Ignition Problem
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New Member
Joined: Dec 2005
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Ignition Problem
When I turn the key it cranks for a second or two before the car turns on. Even my dads 2001 Dodge Caravan starts pretty much instantly.
Is this a problem that I have or are all the A4's like this?
Is this a problem that I have or are all the A4's like this?
New Member
Joined: Dec 2005
Posts: 63
Likes: 0
Is this happening only in cold weather? My A4 has been in the shop for this for 19 days now.
Tomorrow makes 20 days.
Right now, Audi has no idea what is causing the problem on my car. One other member fixed the problem by replacing the fuel pump with version F - apparently a TSB was just released for this.
Take the car if for service. It should start without hesitation.
Right now, Audi has no idea what is causing the problem on my car. One other member fixed the problem by replacing the fuel pump with version F - apparently a TSB was just released for this.
Take the car if for service. It should start without hesitation.
I have a HUGE list of problems...
AudiWorld Newcomer
Joined: Feb 2006
Posts: 2
Likes: 0
Re: Ignition Problem
Your hard starting issue has been bugging me. I finally found the reason which is inherent in the redesigned A4. A vapor lock situation can occur which results in the need to "crank" the engine longer than the older models. Here's the commentary as well as the designed in "solution" to the issue caused by the new FSI technology:
One other technology advancement of note is the fact that the fuel system is primed when you open the driver's door. The fuel lines sit low on the engine, and because the injectors are squirting into the cylinders instead of behind the valves they are more susceptible to a vapor-lock problem. By priming the system up front, cranking times can be reduced. There is also no fuel line return line, so vapor that might build up from a hot soak situation can be put under high pressure thereby further reducing the effect of vapor-lock while starting the engine.
One other technology advancement of note is the fact that the fuel system is primed when you open the driver's door. The fuel lines sit low on the engine, and because the injectors are squirting into the cylinders instead of behind the valves they are more susceptible to a vapor-lock problem. By priming the system up front, cranking times can be reduced. There is also no fuel line return line, so vapor that might build up from a hot soak situation can be put under high pressure thereby further reducing the effect of vapor-lock while starting the engine.
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