2010 Volkswagen Van car will not start

Tiny
CODIERUN
  • MEMBER
  • 2010 VOLKSWAGEN VAN
  • 3.8L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 51,000 MILES
Battery has 12.27V, new starter, engine turns freely when turned at the fly wheel and cam shaft. Every time you turn the key, the belts turn about 1inch in both park and neutral.
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Friday, October 30th, 2015 AT 4:41 PM

6 Replies

Tiny
CARADIODOC
  • EXPERT
Charge the battery at a slow rate for an hour, then try to crank the engine. 12.2 volts means the battery is good but discharged. You're pretty close to that. A fully-charged battery will be 12.6 volts. If that doesn't help, measure the voltage right on the battery posts while a helper tries to crank the engine. Next, move the voltmeter probes to the cable clamps and measure again. Tell me what those two readings are.
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Friday, October 30th, 2015 AT 7:01 PM
Tiny
CODIERUN
  • MEMBER
I charged the battery last night at the post 12.96v. At the terminal 12.96v. With acc on 12.26v, turn the key to start 11.80v. I hooked up jumper cables to my other car, at post 13.6v, acc 13.36v, start 12.8v.
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Saturday, October 31st, 2015 AT 8:48 AM
Tiny
CARADIODOC
  • EXPERT
And what happened?

If the starter still cranks slowly or not at all, measure the voltage on the stud on the starter solenoid that the battery cable is attached to, then have a helper crank the engine. To be most accurate, place the other meter probe right on a paint-free surface on the engine block. As long as the voltage there, during cranking, is 9.6 volts or higher, that should be enough for the starter to work properly.
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Saturday, October 31st, 2015 AT 1:15 PM
Tiny
CODIERUN
  • MEMBER
I measured the voltage at the starter solenoid at 10.8v while cranking the engine and it still will not start. The belts on the engine are only moving about an inch.
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Monday, November 2nd, 2015 AT 6:27 PM
Tiny
CARADIODOC
  • EXPERT
That suggests a bad starter. To know for sure really requires a professional load tester so you can measure current flow. Instead, one thing you might want to try first is removing the spark plugs, then see how the engine cranks.
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Tuesday, November 3rd, 2015 AT 6:03 PM
Tiny
CODIERUN
  • MEMBER
I had already pulled the plugs and tried that with the same results. I will have to try another starter in the vehicle.
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Tuesday, November 3rd, 2015 AT 6:10 PM

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