intermittent bad starting
#1
intermittent bad starting
Hi
2007 diesel Grand Voyager
Starts fine when cold but have increasingly common problems during the day. especially with short trips.
Turns over but won't fire, I find that if I leave it for five minuets it ususally fires up but this is now becoming more frequent and I'm having to squirt easystart into the air intake which is not good.
Had the injectors checked and the low pressure primer pump replaced
This helped for a while, a month or so, but it's back to square one again.
Is this a common issue and what should I look at next.
Thanks
2007 diesel Grand Voyager
Starts fine when cold but have increasingly common problems during the day. especially with short trips.
Turns over but won't fire, I find that if I leave it for five minuets it ususally fires up but this is now becoming more frequent and I'm having to squirt easystart into the air intake which is not good.
Had the injectors checked and the low pressure primer pump replaced
This helped for a while, a month or so, but it's back to square one again.
Is this a common issue and what should I look at next.
Thanks
#2
If you check very recently, this one has been aired. It turned out to be an injector lowering the high-pressure rail-accumulator too far, rendering diffucult starting when hot.
Leedsman.
n.b. -- old trick. Rather than squirting Easy-Start into the diesel air intake, just play a blowlamp in there instead, while cranking. Of course, in the old days, air intakes were metal. So don't set any modern plastic on fire doing it this way!
Leedsman.
n.b. -- old trick. Rather than squirting Easy-Start into the diesel air intake, just play a blowlamp in there instead, while cranking. Of course, in the old days, air intakes were metal. So don't set any modern plastic on fire doing it this way!
#5
Hi
I'm still trying to sort this starting issue out and my garage has tried a few things.
The injectors have been sent away and tested.
New top on the the fuel filter.
Engine bay fuel lines replaced
They think it's air getting into the fuel supply?
It won't start in the morning without pumping priming button, then it fires straight away.
During the day it seems to have a mind ot it's own, sometime staring other time not.
When it won't start I could keep cranking it over all day withput it firing, however if I just sit there for three or four minutes and try agsin it inevitably starts.
Does any of this point to anything I could look at next
Thanks
I'm still trying to sort this starting issue out and my garage has tried a few things.
The injectors have been sent away and tested.
New top on the the fuel filter.
Engine bay fuel lines replaced
They think it's air getting into the fuel supply?
It won't start in the morning without pumping priming button, then it fires straight away.
During the day it seems to have a mind ot it's own, sometime staring other time not.
When it won't start I could keep cranking it over all day withput it firing, however if I just sit there for three or four minutes and try agsin it inevitably starts.
Does any of this point to anything I could look at next
Thanks
#6
if the primer pump is not "hard" then it means fuel is leaking out/back somewhere
You need to look at all the points where that can happen. You say the injectors have been sent away and tested - what tests did they do? Have they looked at the rise time and pressure reading of the rail during cranking?
Fuel can be leaking out of the injectors into the cylinder bores (check oil level has not risen) or out of the leak-off pipes. Any joint can be letting in air though that will usually cause cutting out during acceleration as well.
Regards
Richard
You need to look at all the points where that can happen. You say the injectors have been sent away and tested - what tests did they do? Have they looked at the rise time and pressure reading of the rail during cranking?
Fuel can be leaking out of the injectors into the cylinder bores (check oil level has not risen) or out of the leak-off pipes. Any joint can be letting in air though that will usually cause cutting out during acceleration as well.
Regards
Richard
#7
Thanks for the reply, it's made me remember something
I was stuck behind a very slow car on a single track carriageway for about 20mins at 25mph
Arraived at a duel carriageway and accelorated hard - it cut out and I had to pull over and it went through the usual starting probs - so could it be air
I was stuck behind a very slow car on a single track carriageway for about 20mins at 25mph
Arraived at a duel carriageway and accelorated hard - it cut out and I had to pull over and it went through the usual starting probs - so could it be air