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:

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