2000 Audi A4 can not start when hot smells like flooding

2000 AUDI A4
76,000 MILES • 6 CYL • AWD • AUTOMATIC
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NATLURU
  • MEMBER
  • 2 POSTS
after driving even few miles while restarting enginekeeps cranking but does not start and smells like flooding can not tell when it does it like that.
we replaced fuel filter, fuel pump and sensor still same problem. can you help us.
Jul 22, 2009 at 6:30 PM
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DUBTECH
  • CAR REPAIR CONTRIBUTOR
  • 159 POSTS
If I am reading the post correctly you're having a problem starting only when the engine is warm/hot.

A couple of common problems with these cars is air leaks and engine coolant temp sensors. The smell of flooding (or raw fuel I assume) would be more likely related to a faulty coolant temp sensor. They short out internally and set the fuel mixture (rich) for a freezing temperature. Was that the "sensor" you replaced?

Crank Position Sensors are also known to fail when hot and give similiar symptoms, but not as common on VW/Audi.
Have you checked the control modules for any codes? Even if the MIL isn't on, there could be some useful data stored in the ECU.
Jul 23, 2009 at 11:22 PM
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