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My truck sometimes does not start and sometimes.

Tiny
MAGICO78
  • MEMBER
  • 2008 CHEVROLET TRAILBLAZER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 6,234 MILES
My truck sometimes does not start and sometimes it does when itdoesnt start everything else works wipers ligths everything. So when it doesnt start I connect a battery booster to the battery and I let it plug for 10 minutes and starts. But its extrange cause I try jumper cables.I try charging battery overnigth and nothing works I check fuses an ok. The only way it will star its with a booster start. What could be wrong with my truck. Tank you for your time.
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Wednesday, February 23rd, 2011 AT 5:46 PM

7 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Have you had the battery and alternator tested?Also did you make sure the battery cable's are clean and tight?Do you have a multimeter?
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Wednesday, February 23rd, 2011 AT 6:00 PM
Tiny
MAGICO78
  • MEMBER
  • 4 POSTS
I test the battery and cables and were good have not test the alternator and I do have a multimeter.
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Wednesday, February 23rd, 2011 AT 6:06 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Did you have the battery load tested or did you just do a voltage test with your meter?Also when it doesn't start does the starter make any noise when trying to start it?
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Wednesday, February 23rd, 2011 AT 6:11 PM
Tiny
MAGICO78
  • MEMBER
  • 4 POSTS
I actually put abrand new battery and no the starter does not make no noise
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Wednesday, February 23rd, 2011 AT 6:39 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Alright next time it won't start check and make sure the large red battery cable at the starter has battery voltage. Then with the key in the start position see if the purple wire to the starter has battery voltage. Let me know what you find.
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Wednesday, February 23rd, 2011 AT 6:49 PM
Tiny
MAGICO78
  • MEMBER
  • 4 POSTS
Ok Itested the red wire on starter and it has power and I check the purple wire and it does not has power.
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Thursday, February 24th, 2011 AT 6:38 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Alright go to the neutral safety switch on the transmission when the starter is inop with the key in the start position you should have battery voltage at the pink wire and the yellow at the neutral safetey switch with everything plugged in with the car in park. Let me know what you find.
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Friday, February 25th, 2011 AT 5:11 PM

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