It sometimes starts and lately won't start at all. I replaced the fuel pump, fuel filter, and relay. No spark as well infrequently. Maybe new crank sensor or cam shaft sensor?
Sounds like a Crank Position sensor. It's hitting at random instead of in tune with where the crank is at any given time. So I say "Yep" to your question "Maybe a new crank sensor?" : )
Testimonial: "Turns out it was camshaft sensor plug not connected"
SOURCE: cranks but wont start, no spark from coil,
Car not starting or turning over indicates towards multiple possibilities. It can be issue with battery or weak battery. But if battery checks out ok, then it can be starter issue or faulty alternator or problem with low fuel pressure or no spark at spark plugs due to dirty spark plugs or faulty ignition coil or injectors getting cracked or dirty and needs to be cleaned. To confirm the problem, the basic troubleshooting is required. Click this link below and follow the troubleshooting:------ http://technoanswers.blogspot.in/2012/02/car-starting-issues.html --------- This will help. Thanks
SOURCE: passat b5 tdi fuel delivery problem
How long are you cranking for,if you have allowed to run out of fuel, it needs to be primed, try pouring diesel into the fuelfilter, but I used tohave the 110bhp AFN passat and it would start after cranking for a while and then cut out, then start but possibly cut out again, then start and give it some throttle, should be fine after that.
SOURCE: 2000 jetta tdi excessive cranking time
check cattaletic converters may be pluged up cause to much back pressure which would resault in exsessive cranking
SOURCE: no spark no fuel no start! replaced and checked
funny thing is I have a 2002 GTI with the exact same problem. have spent the last three days at work trying to figure things out.. best of luckn email me if you figure anything out. [email protected]
SOURCE: 1997 Jetta GT 2.0 Stopped running,cranks,will not start
Checking for spark is really simple while fuel delivery is more complicated because of the the way it is metered for delivery. On VW's a fuel pump relay is used and a jumper cable connected to relay box. This controls the fuel pump to deliver fuel manually. With a fuel pressure gauge connected to the line from the pump continued withing the system, you assess whether you have correct fuel pressure, maintain it within a specif duration. Electronic fuel injectors do stick or stay open causing very poor or no start condition. Make sure you have fuel delivery since you are positive that spark is present.
Your problem may be one of the following:
First check or just replace the fuel filter. Usually located under the car in front of the rear axle, drivers side.
Next, the fuel pump may be worn out. Usually they just stop working (running).
Next, check the fuel pressure regulator. Usually located on the front fuel rail, drivers side.
Is the vacuum line attached? Not leaking or rotted?
Also, do you smell a strong fuel odor when it won't start? May be one or more stuck-open injectors, or the coil pack is bad.
Checking these in the order listed will more than likely fix your problem.
The clicking noise indicates the battery can no longer run the starter, which also means the fuel pump won't run either.
It could be a fuel issue. How old is the fuel filter? Can you hear the pump run for a few seconds when you turn the key on? Try turning the key to ON without trying to start engine three times waiting for the pump to stop running each time. Then try to start the engine. If it starts, Its a form of Vapor lock caused by the extreme heat we have had lately, and a weak fuel pump.
If none of this works, try a new fuel filter first. From there have someone check the fuel pressure regulator and then the pump. If you are in need of a new pump, take my word for it and spend the money to get one from a Dealer, and not from your favorite parts store. Most parts store parts are made in China and they are JUNK.
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I asked about the crank shaft sensor on a 2001 cabrio. the answer said there are 2 bolts.. there's only 1
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