A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

Car won't start...need help

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Old Nov 2, 2006 | 07:52 PM
  #1  
Audi[]Viruz's Avatar
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Default Car won't start...need help

Well today I was leaving work started the car and I stay with the car for a bit, I was waiting for someone, when all of a sudden the car turn off. I go to started it again and it only cranks, but It feel like there is no fuel I check the fuse for the fuel pump and thats okay. I check for sparks and thats okay. What could it be? How could I tell if it's the fuel pump or anything related to the fuel system? Maybe the fuel regulator?

98.5Q 2.8
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Old Nov 3, 2006 | 01:47 AM
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Default put ear to fuel pump area as someone turns the key (not cranks)? There's also a relay

forget the one though. Check for voltage at the fuel pump.

Mine went bad and the same thing happened... driving along without problems, car shuts off and just cranks.
I had just filled up that day and replacing the fuel pump with a full tank of cold gas wasn't fun. Not a hard job, just not fun.
IIRC i had to borrow a specific tool to get the thing out. Manual calls for two specific tools but you can remove that huge ring with a mallet and screw driver. If you do have to replace it, double check the wire to the fuel level sensor and / or replace it. I think there is a write-up somewhere on fixing it. Soon after I replaced my fuel pump, that little thin wire broke and my gauge was intermittent, I had to dig into the tank again.
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Old Nov 3, 2006 | 05:49 AM
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Default How can I tell if it's a bad relay...

Can I just check under the dash to see if the relay makes any sound? And if it does would it be the fuel pump? And would any of these issues cause a CEL?
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Old Nov 3, 2006 | 07:16 AM
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Default my memory sucks. I removed the knee bolster, found the relay and my friend tested it.

we also noticed no sound @ the pump. IIRC, We tested for voltage at the pump and had some. This = pump time for me.
I had no CEL or warning when it went. It works fine one second and bad the next. I do remember that it went bad after running the tank VERY low and then filling up. It happened within the next 20 miles from fueling.
Sorry like I said my memory isn't the best. I don't think I had any codes and I don't think the VAG was of any help diagnosing. I think if you put your ear to the access hole you should hear it kick on a few secs to prime the system as soon as you turn the key to the ACC (just before cranking)
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