Voltage problem

Asked by Aug 14, 2017 at 11:09 PM about the 2008 Chevrolet Silverado 1500 LS Crew Cab

Question type: Maintenance & Repair

I wanted to knw,I have a 2008 silverado 4.8 lights
don't flicker but truck runs like it is missinr misfire
can anyone blow me please? Or does a bad
alternator could do that without showing. Artery
light

2 Answers

104,365

An alternator that has dropped voltage that far will have dim lights, turns signals that flash really slow just before the engine quits running due to low voltage, usually the charge light will be on and if you have a voltmeter it will be in the red on low voltage. Engine misfire can be bad plugs, injectors, intake manifold leaks, wiring, etc. Have you pulled the codes to see if anything is in memory or a hard fault?

195

A lower charging voltage means less power to the Engine Control Unit. and a lower voltage output to the actuators. Check the charging voltage to the battery first.

Your Answer

Chevrolet Silverado 1500 Experts

  • #1
    John Carson
    Reputation
    2,740
  • #2
    Rowefast
    Reputation
    2,030
  • #3
    Andrew Olsen
    Reputation
    1,740
View All

Related Models For Sale

Used GMC Sierra 1500
246 Great Deals out of 11,497 listings starting at $399
Used Ford F-150
659 Great Deals out of 13,644 listings starting at $3,000
Used Chevrolet Silverado 2500HD
12 Great Deals out of 1,300 listings starting at $4,995
Used Dodge Ram 1500
52 Great Deals out of 505 listings starting at $3,488
Used Toyota Tundra
49 Great Deals out of 1,428 listings starting at $2,500
Used Toyota Tacoma
41 Great Deals out of 1,150 listings starting at $7,950
Used Chevrolet Tahoe
7 Great Deals out of 807 listings starting at $3,995
Used Chevrolet Colorado
21 Great Deals out of 2,119 listings starting at $1,999
Used Ford F-250 Super Duty
34 Great Deals out of 973 listings starting at $2,475
Used GMC Sierra 2500HD
25 Great Deals out of 1,349 listings starting at $3,990
Used Dodge Ram 2500
6 Great Deals out of 87 listings starting at $1,995

Used Cars For Sale

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.