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post #1 of 2 (permalink) Old 02-08-2011, 02:49 PM Thread Starter
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Unusual problem?

I have a 2001 530I, 120,000 miles. A couple of weeks ago the breather system froze up while it was about -25 degrees. Car thawed out and seemed to be fine. Several days later, it starts fine but about 1 minute into the warm up it starts running very rough. Took it to the shop and was told that the fuel injector o rings were bad and needed to be replaced. Today the shop calls and tells me that did not fix the problem and it now appears that all six of the injectors are leaking fuel during the warm up process. Keep in mind that after the car is warmed up it runs fine.

I am wondering what could have caused all six injectors to go bad at the same time. Is this a common problem or is this somewhat of a mystery. The shop is questioning why they would go bad all at the same time and wants to replace the fuel pump regulator too!

Any opinions or help would be appreciated.
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post #2 of 2 (permalink) Old 02-09-2011, 10:40 PM
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Yeah, your car is in the wrong shop. You got yourself some right fine parts changer pros.
EVERYTHING freezes at -25. Maybe at 10 years that cold could have cracked a gasket or a seal or something. Something like a IAC or a MAF sensor.
Why would your injectors leak fuel only *after* they were fixed? Didn't they do the ol CO2 tailpipe test to see if your car was running rich?
IF it's a real shop AND they suspect the fuel regulator why didn't they just test the fuel pressure and tell you the results?
Are you getting any O2 sensor codes? You have an ABDII vehicle- why don't they just run the codes and print out the results?
It sounds like your car won't be running until after you run out of money.
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