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gomi_otaku
gomi_otaku, VW Technician
Category: VW
Satisfied Customers: 2643
Experience:  VW FastTrack '00-'01, VW Academy Chicago and Seattle '00-present, VW Certified
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99 passat: turbo..wont start..changed ignition module, still wont turn

Customer Question

99 passat 1.8L turbo gasoline wont start wont turnover. took out starter had it checked,starter is good, have all power. changed ignition module, still wont turn over. what else can i check
Submitted: 5 years ago.
Category: VW
Expert:  gomi_otaku replied 5 years ago.
When you say it won't turn over- you mean when you turn the key to "Start" that the engine won't turn at all, or cranks but will not start? Sorry to be basic but some people confuse the terms. And the ignition module you changed is the one on top of the airbox?
Customer: replied 5 years ago.
i mean it wont crank at all. wont turn at all.and correct the ignition module is on top of the airbox
Expert:  gomi_otaku replied 5 years ago.

You should check the signal wire at the starter to see if there is 12v when the key is turned to "start". This would require a voltmeter (preferred) or a test light (will tell you if you have voltage, but now how much) and may require a second person. If not it is likely that you have a bad ignition switch electrical portion, or possibly damage in the wiring to it (I have seen the wires crack from the steering column being adjusted up and down too much)

You can also try turning the key to on, and jumping power from the main cable at the starter (always battery voltage) to the signal terminal on the starter, and see if it starts. Make sure the vehicle is not in gear and parking brake is locked.

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