No acceleration, engine dies.......

**Nomad9** · 22nd October 2016, 06:21 PM

Hi There,
So replaced the head on Red Dog, 2002 TD5 15P head manual transmission, started up yesterday on completion went out for a drive, all great, running as per normal, maybe a little bit of ecxcessive overrun (this might just have been me being overly critical), nothing else. Maybe drove 15 klms all up.

This morning, come to start, just a little bit more turning over than normal, acceleration doesn't seem as good, get to the bottom of the drive and accelerate, suddley complete loss of power, kicks back in as suddenly as it died and then dies again.

Try to start, it is as though I have a flat bettery except the lights on the dash don't go dim. Battery was replaced maybe three weeks ago. After about three or four attempts the engins starts to turn over getting quicker and quicker, eventually sits on tickover, try to acceleate nothing, very little power, moves about 20 meters and dies again.

Try to start again, again sounds like a flat bettery without the lights going dim. Eventually spins over quite freely and sounds like the engine wants to go but just won't bite.

Went and got plan B out of the garage and left plan A by the side of the road.

Came back maybe fours or five hours later, engine started and I had the ability to turn around, got maybe 10 meters up the road engine dies again. Again sounds like a flat battery but isn't.

Towed home by my good wife, Red Dog back in the shed. Engine now starts and will tick over, depressing the acceleator nothing, engine speed won't rise. Put my Hawkeye on, no faults recorded. I checked the live data, the fuel pump manifold and head pressure are about 100 kpa which seems low, the fuel pump also doesn't sound as fast as it usually does. The fuel pump 's running (obviously).

Have been to the shed, started engine again now revs, up and down several times, switch off the engine, engine starts but won't rev. All the voltages indicate that the throttle is being pressed however the engine speed doesn't change.

New fuel filter was fitted a week or so, ran to work for a week prior to taking the head off. Haven't been to any dodgy servos, only BP

Swapped relays in the engine bay and checked fuses, nothing found or changed.

Does this sound like a fuel pump issue? Silicon hoses fitted in the turbo lines no internal colapses noted when I did the head, a bit of smoke when reved, not overly smokey hence I thing it is furel delivery andnot air intake related, open to ideas!!

I did put some injector cleaner in maybe one and a half tanks ago, not sure if this is relevant however more information.

Any assitance greatly recieved.

Cheers Marty.

**sierrafery** · 22nd October 2016, 06:44 PM

Seems very like fuel pump HP side failure

**justinc** · 22nd October 2016, 07:10 PM

Sounds like injector lower washers to me. Have you checked your oil level??? I have seen a leaking one allow enough diesel into a cylinder to hydraulic lock during cranking...😮

Jc

**Nomad9** · 22nd October 2016, 07:29 PM

Hi Sierrafery,
Thanks for that at least i'm on the right track,, a whole miryad of things go through your head especally after I've had the engine in so many bits. For something to fail coincidentaly that wasn't touched did seem a bit "random". Again thanks I'll now have to find a fuel pump.....

Cheers Marty.

**Nomad9** · 22nd October 2016, 08:00 PM

Hi JC,
Thank you for your suggestion, I have just checked the oil level spot on where I left it yesterday, I would have thought that upper o-rings would have filled the sump, lower washers the cylinder and hydraulic lock as you mention.

New copper lower washers 99.9999999% sure I put them all in I don't have any left over I bought 5. Upper o-rings I am 100% sure that all of these were replaced, and I felt them go into location, I was super careful here because I have been caught out with an upper o-ring before, missed the right groove, however caught it because the injector dropped straight into the hole.

I am sure as I can be without taking the injectors out that they are all right. The engine ran beautifully last night, stopped and started perfectly.

It is only when the engine stops itself whilst I am trying to move it is difficult to turn over. If I stop the engine from idle which is all it will do right now the engine spins as normal when I try to start it again, no sluggish start.

Usually when the ignition key is turned to on and the fuel pump starts initially I hear this high rev pumping sound, whenever I turn te ignition on now all I hear is a low buzzing sound of the fuel pump, no high pitched reving sound.

I have now checked over the inlet side everything looks to be normal, nothing has fallen off or appears to be blocked....

If you think of anything else suggest away....

Cheers Marty

**bronson** · 22nd October 2016, 08:45 PM

Any air in the fuel line by any chance?

Bronson

**Nomad9** · 22nd October 2016, 08:52 PM

Hi Bronson,
Initially after the head was installed I bled the fuel system through for a couple of turns of the key before going for a start. After a few turns ole Red Dog fired up and then as I mentioned I drove for about 15 klms before returning home, stopping and starting when I visted the shops and other places about maybe four stops and four starts each time perfect.
I would have thought that the air would have been well and truly out by then, the tank is 3/4 full.

Thanks for the suggestion, I keep on heading back to a fuel issue. Encouraging.....

The fact that when the engine is at idle which is all it will do right now and I can put my foot to the boards with no increase in engine speed must mean something. I have no engine light up by the way. If the fuel pressure is to low will the engine try to speed up and then falter if the throttle pedal is pressed or is the ECU smart enough to know that with the fuel pressure as low as it is that the accelerator is disabled.

Cheers Marty

**Nomad9** · 23rd October 2016, 09:03 AM

Hi There,
After reading a few posts I am now getting ideas about the clutch switch being a manual, the throttle position sensor and possibly the "throttle pot", i'm not sure if the throttle pot and the throttle sensor are the same thing, just people using different terminoligy.

Because I had seen the throttle voltage changing I had assumed that the throttle sensor was working... Anybody had a throttle pot / sensor failure, do the symptoms sound anything like the ones I am seeing?

Cheers Marty

**sierrafery** · 23rd October 2016, 09:53 AM

here are the symptoms of TP failure(from RAVE):

The TP sensor can fail the following ways or supply incorrect signal:
l Sensor open circuit.
l Short circuit to vehicle supply.
l Short circuit to vehicle earth.
l Water ingress.
l Sensor incorrectly fitted.

In the event of a TP sensor signal failure any of the following symptoms may be observed:
l Engine performance concern.
l Delayed throttle response.
l Failure of emission control.

If the TP sensor fails, the engine will only run at idle and the MIL will remain on until the fault is eliminated. Turning
the ignition off/on can reset the MIL provided that the fault has been rectified.

**Nomad9** · 23rd October 2016, 10:22 AM

Hi Sierrafery,
the only thing I don't have is the MIL light on, (assume engine light, what does MIL stand for?). Apart from that most things line up.

This morning starts, engine wanted to go straight away, when I let the key go the engine was running at idle. Pressed the accelerator a couple of times, very delayed response, then the engine revs slowly up and down. Turned the engine off now and have disconnected the battery, I'll see if that resets anything, i'll try again.

Thanks for hangining in there, I am either aiming now at the throttle sensor or the fuel pump. My step-son iscoming down with his D2 later on this morning I'm going to check the fuel pressure on his 2002 D2 to see if they are the same.

If you think of anything else please let me know.

Cheers Marty

Thread: No acceleration, engine dies.......

Thread Tools

No acceleration, engine dies.......

Bookmarks

Bookmarks

Posting Permissions