Electrical

2004 CHEVROLET TRAILBLAZER
115,000 MILES • 4.2L • V6 • 4WD • AUTOMATIC
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CINDER4062
  • MEMBER
  • 36 POSTS
The first symptom was the engine rpms kept going up and down instead of an even idle. the second was that the battery died and was not being charged. The third is that none of the gauges in the dash are working and the battery light is on. This is still happening even though the alternator has be replaced and the battery was charged at an auto shop. We've checked the fuses and none appear to be bad and now don't have a clue as to what to check next or replace if necessary. Thank you in advance for you assistance and timely response.
Mar 13, 2016 at 9:27 AM
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HMAC300
  • ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
first check battery for condition including load test, most places do will do it for free, this can effect charging. Then check fusible link in picture and grounds, finally have a pro scanner hooked up to see if there is a class 2 data signal problem. Also replace belt and tensioner if over 60,000 miles.
Mar 13, 2016 at 10:11 AM
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CINDER4062
  • MEMBER
  • 36 POSTS
please resend picture of the fusible link and grounds
Mar 14, 2016 at 6:19 AM
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HMAC300
  • ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
Sorry, here it is.
Mar 14, 2016 at 7:28 AM
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HMAC300
  • ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
also try cleanng throttle plate on both sides and iac hole with choke cleaner. some of these the throttle body is bad as well, but try this first
Mar 14, 2016 at 7:29 AM
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