high pressure fuel pump failure 08 GTS....
10-03-2010, 02:42 AM
#1
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high pressure fuel pump failure 08 GTS....
well, i narrowed it down to the HPFP as the culprit. i had the common symptoms, delayed starting ie. 3-5 sec cranking before firing up, limp mode, sluggish & rough idle. i've already replaced rear fuel pumps & filter in the tank, plugs and check the coil packs for cracks..got better a little bit
i have read a few threads regarding HPFP failures in Cayennes and 997 Carreras and also in new BMWs. Do these manufactures get the pumps from the same company?
well, the pepper is out of warranty that's why i'm own my own, the wifey drives alot..
it has been trouble free upto 90K miles and now it can't even get ahead of corolla when merging onto the freeway...
)
where is this HPFP located in the engine compartment? it will make my job alot easier.
thanks...
i have read a few threads regarding HPFP failures in Cayennes and 997 Carreras and also in new BMWs. Do these manufactures get the pumps from the same company?
well, the pepper is out of warranty that's why i'm own my own, the wifey drives alot..
it has been trouble free upto 90K miles and now it can't even get ahead of corolla when merging onto the freeway...
)where is this HPFP located in the engine compartment? it will make my job alot easier.
thanks...
10-03-2010, 12:39 PM
#3
It is on the backside of the driver cam and is very easy to remove! A 10mm flex-able ratching wrench from gearwrench makes it much easier. remove the 3 long bolts and the crash shield then the 3 short that hold the pump in, then rotate the pump to remove the plug, slide out and remove. Also need to remove the two fuel lines! put back together and start car with covers still off to check for fuel leaks. Can be done in 30 min but it is a knuckle buster not alot of room in there!
10-03-2010, 02:30 PM
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HPFP symptoms @ least in my case.
3-5 sec. delay in firing up
engine vibrates when it actually starts
erratic rpm reading then settles down to normal
won't take full throttle when it hits 2700-3K rpm (bogging down)
overall runs like crap
10-03-2010, 02:37 PM
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It is on the backside of the driver cam and is very easy to remove! A 10mm flex-able ratching wrench from gearwrench makes it much easier. remove the 3 long bolts and the crash shield then the 3 short that hold the pump in, then rotate the pump to remove the plug, slide out and remove. Also need to remove the two fuel lines! put back together and start car with covers still off to check for fuel leaks. Can be done in 30 min but it is a knuckle buster not alot of room in there!
now just have to go to my friendly neighborhood stealership to buy the part. I'll keep you guys posted. I appreciate the help, Thanks...
10-03-2010, 05:41 PM
#6
Shouldn't this be covered with the new car warranty?
10-03-2010, 07:13 PM
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10-03-2010, 07:59 PM
#8
Wow, that must be a record. Now I can understand why a fuel pump is needed 
10-03-2010, 08:16 PM
#9
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The HPFP is/was a very big problem with BMW x35's (as in 335/535). So much so the BMW has upped the warranty on them to 100k mi. According to the BMW boards some cars were on their 3rd and 4th HPFP. The wife's car is a 328 and is unaffected by the problem.
Good question whether the mfgrs. are the same.
Good question whether the mfgrs. are the same.
10-03-2010, 09:52 PM
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10-03-2010, 10:28 PM
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The HPFP is/was a very big problem with BMW x35's (as in 335/535). So much so the BMW has upped the warranty on them to 100k mi. According to the BMW boards some cars were on their 3rd and 4th HPFP. The wife's car is a 328 and is unaffected by the problem.
Good question whether the mfgrs. are the same.
Good question whether the mfgrs. are the same.
10-04-2010, 02:16 PM
#12
Do you have a check engine light on?
Just for kicks since you have a DFI motor, you may want to check for carbon build up on the intake valves if possible. This is a common issue on the DFI cars, not all. There may be a way to check for this without pulling the manifold.
When the HPFP starts to fail, I thought they just die without much stories to tell?
Hopefully it's just the HPFP pump!
Just for kicks since you have a DFI motor, you may want to check for carbon build up on the intake valves if possible. This is a common issue on the DFI cars, not all. There may be a way to check for this without pulling the manifold.
When the HPFP starts to fail, I thought they just die without much stories to tell?
Hopefully it's just the HPFP pump!
10-05-2010, 10:31 AM
#14
The V8 Porschephile
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10-05-2010, 11:30 AM
#15
Do you have a check engine light on?
Just for kicks since you have a DFI motor, you may want to check for carbon build up on the intake valves if possible. This is a common issue on the DFI cars, not all. There may be a way to check for this without pulling the manifold.
When the HPFP starts to fail, I thought they just die without much stories to tell?
Hopefully it's just the HPFP pump!
Just for kicks since you have a DFI motor, you may want to check for carbon build up on the intake valves if possible. This is a common issue on the DFI cars, not all. There may be a way to check for this without pulling the manifold.
When the HPFP starts to fail, I thought they just die without much stories to tell?
Hopefully it's just the HPFP pump!