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Wolfgang, VW Master Technician
Category: VW
Satisfied Customers: 4458
Experience:  Senior VW Master Tech 15 yrs
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Vehicle dies hot won't start until it cools down. no spark

Customer Question

hello vehicle dies hot won't start until it cools down. no spark at the coil. has new cam position sensors
JA: Does the engine turn over? How old is the battery?
Customer: cranks fast
JA: What is the model/year of your VW?
Customer: 2003 vw passat 2.8
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: i am hoping to fix this my self
JA: Anything else you think the mechanic should know?
Customer: speedometer doesn't work
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Submitted: 12 months ago.
Category: VW
Expert:  Wolfgang replied 12 months ago.

Thanks for choosing Just Answer . I'm Wolfgang here to help!!

I am confident we can resolve your problem together. Please
understand that I don't know your skill level. In most cases when you have a problem
with the way the vehicle performs, specialized tooling is required to acquire computer
data/information or engine testing results. We didn’t build these complicated vehicles; we
just diagnose and fix them. Also understand that I can't see, smell, hear, or touch the
vehicle either, so it may take a few replies to get to satisfactory results. I am also going to
direct you with the fastest, easiest and most common things to check first. Please be
patient and permit me to do what I do best.
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through it.
Below is my first answer or request for more information. If you do not understand it, or you need more information from me, or need me to go in more detail.

I need some more information.

The camshaft sesnor which one did you replace ? location ?

is the check engine light on when running?

is the abs/brake light on while running?

any recent repairs prior to this issue?

any recent accidents?


Customer: replied 12 months ago.
Both cam sensors. Engine light on. No abs light. No repairs. No accidents.
Expert:  Wolfgang replied 12 months ago.

ok the most likely sensor that was ignored is the crank sensor . that sensor tells the ecu that the engine is turning and if that is not sensing that it is not turning the engine will not run. A scan test is needed to verify to make sure but i'm 95% positive that is your issue.

when hot the signal breaks down causing a stall untill cooled . the sensor is located on the drivers side lower on the block . when replacing make sure the wire is away of the exhaust manifold.

anything else?

if not.....

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