AllTorque Posted February 23 Posted February 23 My guess would be the injector for the DPF is stuck open. It adds diesel in the exhaust before the DPF for regen. 1 Quote
Sunbeam Posted February 23 Posted February 23 11 minutes ago, AllTorque said: My guess would be the injector for the DPF is stuck open. It adds diesel in the exhaust before the DPF for regen. No DPF on this thing, pretty basic (2008). I wanted to check the injector compensation values but my scan tool won’t talk to the computer Quote
Doug Hill Posted February 23 Posted February 23 Any leakage down the injector seats? If someone has done the head and had a hoon on the injectors the saddles, bolts and sest washers are probably stuffed. And they love an injector at the best of times 1 Quote
Hemi Posted February 23 Posted February 23 5 minutes ago, Doug Hill said: Any leakage down the injector seats? If someone has done the head and had a hoon on the injectors the saddles, bolts and sest washers are probably stuffed. And they love an injector at the best of times Could this also cause a symptom of excessive wind over after sitting? In my experience if this is a thing the air and diesel change places on running/not running, air gets pumped into the fuel system on running and then on stop the injector will drip fuel into the chamber ( not always, the big volvos do seats/ tubes and its usually an air into diesel scenario not fuel into chamber. hard starting but not a rough running/knocking/white smoke.) Quote
Sunbeam Posted February 23 Posted February 23 7 minutes ago, Doug Hill said: Any leakage down the injector seats? If someone has done the head and had a hoon on the injectors the saddles, bolts and sest washers are probably stuffed. And they love an injector at the best of times Can’t see any leakage, doesn’t mean it’s not there. Looks like new injectors can be had for $500 which isn’t too bad by modern standards Quote
Hemi Posted February 23 Posted February 23 Have had an injector start unwinding at the body and leaked....but that caused hydraulicing ... don't think its that, but hey on the table eh. could let it sit , pull the plugs and send down something to check for raw fuel in the chambers after cooling/sitting. Quote
Doug Hill Posted February 23 Posted February 23 Just now, Sunbeam said: Can’t see any leakage, doesn’t mean it’s not there. Looks like new injectors can be had for $500 which isn’t too bad by modern standards Probably would pay to have a borrow of a scan tool that will tell you the compensation, or become friends with someone at Ford and they can do you a discounted EGR cooler before that also explodes haha Or if you can do a injector leak off test and see if one of them is spastic. Quote
Sunbeam Posted February 23 Posted February 23 1 minute ago, Doug Hill said: Probably would pay to have a borrow of a scan tool that will tell you the compensation, or become friends with someone who tunes, and delete the egr while you’re in there Or if you can do a injector leak off test and see if one of them is spastic. Fixed.. 1 1 Quote
mjrstar Posted February 23 Posted February 23 I had a bad injectior that was maxed on compensation, and some deleted seat seals it didn't spit raw fuel out. It did have an extra chunky sounding idle that went away when the boost got up. 1 Quote
Hemi Posted February 23 Posted February 23 For EUP injection a good indicator of and off injector/leaking valve seat is a sex party bowl noise and then it hits the goodies and disappears... but yours is common rail, so the above is useless. Put my chips on injectors/ one injector that has had some schmoo get into it ( if they were messed with recently) Quote
westy Posted February 23 Posted February 23 Can check each injector in place by using a ball bearing to seal where the injector pipe joins the rail. Be gentle though. Quote
Sunbeam Posted February 23 Posted February 23 I started it this morning and unplugged an injector one by one but this was inconclusive, miss might be random. Was going to take it to the local garage to scan, but he’s shut up shop permanently to go mining! Now I have to find a new wof guy too-uuurgh! 1 Quote
Yowzer Posted February 24 Posted February 24 20 hours ago, Hemi said: gas axing its way through the piston. 3 Quote
Sunbeam Posted February 25 Posted February 25 EGR cooler bypassed/egr disabled and a bottle of injector cleaner and almost no smoke today. Not ready to claim victory yet. Quote
AllTorque Posted February 25 Posted February 25 7 hours ago, Sunbeam said: EGR cooler bypassed Is it using coolant? Quote
Sunbeam Posted February 25 Posted February 25 3 hours ago, AllTorque said: Is it using coolant? Didn’t think so until I discovered a low tide situation in the radiator, expansion tank was at the proper level. I guess if there is enough air in the radiator it doesn’t suck out of the overflow anymore Quote
igor Posted February 25 Posted February 25 10 minutes ago, Sunbeam said: Didn’t think so until I discovered a low tide situation in the radiator, expansion tank was at the proper level. I guess if there is enough air in the radiator it doesn’t suck out of the overflow anymore Something similar happened with our (petrol) Atenza. Young ones had been checking coolant level at the expansion tank rather than at the radiator cap itself. A blockage in the wee hose from rad cap to tank combined with an unidentified coolant leak somewhere caused an incident of rather serious overheating. A valuable lesson has been learned. Quote
AllTorque Posted February 25 Posted February 25 30 minutes ago, Sunbeam said: Didn’t think so until I discovered a low tide situation in the radiator, expansion tank was at the proper level. I guess if there is enough air in the radiator it doesn’t suck out of the overflow anymore EGR cooler is leaking coolant into the exhaust. 2 Quote
Sunbeam Posted February 26 Posted February 26 5 hours ago, AllTorque said: EGR cooler is leaking coolant into the exhaust. Turns out these things are notorious for it so that’s why I tried it. I’ll pressure test the cooler to make sure Quote
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