Quote:
Originally Posted by KarTek
Running a Diesel purge,
replacing the fuel filter and doing an oil and other fluid changes.
I have one bad glow plug which is causing some poor performance in one cylinder.
The injector may be carboned up and spraying poorly. I'd really like to get into that prechamber and inspect it's condition and the condition of the injector nozzle. I'm sure this is contributing to the poorer mileage.
BTW, the car has 136,000 miles and it's getting 24 MPG combo city/hwy and 29 on the hwy only.
Thanks!
|
IMO, it would be a total waste of time. See later.
I'd change all fluids. Go to MB for the trans fluid because you don't have SDS.
For this engine, I would be careful but take out ALL the GPs and change them. Don't forget the anti-seize. GP cannot cause poor performance since they are on only when the car starts up and a few mins after.
If you take out the prechamber, you should have the injectors in your hand. Take those down to a diesel shop and run a test. With that, you will KNOW for sure whether the injectors are working well with good pop off pressure and spray pattern or not. I took the injectors out and checked mine at 100K and got one bad injector. Power and smoothness came when that was cleaned. I would suggest doing it every 100K (just the injectors). I don't waste my time with DP (Diesel Purge or Double Penetration) because it is easier for me to check injectors once every 100K as opposed to fooling with the fuel lines and having them leak. Every time you mess with the lines, you might cause a leak.
Not sure what you should be getting but that sounds about right depending on your right foot. I get 33 cruising only at 85