2007 Hummer H3 starting problem

Asked by Christie Oct 20, 2019 at 02:43 PM about the 2007 Hummer H3

Question type: Maintenance & Repair

I have problems starting my H3 sometimes just fine
other times no charge. I have replaced the battery 3
times thinking that I had a faulty battery even
switched brands. Had the alternator and starter
checked. Everything checks out fine. I have recently
realized that cooler weather seems to affect it as I
am starting to have same issue again with colder
weather moving in. I’m dumb founded, any advice?

2 Answers
20

BlondeBeautyDD answered 4 years ago

Please somebody answer the above ?. I have the same problem and have spent over $1,300.00. Dealer cheated me by replacing stuff that was not the problem and never backed up their promise of satisfaction. Process of elimination at my expense is not honest. The Dealership was #Classic #Chevrolet. The HummerH3 2010 is now in a private shop, and I'm praying for a solution. Anybody???????? Signed....Cheated in Grapevine by Stealership who are #crooks. #JWPOWERS worst #Stealership in #Grapevine Texas. #Worst #Auto #Repair

2 people found this helpful.
Mark helpful

Justryin2help answered about a year ago

Check on your O2 sensors your upstream and your Downstream they can make your truck run funky if they went bad and they're not that expensive around 50 bucks a piece or so . you're Upstream sensor is located on passenger side motor by the firewall your Downstream sensor is down by the cats . I hope this will help you and I really hope this will fix it for you

Mark helpful

Your Answer:

Related Questions

  • 2007 Hummer H3 starting problem 2 Answers

    I have problems starting my H3 sometimes just fine other times no charge. I have replaced the battery 3 times thinking that I had a faulty battery even switched brands. Had the alternator and start...

    2007 Hummer H3

    -

    Maintenance & Repair

  • h3 hummer 2007 brake problem 2 Answers

    while driving my h3 hummer I cant over 30 miles per hour the car also will stop when i take my foot off pedal and the abs traction comes on. I had just had right axle and caliber replaced along with...

    2007 Hummer H3

    -

    Maintenance & Repair

  • 2007 Hummer h3 2 Answers

    I have a 2007 Hummer h3. I have had a miss and replaced the coils plugs and injectors. And check engine light went off. After three days the light came back on saying fuel cap or running lean. Wh...

    2007 Hummer H3

    -

    Maintenance & Repair

  • Hummer H3 2007 engine into 2006 car 1 Answer

    Hi. Please, I had to replace my Hummer H3 2006 engine with another engine and it happened to be 2007 . Problem is starting. What should be changed or done in addition to the engine replacement to ...

    2006 Hummer H3

    -

    Maintenance & Repair

  • 2007 H3 Hummer stopped as I was driving? 8 Answers

    My H3 Hummer stopped instantly as I was driving and will not crank. The lights and radio both comes on. Has anyone had this problem?

    2007 Hummer H3 4 Dr Base

    -

    Maintenance & Repair

Shortcuts

Search Hummer H3 Questions

CarGurus Experts

  • #1
    cocod
    Reputation
    2,050
  • #2
    HummerGirl
    Reputation
    1,590
  • #3
    PatriciaDoss
    Reputation
    1,390
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Hummer H2
29 listings starting at $17,500
Used Jeep Wrangler
137 Great Deals out of 5,973 listings starting at $6,500
Used Hummer H2 SUT
4 listings
Used Chevrolet Silverado 1500
204 Great Deals out of 8,074 listings starting at $3,000
Used Jeep Grand Cherokee
117 Great Deals out of 3,534 listings starting at $4,950
Used Hummer H1
3 listings
Used Chevrolet Corvette
20 Great Deals out of 707 listings starting at $10,989
Used Chevrolet Tahoe
11 Great Deals out of 839 listings starting at $9,980
Used Toyota 4Runner
21 Great Deals out of 539 listings starting at $7,700
Used Toyota FJ Cruiser
20 listings starting at $16,995
Used GMC Sierra 1500
143 Great Deals out of 8,222 listings starting at $3,000
Used Ford F-150
325 Great Deals out of 13,693 listings starting at $3,800
Used Ford Explorer
61 Great Deals out of 2,066 listings starting at $6,990

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.