i have a 92 gmc sierra 5 speed manual and when i let off gas out side and inside lights dim very low almost off and radio cuts off what is my problem

205

Asked by Prestige Dec 15, 2013 at 12:13 PM about the 1992 GMC Sierra 1500 C1500 SLX Standard Cab Stepside SB

Question type: Maintenance & Repair

i have a 92 gmc sierra 5 speed manual and when i let off gas out side and inside lights
dim very low almost off and radio cuts off what is my problem

3 Answers
199,745

dandyoun answered 10 years ago

Check battery connections. They must be clean and tight. Also check the negative battery connections on the frame and motor. Have battery and alternator tested. Sounds like your alternator might be going bad.

1 people found this helpful.
Mark helpful
205

Prestige answered 10 years ago

i had the truck cranked and running and took the positive wire off battery would that mean my alternator is good?

Mark helpful
199,745

dandyoun answered 10 years ago

Yes and no. If it's starting to go bad it can cause the lights to dim when you let off the gas. Should be putting out 14+ volts. If it's only putting out 12 or so that will keep it running but not carry the load of the lights ect.

Best Answer Mark helpful

Your Answer:

Related Questions

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 63,738 nationwide Sierra 1500 listings starting at $2,000.

ZIP:

Own this car?

Share your experience with others.

1992 GMC Sierra 1500

Write a car review

Review another car

Shortcuts

Search GMC Sierra 1500 Questions

CarGurus Experts

  • #1
    yetilikesbeer
    Reputation
    12,340
  • #2
    dragonflyoffshore
    Reputation
    11,480
  • #3
    John Saffrahn
    Reputation
    11,430
View All

Know more, shop wisely

Search

Related Models For Sale

Used Ford F-150
5,994 Great Deals out of 126,603 listings starting at $1,995
Used GMC Yukon
659 Great Deals out of 11,077 listings starting at $2,900

Used Cars for Sale

2024 GMC Sierra 1500 For Sale
75 Great Deals out of 41,411 listings starting at $28,434
2023 GMC Sierra 1500 For Sale
275 Great Deals out of 4,759 listings starting at $29,999
2022 GMC Sierra 1500 For Sale
163 Great Deals out of 1,632 listings starting at $28,590
2021 GMC Sierra 1500 For Sale
286 Great Deals out of 3,983 listings starting at $19,495
2020 GMC Sierra 1500 For Sale
192 Great Deals out of 2,346 listings starting at $17,990

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. Content will be removed if CarGurus becomes aware that it violates our policies.