No power when it warms up

Tiny
DAVFORYOU
  • MEMBER
  • 1999 CHEVROLET BLAZER
  • 4.3L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 16,000 MILES
My blazer has no power when you step on the gas after it warms up an the voltage needle is going up an down not charging the battery when you step on the gas
Saturday, February 6th, 2016 AT 4:17 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,712 POSTS
This sounds like it can be two separate problems, the low power sounds like the cat can be plugged while the voltage meter problem sounds like the alternator is going out, here are links to check both

https://www.2carpros.com/articles/engine-has-low-power-output

and

https://www.2carpros.com/articles/how-to-check-a-car-alternator

Please let us know what you find so it will helps others
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Monday, March 7th, 2016 AT 10:55 AM

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