Does the volt meter read too high?

Asked by Sep 20, 2014 at 10:04 PM about the 2010 GMC Sierra 1500 SLT Crew Cab 4WD

Question type: Maintenance & Repair

Had a short in the rear view mirror.  Now replaced.  Now noticing the volt meter rides
above 14 (best guess is about 15v, looking at the gauge.   Only comes down slightly
when running at highway speeds for 30 minutes.   Have had truck for the past 3 years
and just is not the same indications it has always had. Any ideas on what may be causing
this?

4 Answers

32,775

Best thing is to have the alternator checked out. AutoZone and places like that for free. It might just be a coincidence.

Thanks mark. But just got back from Gmc dealer (they had to replace the mirror)and they said the diagnostics alternators etc is working within specs. Just that ever since I have had this truck and I bought it new, it always has settled in at 14v, no it does not. Just wondering if the short caused more issues not yet discovered?

32,775

It could just be the gage. If GM gave you a green light then you should be fine. Just keep an eye on things.

Thanks Mark

Your Answer

Add photo

Related Questions

  • High Oil pressure reading, what will cause it? 2 answers

    High oil pressure reading on gauge. Is this something that will harm my engine? and what is casuing this. oil level ok, and no leaks.

    2003 GMC Sierra 1500 STD Extended Cab SB

    -

    Maintenance & Repair

  • Truck won't start 40 answers

    Recently I have experienced starting issues. One minute it starts and runs great, next time I try to start it it turns over but won't start. Let sit for awhile, turn key, won't start, turn key off...

    1988 GMC Sierra 1500 C1500 Standard Cab SB

    -

    Maintenance & Repair

  • headlights 3 answers

    passenger headlight will not work ,bulb is good so are the fuses & relay replaced switch but did not fix problem any suggestions on where to go from here

    2006 GMC Sierra 1500 SLT Crew Cab 4WD 5.8 ft. SB

    -

    Maintenance & Repair

  • After installing new distributor,why is oil pressure high,and water temp low? 1 answer

    Ive set timing,by tdc,twice now,and it still reads 60 psi oil pressure,& about 100° water temp

    1996 GMC Sierra 1500 C1500 SL Extended Cab LB

    -

    Maintenance & Repair

  • oil gauge is reading high all the time in my 2005 yukon xl 2 answers

    my oil pressure gauge is reading high and check engine light is on

    GMC

    -

    Maintenance & Repair

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 64,186 nationwide Sierra 1500 listings starting at $2,275.

ZIP:

Search GMC Sierra 1500 Questions

GMC Sierra 1500 Experts

#1 dragonflyoffshore
dragonflyoffshore
Reputation 4,850
#2 John Saffrahn
John Saffrahn
Reputation 3,420
#3 Glenn Clingenpeel
Glenn Clingenpeel
Reputation 3,020
View All

Related Models For Sale

Used Chevrolet Silverado 1500
2,014 Great Deals out of 157,318 listings starting at $1,995
Used Ford F-150
2,425 Great Deals out of 209,613 listings starting at $895
Used GMC Sierra 2500HD
124 Great Deals out of 13,693 listings starting at $2,650
Used Dodge Ram 1500
442 Great Deals out of 11,502 listings starting at $1,950
Used Toyota Tundra
555 Great Deals out of 31,674 listings starting at $2,800
Used Ram 1500
973 Great Deals out of 114,299 listings starting at $6,000
Used Toyota Tacoma
552 Great Deals out of 37,021 listings starting at $2,950
Used GMC Yukon
410 Great Deals out of 16,128 listings starting at $2,499
Used Chevrolet Silverado 2500HD
353 Great Deals out of 25,919 listings starting at $1,250
Used Chevrolet Tahoe
621 Great Deals out of 27,509 listings starting at $600
Used Ford F-250 Super Duty
378 Great Deals out of 46,992 listings starting at $400
Used Chevrolet Camaro
150 Great Deals out of 35,530 listings starting at $1,995
Used GMC Canyon
101 Great Deals out of 7,438 listings starting at $2,800

Used Cars For Sale

2017 GMC Sierra 1500 SLT Crew Cab 4WD For Sale
10 Great Deals out of 11,497 listings starting at $37,405
2016 GMC Sierra 1500 SLT Crew Cab 4WD For Sale
29 Great Deals out of 870 listings starting at $35,067
2015 GMC Sierra 1500 SLT Crew Cab 4WD For Sale
39 Great Deals out of 1,232 listings starting at $29,700
2014 GMC Sierra 1500 SLT Crew Cab 4WD For Sale
39 Great Deals out of 1,292 listings starting at $22,650
2013 GMC Sierra 1500 SLT Crew Cab 4WD For Sale
9 Great Deals out of 281 listings starting at $20,995