Melvin C. Yowser
New Member
- Joined
- Apr 27, 2007
- Messages
- 8
- Reaction score
- 0
Good evening!
This is the current score with my 2000 (W202) C220 CDI. It won't warm start. New battery, and plastic fuel lines. I stuck up a post in January and Crank sensor was suggested. I've left it until now to persue things further as the weather is more conducive for crawling underneath the car. The car wouldn't even start from warm when I sprayed in a load of Easy Start. So I had a Merc specialist change the CPS last Friday. After waiting all this time to change it myself, when I actually got underneath the car I could barely feel it let alone see it! Suffice to say, it still won't warm start! However, it would then start warm with Easy start. But by the 3rd warm start on Sunday, spraying Easy Start won't work anymore! The garage told me their diagnostic machine reported a Cam sensor fault - but that's just a red herring, isn't it?!
So I thought I'd have a go at trying an improvised leak off test. When I tried just pulling off the spill pipe one injector at a time I got a tiny bit of diesel out of injectors 1,2 and 3 and much more out of 4. However I was concerned that this additional diesel was coming out of the spill return that was connected to the other injectors, rather than injector 4 itself. So I tried removing the spill rail from all the injectors and turning the engine over. Lots of diesel came out of all the injectors! So it's all a bit inconclusive, really!
My next plan is to get some bottles and tubing so I can measure how much diesel comes out. My question is how much needs diesel needs to come out of an injector on one cranking cycle to confirm it's definately faulty?
Any advice would be greatly appreciated!
Pauly.
This is the current score with my 2000 (W202) C220 CDI. It won't warm start. New battery, and plastic fuel lines. I stuck up a post in January and Crank sensor was suggested. I've left it until now to persue things further as the weather is more conducive for crawling underneath the car. The car wouldn't even start from warm when I sprayed in a load of Easy Start. So I had a Merc specialist change the CPS last Friday. After waiting all this time to change it myself, when I actually got underneath the car I could barely feel it let alone see it! Suffice to say, it still won't warm start! However, it would then start warm with Easy start. But by the 3rd warm start on Sunday, spraying Easy Start won't work anymore! The garage told me their diagnostic machine reported a Cam sensor fault - but that's just a red herring, isn't it?!
So I thought I'd have a go at trying an improvised leak off test. When I tried just pulling off the spill pipe one injector at a time I got a tiny bit of diesel out of injectors 1,2 and 3 and much more out of 4. However I was concerned that this additional diesel was coming out of the spill return that was connected to the other injectors, rather than injector 4 itself. So I tried removing the spill rail from all the injectors and turning the engine over. Lots of diesel came out of all the injectors! So it's all a bit inconclusive, really!
My next plan is to get some bottles and tubing so I can measure how much diesel comes out. My question is how much needs diesel needs to come out of an injector on one cranking cycle to confirm it's definately faulty?
Any advice would be greatly appreciated!
Pauly.
