Quote:
Originally Posted by drover
With this other extra info, more thoughts come to the surface .............
If at the first start of the day you put foot on brake and it does a bit of a longer than normal crank before firing, the ambient temp is in the 20's then this could point to a fuel pressure problem, where your having a bit of bleed back and the LP pump has to prime/purge the lines first before the starter fires up.... have a look underneath and see if the fuel filter housing, the base of it is dry... On cold days the glow plug will delay start as it heats up while the lines are primed, when temp reached usually 10-15 sec at most then starter fires up.... but long cranking is a sure sign of air in line and long cranking is a big No, No in any CRD it will destroy your HP fuel pump in short order.....
The starter should only fire when the ECU has done all its checks and responses from numerous systems tick all the boxes... some systems though do not throw codes but may cause other unit fails which will throw a code, thats why all info regarding faults should be noted as the fault that appears unrelated can actually be the pointer to what the fault is ........... the main reason places just swap out units till the fault goes away, saves them time, not so your wallet..
Remove the OBD dongle for a few days ......
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Thank you for pointing in some directions here and yes I am collecting all evidence so that if it comes to someone doing a full diagnostics one day..i am giving them all info so it saves their time and my wallet.
Coming to the starter regardless of whether I delay the starter or not my starts are always quick and fires up. Never struggles starting unless it is on a CEL stuck mode and I turn off engine and immediately try to restart it which is something we will not do normally.
Only thing I am fixing/avoiding is getting a CEL if I do the delayed 'ON' position and start. Even when on a bad start the starter cranks and starts the car quick but only thing you notice is half a second after the engine comes to life there is a choke from the throttle flap as it closed fully (which should not happen on normal starts evidence my videos)
I am thinking you are on a point here by asking me to remove that OBD that is plugged in all the time now. It is one of the good ones that supposedly goes to sleep after 20 minutes of no activity and engine shut but yes it is another thing added to the load in the morning.
I have never seen the starter taking 10-20 seconds of heating before it cranks. It is probably never that cold here in WA. The longest time it would have taken to crank would be like 5 seconds.
My not long cranks but the ones followed by a slight choke is because of the throttle flap choking air when it closes it to much due to some confusion on the first second of starting. Which seems to be avoided on delayed starts as the throttle flap behaves correctly then. If I hadn't taken videos of it I would have never known these things. If you see my last video the cranks you see and hear are the ones I get always. They are the same as a year ago.