Can't purge injection pump

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bogievw

Veteran Member
Joined
Jun 25, 2007
Location
Madison, WI
TDI
'02 Jetta Wagon- why yes, it is silver. How'd you know?
2000 Golf. It's been sitting a while and now won't start. I ran biodiesel in it years ago. I've been through the "car won't start" thread (option 5: cranks fine but won't start). Fuel system up to the injection pump checks out fine. Moved on to the "bleed/prime fuel system".

Tried to pull fuel through the fuel return line, not only did I not get any fuel after lots of pumping the system was not holding suction.

I'm figuring that I'll need to change the IP seals. Is there anything I'm missing?

Thanks in advance for your help and consideration.
 
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muzy

Veteran Member
Joined
Aug 19, 2012
Location
Southern Alberta
TDI
02 jetta TDI
Read that one too. Takes a lot of pumping with Mitty vac to fill. You should be seeing needle move. Any fuel in clear supply line?
Cheers
 
jokila

jokila

Vendor
Joined
Dec 3, 2004
Location
Houston, Texas
TDI
2003 Jetta GLS, Manual
bogievw said:
2000 Golf. It's been sitting a while and now won't start. I ran biodiesel in it years ago. I've been through the "car won't start" thread (option 5: cranks fine but won't start). Fuel system up to the injection pump checks out fine. Moved on to the "bleed/prime fuel system".

Tried to pull fuel through the fuel return line, not only did I not get any fuel after lots of pumping the system was not holding suction.

I'm figuring that I'll need to change the IP seals. Is there anything I'm missing?

Thanks in advance for your help and consideration.
Click to expand...

Replace the seals. That's the symptoms of a leaky IP. There are about 8 youtube videos on how to do it. Bosch kit is under $25.

You could use pressure to fill the pump. A fuel pump pushing fuel into the IP would fill it up so you could prime the injectors. However, you are postponing the inevitble. Not to mention, some leaky IPs can get worse leaving you stranded, and dripping diesel on the engine.
 
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B

bogievw

Veteran Member
Joined
Jun 25, 2007
Location
Madison, WI
TDI
'02 Jetta Wagon- why yes, it is silver. How'd you know?
Thanks. I ordered all the necessary parts to do the re&re on the fuel adjuster and head seals.

I don't have VAGCom so the question is can I rely on using the hammer mod to set fueling to a point where it's good enough to drive it to my mechanic?
 
jokila

jokila

Vendor
Joined
Dec 3, 2004
Location
Houston, Texas
TDI
2003 Jetta GLS, Manual
bogievw said:
Thanks. I ordered all the necessary parts to do the re&re on the fuel adjuster and head seals.
I don't have VAGCom so the question is can I rely on using the hammer mod to set fueling to a point where it's good enough to drive it to my mechanic?
Click to expand...

That should work.
 
Metal Man

Metal Man

Vendor
Joined
Sep 29, 2001
Location
Sunbury,PA 17801
TDI
1998 NB TDI, 2006 Jetta TDI, 2014 Tiguan gas, , 2019 E Golf X2
I never had much luck priming pumps. The only way that has worked for me was suspending a funnel from the hood with an inline filter to the pump, quick and easy.
 
oilhammer

oilhammer

Certified Volkswagen Nut & Vendor
Joined
Dec 11, 2001
Location
outside St Louis, MO
TDI
There are just too many to list....
CR auxiliary electric pumps work great for this. Don't take much either. They'll fill a VE pump in about 4 seconds. :)
 
B

bogievw

Veteran Member
Joined
Jun 25, 2007
Location
Madison, WI
TDI
'02 Jetta Wagon- why yes, it is silver. How'd you know?
Metal Man said:
I never had much luck priming pumps. The only way that has worked for me was suspending a funnel from the hood with an inline filter to the pump, quick and easy.
Click to expand...
I might just try that. I have the parts on order to replace seals but the car is not parked in a convenient spot for working on it. Maybe I can get her running enough to move the car closer to the garage.

Thanks for the tip.
 
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