flickering gauages please help

CHEVROLET TAHOE
Avatar
BIGV8JOE
  • MEMBER
  • 3 POSTS
i have a 1999 2 door tahoe with 160000 miles on it. the problem started with a noisey fuel pump. everytime the fuel pump would whine the volts would move up. also my fuel gauge has flickering. i have replaced the fuel pump. noise has stopped but the gauges are still flickering. i had the altanater checked it was good i replaced the belt still no change. im stumped on what to do next.
Jul 28, 2007 at 4:40 AM
Advertisement
Avatar
2CARPRO JACK
  • ✓Experienced Mechanic
  • 11,533 POSTS
When you say flickering do you mean the lighted part or the gauges move back and forth fast?
Jul 30, 2007 at 12:59 AM
Avatar
BIGV8JOE
  • MEMBER
  • 3 POSTS
yes the fuel gauge move back and forth real fast almost like a vibration and the volts moves back and fourth between 14 and 19 like a pulse.
Jul 30, 2007 at 7:08 AM
Avatar
2CARPRO JACK
  • ✓Experienced Mechanic
  • 11,533 POSTS
I have seen the fuel gauges do that, replaced the gauge and all was alright.The volt gauge, check with a meter for steady system voltage at the alt and at any power points.
Jul 30, 2007 at 8:56 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle