mine is missing the locking tab and I haven't bothered to fix it yet. When it backs off, I've had it make the vacuum solenoid click repeatedly, and also at other times, the Fuel Quantity Solenoid on the CP3 (only when the key is on). I don't know why it clicks, but when I push it all the way back in, it fixes it and starts properly. I know I should fix it. It's not and expensive thing, but I'm lazy, and when it's working I forget about it.

Author:	racertracer [ Wed Jun 20, 2018 8:22 pm ]
Post subject:	Re: Cranks no start
Gord... Tried it.. no joy.

Author:	Billybob [ Thu Jun 21, 2018 2:30 am ]
Post subject:	Re: Cranks no start
Is your SKIS red LED on the cluster ON all the time or flashing at you? Try remove the ASD relay and jumper pins 30 and 87 together inside the empty socket. Any CEL codes posted? Fuel filter blocked or air in filter? Crank or Cam sensor? If this is a 2006 CRD check the wiring harness behind the Fuel Filter Head Mounting Bracket for damage.

Author:	GordnadoCRD [ Fri Jun 22, 2018 12:07 am ]
Post subject:	Re: Cranks no start
Ok, backin up. neither of your CRD's list a fuel Lift Pump of any kind. If so, verify that they have power / are working / are providing more fuel than air. If not, I assume you've already gone through the bleed procedure, but if you haven't, try that, and see if you get more air between tries. Check the PDC for the fuse and relay for the injectors. There is one of each. Make sure they are good and working properly.

LOST JEEPS http://www.lostjeeps.com/forum/phpBB3/

Cranks no start http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=88910	Page 1 of 3

Author:	racertracer [ Sat Jun 23, 2018 9:01 pm ]
Post subject:	Re: Cranks no start
I have low to no pressure at the fuel rail ... i'm thinking fuel pump. Also, when I turn the ignition key to the on position, I hear clicking sounds coming from the fuel pump area, 5 clicks then it stops, never heard those before.

Author:	GordnadoCRD [ Sat Jun 23, 2018 11:39 pm ]
Post subject:	Re: Cranks no start
The clicks you are hearing are not from the pump, but the Fuel Quantity Solenoid valve mounted into the back. (as you already stated) The CP3 is very hardy and RARELY fails. The FQS natural state (no voltage applied) is WIDE OPEN. Maxumum Fuel. FAR more likely that it's the Fuel Pressure Solenoid at the rear of the rail. Here's a couple tests, but they will require 2 people, unless you have a starter jump button. The quick way (not an absolute positive, unless it works): Remove the engine cover so you can see the rear part of the fuel rail under the electrical loom. You will likely have to remove all loom attaching nuts, and lift the wiring loom up to provide access space. Using a brass drift, or a small brass or lead (soft) hammer: While someone is cranking the engine with the key, LIGHTLY tap on the Fuel Pressure Solenoid. The solenoid's function is to precisely leak amounts as directed by the ECM, to establish upper limit of fuel pressure. More voltage = more pressure. Key off = 0 pressure. When cranking, NO fuel should escape. If this solenoid valve sticks, it will leak, preventing sufficient fuel pressure (or any at all) to build and allow the engine to start. Once the engine is started, (ether, propane, etc) the vibrations shake the valve stiction loose, and allow normal pressure to build, and the engine continues to run, until next time it's shut off. LIGHTLY tapping on this solenoid, or the end of the rail should accomplish the same thing. If this makes the engine start, the FPS valve is your problem. If the solenoid has completely failed, this method won't work. Proper way to test this: At the rear end of the rail, on the left hand side, there is a hose fitting, with a short hose that carries low pressure return diesel from the end of the rail to a small plastic multi-port manifold, and from there, back to the tank. The manifold gathers return fuel from CP3 (Large, black) from the injector bleed (small, black) From the rail, solenoid end (medium, blue) to the return-to-tank (large, black) It should be attached to the intake manifold with a small bolt, closest to the fuel filter area. It is often quite brittle. so best to unbolt it from the manifold before working with the fuel return lines, or you risk snapping it somehow. ONce the manifold is loose, locate the (usually) blue line that carries return fuel from the rail solenoid discharge, back to the manifold. Probably short with a 90 degree bend. Loosen the clamp attaching it to the rail fitting, and unplug it from the rail. Use a bolt or something to plug the rubber hose, so return diesel from other sources doesn't spray out. Once this is done, use a container or another hose to a container (just in case) and have someone crank the engine with the key. There should be NO fuel come out. If ANY comes out, the FPS valve is your problem.

Author:	racertracer [ Sun Jun 24, 2018 4:15 am ]
Post subject:	Re: Cranks no start
GordnadoCRD, I failed to mention that I replaced the fuel rail with another fuel rail that I had on my shelf, complete with the FQS already mounted to the back of it, undisturbed from the factory OEM.. I didn't try to remove the air in the rail after that and I will do that today. I plan to refill the rail with fuel in the morning by cracking open the rear most nut and cranking the engine for 20 seconds or more, then close it. I didn't think that the culprit was the FQS because there wasn't enough fuel pressure coming into the rail from the start, I saw drips instead of a spray when I cracked open the first nut coming into the rail from the pump and cranked the engine while watching it. Here are the engine codes, 1 P0047 supercharger solenoid is short ground 2 P0091 Fuel Pressure Regulator 1 Control Circuit Low 3 P0146 O2 Sensor Circuit (No Activity), o2 sensor 3 bank 1 4 P0193 fuel rail pressure sensor circuit high input 5 P0299 Low boost 6 P0489 EGR SOLENOID CIRCUIT SHORT CIRCUIT. 7 P0562 Charging System Voltage Too Low 8 P0652 Low Voltage at the #1 Sensor Supply Circuit 9 P0670 GLOW PLUG CONTROLLER CIRCUIT MALFUNCTION 10 P1251 EGR SOLENOID CIRCUIT SHORT CIRCUIT. 11 P2141 EGR AIR FLOW CONTROL VALVE SHORT TO GROUND 12 P2295 Fuel Pressure Regulator 2 Control Circuit Low 13 U0146 lost gateway communication I swapped the battery with a fresh one and no joy. EGR valve is connected, but not functioning, the tunes disable it. Crankshaft position sensor was changed last year with a part from Autozone. I may change it again. The day before this happened, the driver side headlight went out but returned soon after and flickered, the fog lamps are out due to a wiring issue that I had encountered a year before. This could be where the short is and the cause of the ASD 15 amp fuse blowing and possibly the root cause of the problem. I'll be checking. I appreciate the assistance, thank you.

Author:	vwroad87 [ Sun Jun 24, 2018 1:26 pm ]
Post subject:	Re: Cranks no start
I had 13 codes flip yesterday after I blew the ASD fuse. Thought my ECM was toast. Definitely something shorted that ASD 15amp fuse for it to blow, I know shorted mine by troubleshooting a ground fault. Mechanical fixes are simple diagnosis and long repair, electrical are just the opposite. Take your time, the fault will appear. I'm still troubleshooting P1794 speed sensor ground fault that has the 545RFE in limp mode, so sad. racertracer wrote: GordnadoCRD, I failed to mention that I replaced the fuel rail with another fuel rail that I had on my shelf, complete with the FQS already mounted to the back of it, undisturbed from the factory OEM.. I didn't try to remove the air in the rail after that and I will do that today. I plan to refill the rail with fuel in the morning by cracking open the rear most nut and cranking the engine for 20 seconds or more, then close it. I didn't think that the culprit was the FQS because there wasn't enough fuel pressure coming into the rail from the start, I saw drips instead of a spray when I cracked open the first nut coming into the rail from the pump and cranked the engine while watching it. Here are the engine codes, 1 P0047 supercharger solenoid is short ground 2 P0091 Fuel Pressure Regulator 1 Control Circuit Low 3 P0146 O2 Sensor Circuit (No Activity), o2 sensor 3 bank 1 4 P0193 fuel rail pressure sensor circuit high input 5 P0299 Low boost 6 P0489 EGR SOLENOID CIRCUIT SHORT CIRCUIT. 7 P0562 Charging System Voltage Too Low 8 P0652 Low Voltage at the #1 Sensor Supply Circuit 9 P0670 GLOW PLUG CONTROLLER CIRCUIT MALFUNCTION 10 P1251 EGR SOLENOID CIRCUIT SHORT CIRCUIT. 11 P2141 EGR AIR FLOW CONTROL VALVE SHORT TO GROUND 12 P2295 Fuel Pressure Regulator 2 Control Circuit Low 13 U0146 lost gateway communication I swapped the battery with a fresh one and no joy. EGR valve is connected, but not functioning, the tunes disable it. Crankshaft position sensor was changed last year with a part from Autozone. I may change it again. The day before this happened, the driver side headlight went out but returned soon after and flickered, the fog lamps are out due to a wiring issue that I had encountered a year before. This could be where the short is and the cause of the ASD 15 amp fuse blowing and possibly the root cause of the problem. I'll be checking. I appreciate the assistance, thank you.

Author:	racertracer [ Sun Jun 24, 2018 5:44 pm ]
Post subject:	Re: Cranks no start
Ok so fuel is back in the rail. The 15 Amp ASD fuse remains OK, but engine is still no GO. I erased the codes and these are the codes that returned. 1. P0091 Fuel Pressure Regulator 1 Control Circuit Low 2. P0193 Fuel rail pressure sensor circuit high input 3. P0652 Low Voltage at the #1 Sensor Supply Circuit 4. P2295 Fuel Pressure Regulator 2 Control Circuit Low This looks to be fuel related and possibly the fuel pump, what say you? What is P0652... anyone ever dealt with this code?

Author:	rankom [ Sun Jun 24, 2018 9:19 pm ]
Post subject:	Re: Cranks no start
just for a moment , not trying to steer you away from electrical side , are the exhaust valves alive ?

Author:	racertracer [ Sun Jun 24, 2018 9:22 pm ]
Post subject:	Re: Cranks no start
rankom wrote: just for a moment , not trying to steer you away from electrical side , are the exhaust valves alive ? Explain?... are the exhaust valves working??

Author:	WWDiesel [ Sun Jun 24, 2018 9:52 pm ]
Post subject:	Re: Cranks no start
see this, maybe it can be of some help? https://www.yourmechanic.com/article/p0 ... urmechanic

Author:	rankom [ Sun Jun 24, 2018 10:19 pm ]
Post subject:	Re: Cranks no start
you asked me to explain , theres was a guy on our discussion board, he replaced cp3 pump and chaise electrical problem for a mount , and he discovered his engine dropped exhaust valve , so im saying, did you check mechanical side like compression ? i know you have codes , but me personally, i dont trust the exhaust valves on these engines

Page 1 of 3	All times are UTC - 5 hours [ DST ]
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group http://www.phpbb.com/

Author:	GordnadoCRD [ Mon Jun 25, 2018 1:20 am ]
Post subject:	Re: Cranks no start
This is sounding more and more like mine that had the wiring totally screwed up before I bought it. Since it was running then quit, and you haven't changed wires around at the ecm, It can't be the same problem. Both fuel quantity and fuel pressure solenoids are squarewave PWM controlled by ECM. Pin Checks and troubleshooting procedures are straightforward in ECM, just don't skip any steps. These https://oregonfuelinjection.com/shop/jeep-diesel/2005-2006-2-8-l-jeep-liberty-diesel/fuel-press-reg-liberty-for-hpp/ are known to fail. Proper function, no voltage at start, or some problem in wiring causes them to open max flow, and puts all the regulation function on the FPS at the end of the rail. Age - mileage - dirty fuel - dissolved water in fuel - etc. can cause the valve to stick at a low delivery point, not delivering enough fuel to the cp3 to build proper pressure. I suspect it's electrical though,somewhere. The LowVoltage came about on mine when i was rewiring and had a splice to the FQS fail. Had to solder it.

Author:	racertracer [ Mon Jun 25, 2018 2:44 am ]
Post subject:	Re: Cranks no start
GordnadoCRD wrote: These https://oregonfuelinjection.com/shop/jeep-diesel/2005-2006-2-8-l-jeep-liberty-diesel/fuel-press-reg-liberty-for-hpp/ are known to fail. You may be right. I can pull one of those off of the other PS3 pump that I have on the shelf and see what happens. I'll work on it again next weekend.

Author:	racertracer [ Mon Jun 25, 2018 2:46 am ]
Post subject:	Re: Cranks no start
WWDiesel wrote: see this, maybe it can be of some help? https://www.yourmechanic.com/article/p0 ... urmechanic WWDiesel, good info, thank you.

Author:	racertracer [ Mon Jun 25, 2018 3:36 am ]
Post subject:	Re: Cranks no start
rankom wrote: you asked me to explain , theres was a guy on our discussion board, he replaced cp3 pump and chaise electrical problem for a mount , and he discovered his engine dropped exhaust valve , so im saying, did you check mechanical side like compression ? i know you have codes , but me personally, i dont trust the exhaust valves on these engines Rankom... OK, I understand.

Author:	Billybob [ Mon Jun 25, 2018 3:45 am ]
Post subject:	Re: Cranks no start
@racertracer, is this a 2006 or 2005 CRD we are dealing with here? If these latest codes are being set the instant you turn ON the ignition then it sounds like a wiring problem to me...escpecially after blowing the ASD fuse! I will look through the appropriate wiring diagram to look for any likely circuits to check. If this is a 2006 CRD I presume you have checked behind the Fuel Filter Head Mounting Bracket for any damage to the wiring harness there?

Author:	racertracer [ Mon Jun 25, 2018 4:14 am ]
Post subject:	Re: Cranks no start
Billybob wrote: @racertracer, is this a 2006 or 2005 CRD we are dealing with here? If these latest codes are being set the instant you turn ON the ignition then it sounds like a wiring problem to me...escpecially after blowing the ASD fuse! I will look through the appropriate wiring diagram to look for any likely circuits to check. If this is a 2006 CRD I presume you have checked behind the Fuel Filter Head Mounting Bracket for any damage to the wiring harness there? Hello, BillyBob, My CRD is a 2005 model. Yes the latest codes were pulled when the key was turned and the engine did not fire.