AARodriguez Corp.
TDIClub Enthusiast, Vendor , w/Business number
I know I've "heard that it can cause low power" but I've never seen a thread that concluded with, "A new lift pump fixed my low power problem"
Anyone?
Anyone?
Can a bad lift pump cause low power?
- Thread starter AARodriguez Corp.
- Start date
PDJetta
Top Post Dawg
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- Nov 6, 2003
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- Northern Virginia
- TDI
- '04 Jetta GLS TDI Pumpe Duce Platinum Grey w/ Leather
I think it can, such as limiting maximum speed and acceleration. Has it ever been replaced? or its flow rate checked?
--Nate
--Nate
AARodriguez Corp.
TDIClub Enthusiast, Vendor , w/Business number
Its definitely limp modish...car has been started a couple times that it wasn't in limp mode, what a BEAST! but then its quickly reverted to a slug
the lift pump has never been replaced...I've got a brand new one sitting in the gargage too, just don't want to throw more parts at problems that aren't "THE" problem
the lift pump has never been replaced...I've got a brand new one sitting in the gargage too, just don't want to throw more parts at problems that aren't "THE" problem
AARodriguez Corp.
TDIClub Enthusiast, Vendor , w/Business number
Yes, but plenty of PD cars work fine with out the "required lift pump"
with that having been said, I can't ignore it, I'll likely replace it tomorrow
with that having been said, I can't ignore it, I'll likely replace it tomorrow
pedroYUL
Veteran Member
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- MI, USA
- TDI
- 2015 Passat CVCA; 2015 GSW CRUA; 2012 wagon CJAA; 2004 wagon BEW
But can you at least hear the pump prime. Did you checked if it pours some 50mL fuel per priming. Those are fairly easy diagnostics, specially after the amount of work you have done to your car
pedroYUL
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- 2015 Passat CVCA; 2015 GSW CRUA; 2012 wagon CJAA; 2004 wagon BEW
Btw, can you pop the valve cover without disconnecting EGR cooler and intake?
I would like to take a peak at the camshaft, specially after a strange even that it was solved with a new MAF, but now I'm paranoid
I would like to take a peak at the camshaft, specially after a strange even that it was solved with a new MAF, but now I'm paranoid
AARodriguez Corp.
TDIClub Enthusiast, Vendor , w/Business number
the lift pump is dead, no doubt about it, it was working recently, but not anymore
you don't need to take the egr cooler off. you do need to take the electronic valve off of the intake though.
just 3 5mm screws
when you look at that cam, you are looking for a 45 degree angle on the cam, instead of a sharp 90. below is a bad cam
the chamfer is completely gone north of the orange marks
you don't need to take the egr cooler off. you do need to take the electronic valve off of the intake though.
just 3 5mm screws
when you look at that cam, you are looking for a 45 degree angle on the cam, instead of a sharp 90. below is a bad cam
the chamfer is completely gone north of the orange marks
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pedroYUL
Veteran Member
- Joined
- Sep 8, 2011
- Location
- MI, USA
- TDI
- 2015 Passat CVCA; 2015 GSW CRUA; 2012 wagon CJAA; 2004 wagon BEW
Thanks for the info. That is doable, I just don't want to spend half a day opening up to just close after a 5-10min observation. I still resent cleaning my intake last year.
Is your car low in power or in real limp? I am no expert but I think cars have to throw codes or even a CEL when going to limp
A PD low in power with a dead lift pump sounds like basic arithmetic
Is your car low in power or in real limp? I am no expert but I think cars have to throw codes or even a CEL when going to limp
A PD low in power with a dead lift pump sounds like basic arithmetic
AARodriguez Corp.
TDIClub Enthusiast, Vendor , w/Business number
its definitely a computer caused limp mode, the car has shown a few seconds of some awesome power
I'm surprised by the no CEL too...I've only seen the limp without cel with a bad MAF
I'm surprised by the no CEL too...I've only seen the limp without cel with a bad MAF
MikeS_18
Top Post Dawg
http://idparts.com/catalog/product_info.php?products_id=1275
I am glad I have a backup sender unit even though I use a lift pump. and for $15 it's a nice troubleshooting tool.
AARodriguez Corp.
TDIClub Enthusiast, Vendor , w/Business number
dang... good price
audiphile
Vendor
or go to your VW dealer and buy it for under $10.. it's on clearance.
AARodriguez Corp.
TDIClub Enthusiast, Vendor , w/Business number
dead lift pump was not the cause of limp mode. I had a spare "smart" actuator, installed it, now the car is golden
As an after thought, as a Malone Tune Dealer I probably could have/should have, just tuned out the "smart" function
As an after thought, as a Malone Tune Dealer I probably could have/should have, just tuned out the "smart" function
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