non starter

[phatboy]

Hi all
I have a 2008 2.4 that wont start a couple of weeks ago the truck started making a chuffing noise then a knocking and cut out and hasn't started since.
I had a mechanic have a look at the roadside and said it looked like injector seals so have changed them but still nothing so I checked and there if fuel and with a meter but I have now power running to the injectors I also checked the resistance and all 4 are reading 0.
any help would be greatly appreciated

[knobby1]

You'll get no power to the injectors until the fuel pressure exceeds the minimum threshold. Live data will give the full story. Idle rail pressure is normally ~230 bar. Did the injectors go back in the same cylinders they came from..??

Have you had the codes read.?? If so what were they..??

Lord Knobrot

[phatboy]

Hi thanks for the reply yes all injectors went back in the same location
when I first plugged in I go this little list lol
P037d
P1293
P068a
P0264
U0167
U300a
B1903
B1904
B109b
B1932
B1868
B1318
And after clearing with forscan I got
P037d
B1083
B1094
B1932
Thanks
Phatboy

[phatboy]

Plugged in forscan again to check fuel rail I got a reeding of 450-590bar on cranking according to forscan the desired is 385 bar and a voltage of 1.09-1.95v if that’s any help.
Phatboy

[knobby1]

Hi thanks for the reply yes all injectors went back in the same location
when I first plugged in I go this little list lol
And after clearing with forscan I got
P037d
B1083
B1094
B1932
Thanks
Phatboy

P037D is a glow plug sense circuit issue.

All the "B" codes are BCM related and won't stop the engine from starting, mostly electrical dramas. Might pay to check all the earths and loom connectors etc..

Are you getting cam/crank synch...?? If not it will never start. It's possible you may have a cam timing issue....she may have thrown a chain, or at least a few teeth....chuffing, knocking and cutting out....doesn't sound promising. Pop the rocker cover off and check for broken rocker ladder and/or ladder bolts.

Lord Knobrot

[phatboy]

Would the engine still turn over ok if the chain jumped

[knobby1]

Would the engine still turn over ok if the chain jumped

Yes, it will still turn over, but if the cam timing has jumped more than two teeth it will almost certainly break the rocker ladder or pull it's bolts out. The valves are straight on to the pistons so it's rare that they bend valves if the timing is out.

Checking the cam/crank sync will tell you straight away if it's worth looking for sensor or cam timing issues.

Lord Knobrot

[phatboy]

Checked with forscan on the cmp and ckp sync read pid data and it should no when off and yes when cranking is that what it should be sorry new to forscan.
Thanks

[knobby1]

Checked with forscan on the cmp and ckp sync read pid data and it should no when off and yes when cranking is that what it should be sorry new to forscan.
Thanks

When cranking it should tell you whether it has sync or not. If not you may have found the issue.

Lord Knobrot

[phatboy]

Shows yes when cranking and no when just ignition on so guessing that all in sync checked the glow plugs as well 2 showing no voltage 1 is 2 volts and 2 and 11volts

[knobby1]

Shows yes when cranking and no when just ignition on so guessing that all in sync checked the glow plugs as well 2 showing no voltage 1 is 2 volts and 2 and 11volts

Ok, so sync is good, which means the cam timing is ok...Glow plugs aren't really needed to start these engines, it helps but not really a necessity.

So your issue must be fuel related. Is you fuel filter full of fuel..?? Does she start with a sniff of easy start..??

Lord Knobrot

[phatboy]

So replaced both batteries now has nice strong crank I checked the fuel filter and that is ok I managed to get it to run for about 20 seconds with easy start but it wouldn’t idle and it’s sounded awful really loud knocking wondering if the injectors are duds

[knobby1]

So replaced both batteries now has nice strong crank I checked the fuel filter and that is ok I managed to get it to run for about 20 seconds with easy start but it wouldn’t idle and it’s sounded awful really loud knocking wondering if the injectors are duds

The engine is running on easy start but still not on fuel....What does the live data tell you as regards fuel rail pressure during cranking..??

The knocking noise is a bit worrying though.

Lord Knobrot

[Chug]

Excess easy start can make the engine knock and rattle as some cylinders get fuel at the wrong time as its going through the inlet manifold and is not injected to the correct cylinder

[phatboy]

Fuel rail when cranking is reading min 450 max 590bar the knocking is the same as when it went the first time