423-401-0588 🔧 8307 Dayton Pike

Keeney Auto & Diesel

Keeney Auto & DieselKeeney Auto & DieselKeeney Auto & Diesel

Keeney Auto & Diesel

Keeney Auto & DieselKeeney Auto & DieselKeeney Auto & Diesel
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      • Specialty & Diagnostics
      • Auto-Electric Diagnostics
      • Module Programming/Coding
      • Advanced Programming
      • Light-Duty Diesel Service
      • NVH Diagnostics
      • Pre 1996 Diagnostics
      • Classic Car Repair
      • Performance & Aftermarket
      • Fluid & Maintenance
    • Contact & Estimates
    • Vehicle Issues Solved
      • Battery Dies Overnight
      • Cranks, but Won't Start
      • Intermittent No Crank
      • Starts Then Stalls
      • Fuses Keep Blowing
      • RPM or Idle Fluctuates
      • Lights Flicker Randomly
      • Fuel Pump Has No Power
      • Warning Lights On
      • Cooling Fans Stay On
      • New Alt—Still No Charging
      • Startup Makes Noise
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  • Home
  • Auto Services
    • Specialty & Diagnostics
    • Auto-Electric Diagnostics
    • Module Programming/Coding
    • Advanced Programming
    • Light-Duty Diesel Service
    • NVH Diagnostics
    • Pre 1996 Diagnostics
    • Classic Car Repair
    • Performance & Aftermarket
    • Fluid & Maintenance
  • Contact & Estimates
  • Vehicle Issues Solved
    • Battery Dies Overnight
    • Cranks, but Won't Start
    • Intermittent No Crank
    • Starts Then Stalls
    • Fuses Keep Blowing
    • RPM or Idle Fluctuates
    • Lights Flicker Randomly
    • Fuel Pump Has No Power
    • Warning Lights On
    • Cooling Fans Stay On
    • New Alt—Still No Charging
    • Startup Makes Noise
  • About
  • Sportbike Suspension
  • Reviews & Social
  • Project Gallery
  • Training
  • Blog
  • Careers

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Lights Flicker Randomly

Dashboard or Headlights Flickering? It’s Not Just Annoying..

Flickering headlights, under dash lights, or dashboard lights in your vehicle isn’t just annoying—it’s a sign something deeper is off. 


Whether it’s your dashboard lights, headlights, or under dash lights — lights flicker randomly when there’s an unstable power or ground path, failing voltage regulator, corroded grounds, or intermittent module communication. Irrespective, testing here in Soddy-Daisy, Lakesite, and Middle Valley goes beyond parts swapping. 


Live voltage stability is captured under load.  Grounds are tested dynamically.  The actual cause is found—without guessing.

Digital multimeter under hood with headlight and partial engine view

Under Dash & Dashboard Lights Flicker Randomly in Soddy-Daisy

Under Dash & Dashboard Lights Flicker Randomly in Soddy-Daisy

Under Dash & Dashboard Lights Flicker Randomly in Soddy-Daisy

  • Weak ground straps 
  • Corroded connectors 
  • Voltage drop across underhood fuse panels 
  • Body control module faults 
  • Intermittent relays or ignition switch wear

This Shop Fixes the Source, Not the Symptom

Under Dash & Dashboard Lights Flicker Randomly in Soddy-Daisy

Under Dash & Dashboard Lights Flicker Randomly in Soddy-Daisy

 Flickering means voltage fluctuation.  We don’t throw alternators at the issue — we trace it with a scope and track down the root cause. 

Serving Soddy-Daisy and the Greater Chattanooga Area

Under Dash & Dashboard Lights Flicker Randomly in Soddy-Daisy

Serving Soddy-Daisy and the Greater Chattanooga Area

Many other places don’t even own a lab scope.  We use one on nearly every diagnosis.  That’s why clients and shops alike send their toughest electrical problems here. 

Keeney Auto & Diesel, LLC

Est. 2023

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