CrazySwede
New member
First time poster so please bear with me...
I have a 2001 Jetta TDI (~250k mikes) and the injector pump has recently started leaking from a number different seals. Initially I thought it was just some bad seals , which is may very well be, so I bought the DieselGeek replacement kit with the intention of having a go at it. That said, the more I look into it, I suspect there might be something else going on. When I start the engine, diesel appears to be leaking out of nearly all the gaskets and there is a steady flow of diesel dripping off the bottom of the pump.
Other than the fuel leak, the engine seems to start and run fine. Additionally, I vacuum tested the pump per the DieselGeek video where they vacuum at the diesel return barb it it appears to hold a vacuum. (20 PSI). I am not sure if that implies anything about the seals.
All that said, the sudden onset and the extent of the leaks has me thinking that this may not be a simple seal issue. Perhaps the pressure is too high within the pump or some checkvalve might be stuck? (I was able to push air back up the return line through the filter (and pull fuel through it too) so I don't think the issue is with the return lines. An if I start the car with the return line removed (IP to filter), there is significant flow of fuel. (I am not sure if that is expected.)
Before I start replacing all the seals, does anyone have any thoughts if something else might be going on which I should look into?
Thanks!
I have a 2001 Jetta TDI (~250k mikes) and the injector pump has recently started leaking from a number different seals. Initially I thought it was just some bad seals , which is may very well be, so I bought the DieselGeek replacement kit with the intention of having a go at it. That said, the more I look into it, I suspect there might be something else going on. When I start the engine, diesel appears to be leaking out of nearly all the gaskets and there is a steady flow of diesel dripping off the bottom of the pump.
Other than the fuel leak, the engine seems to start and run fine. Additionally, I vacuum tested the pump per the DieselGeek video where they vacuum at the diesel return barb it it appears to hold a vacuum. (20 PSI). I am not sure if that implies anything about the seals.
All that said, the sudden onset and the extent of the leaks has me thinking that this may not be a simple seal issue. Perhaps the pressure is too high within the pump or some checkvalve might be stuck? (I was able to push air back up the return line through the filter (and pull fuel through it too) so I don't think the issue is with the return lines. An if I start the car with the return line removed (IP to filter), there is significant flow of fuel. (I am not sure if that is expected.)
Before I start replacing all the seals, does anyone have any thoughts if something else might be going on which I should look into?
Thanks!