Hey everyone, I'm new to the forum community and need some help(take it easy on me!)
I have a 2001 Audi a6 4.2l Quattro. Sometimes it starts so,etimes it doesn't. When it does not start it normally rough idles and stalls.
I believe I hear the fuel pump when I turn the key but not sure if the module could still cause this. Other research suggest the crank sensor.
I currently have no check engine light codes that deal with starting (just emission codes).
Please let me know what your thoughts are, if you have more diagnosing questions, and possibly prices to fix or DIY guides.
Thanks all
Dopedringz

2001 Audi a6 4.2
2001 Audi a4 1.8t

 

Consider a couple of things, fuel pump isn't a bad thought though

1) when were the coil packs replaced?
2) when were the spark plugs replaced, properly gapped?
3) When were the spark wires replaced.
4) Do you have any cracked hoses or vac leaks you are aware of?

 

I bought the car roughly a year ago. No service records that indicate those items.
What hoses and where are they located to check for leaks/cracks?
Thanks for the quick reply.

 

Also is there anyway to check the functioning of the coil packs etc....also if they have been replaced/need replaced.

 

Hiya

If you don't know about the service history, I'd really recommend to start with my list. They all contribute towards a vehicle not starting.

As for the vac lines, just look and follow hoses. if they show signs of cracking = replace.

 

Took it to my mechanic
Turns put it was the fuel pump. Thanks for your help.

 

Also had them take a good look at everything. No problems with coil packs etc. But they did find bad control arms and brake lines. Also need front pads back rotors. Looking forward to the next couple bills! Hah