1998 e300 td - laboured starting up

[mojo7676]

I've done a search and can't seem to find anything other than stuff i already sort of know. For a couple of days now, it takes ages for the engine to start - lots of long cranking, some spluttering then eventually it starts. Now i've read about leak o rings on the clear fuel line assembly but i had the pipes and seals replaced about 4k miles ago. I did notice, however, that this neew starting trouble seems to have coincided with driving through a rather large, but not too deep, puddle of rain the other day. Any thoughts? thanks. mojo. ps. still lousy mpg (15-18 uk mog)... but going in for new injector tips this weds. will post results within a week or two after driving.

 

[Parrot of Doom]

First thing I'd do would be to remove the air filter and make sure its dry.

 

[wireman]

Have the compression checked while the injectors are out, it could be water damage to the pistons or valves etc.

 

[mojo7676]

thanks for the comments - will check a/f asap; will ask mech to test compression. today, however, started first time - back to normal. not sure if it's relevant, but if i recall correctly, the long cranks only happened while parked, front facing up, on a hill.

 

[Parrot of Doom]

That would be air leaking into the fuel system then.

 

[mojo7676]

update -

went in for retipping of injectors today. mech tested them and said they were fine and suggested i waste no more money. so i didn't. a/f dry as a bone. car still seems to be starting okay - might have been the water/hill thing - drawing air when front pointing upwards?

 

[Parrot of Doom]

Fuel draining back into the tank as air enters the system.

 

[mojo7676]

i understand. thanks again.