steveinky

'01 A6 2.8 Quattro: Below zero this AM and hard to start. Car popped and bucked and I had to keep my foot on the gas for a few minutes before it ran normally. Had similar experience last year and replaced coolant temp sensor and that fixed it. Same problem again?

Then 10 miles later I smelled gas, pulled the engine cover and the high pressure hose going to the fuel rail was dripping. I shut it off to think about and after it dried off, I started it back up and no drip!~? So I think maybe the super cooled gas shrunk the o-ring enough to allow it to drip. Anyone experienced that?

Any insight is appreciated.
Steve

tester123

Time to change O-Ring and/or fuel line if it is pressure fitted.

"Cold" starts can be troublesome. Add some dry gas in winter to tank to remove any moisture.

Airbag

Sounds like it could have been a frozen fuel return line too.. Keep the car above half a tank during extreme cold weather.