The week before Christmas, the high pressure fuel pump under the hood failed, causing the crankcase to fill with lots of diesel fuel. The oil light came on about two hundred feet before my driveway, so it wasn't driven much after the failure occurred.
I towed the car to the dealership where they determined, after I mentioned what the problem was, that the fuel pump had failed, causing fuel to get into the crankcase. Since the car was no longer under warranty, I had to pay $819 to have it replaced and have the oil changed. I'm thinking that when I go pick up the car, it will be running like a champ. The dealership even had the master technician check the cam bearing tolerances and they all came back good. No damage done.
Well, I go to start the car at the dealership this Friday and it starts like a true POS. I waited for the GP light to go out and then cranked it over. It took just a bit, but it cranked and caught. It ran extremely rough and it was smoking like a chain smoking whore... The CEL was on, and I immediately shut it off. I went back inside to the service desk and said that we've got a problem. They had someone start the car again and take it over to their repair bays and scan the car.
It came back with GP failure on 1-4 and something about the EGR having issues... I drove the car home, as the service individual told me it would be okay and proceeded to test all four GP's. All except one were shot, so today I replaced all four. What's scary is that one had the electrode completely missing and two others were way short. The fourth was way short too, but not as bad as the others.
I also pulled the EGR valve and cleaned that extremely well. The butterfly valve that is just upstream from the EGR was clean and moved well. The EGR was definitely gunked up, so I cleaned it well. The movement was good on it. I'm not too sure what else it could be with the EGR system.
So, after explaining all of this, does anyone have any idea's on what could have caused all four GP's to fail while the dealership had it, along with it throwing a code for the EGR system? Could there be an issue with the timing of the HP fuel pump that is causing some issues? I would hate to have to drive it back out to the dealership and cause any more damage...
Also, the dealership is going to be on the hook for breaking my engine cover... The two ears that hold one of the rubber grommets in when you take it off were broken off and now the grommet just stays attached to the ball when you pull the cover off.
I'm looking for any kind of ideas you can think of. I'm a fairly competent mechanic, but this crap about the missing electrodes off the GP's has me concerned, along with the fact that it's not starting very well and smoking like a champ when it does. The EGR system shouldn't have any issues with it, especially since it was not throwing a CEL before I took it to the dealership.
Oh, and I forgot to mention that the GP light goes out and doesn't blink when the car is running.
I towed the car to the dealership where they determined, after I mentioned what the problem was, that the fuel pump had failed, causing fuel to get into the crankcase. Since the car was no longer under warranty, I had to pay $819 to have it replaced and have the oil changed. I'm thinking that when I go pick up the car, it will be running like a champ. The dealership even had the master technician check the cam bearing tolerances and they all came back good. No damage done.
Well, I go to start the car at the dealership this Friday and it starts like a true POS. I waited for the GP light to go out and then cranked it over. It took just a bit, but it cranked and caught. It ran extremely rough and it was smoking like a chain smoking whore... The CEL was on, and I immediately shut it off. I went back inside to the service desk and said that we've got a problem. They had someone start the car again and take it over to their repair bays and scan the car.
It came back with GP failure on 1-4 and something about the EGR having issues... I drove the car home, as the service individual told me it would be okay and proceeded to test all four GP's. All except one were shot, so today I replaced all four. What's scary is that one had the electrode completely missing and two others were way short. The fourth was way short too, but not as bad as the others.
I also pulled the EGR valve and cleaned that extremely well. The butterfly valve that is just upstream from the EGR was clean and moved well. The EGR was definitely gunked up, so I cleaned it well. The movement was good on it. I'm not too sure what else it could be with the EGR system.
So, after explaining all of this, does anyone have any idea's on what could have caused all four GP's to fail while the dealership had it, along with it throwing a code for the EGR system? Could there be an issue with the timing of the HP fuel pump that is causing some issues? I would hate to have to drive it back out to the dealership and cause any more damage...
Also, the dealership is going to be on the hook for breaking my engine cover... The two ears that hold one of the rubber grommets in when you take it off were broken off and now the grommet just stays attached to the ball when you pull the cover off.
I'm looking for any kind of ideas you can think of. I'm a fairly competent mechanic, but this crap about the missing electrodes off the GP's has me concerned, along with the fact that it's not starting very well and smoking like a champ when it does. The EGR system shouldn't have any issues with it, especially since it was not throwing a CEL before I took it to the dealership.
Oh, and I forgot to mention that the GP light goes out and doesn't blink when the car is running.
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