Lemon laws generally only cover new cars. If you got a warranty that includes lemon law coverage your car could be covered, but it's quite unlikely, especially when you only got a 30 day warranty and lemon laws require you to take the car in for repair for the same problem several times.
Used cars are very risky, If you search Avvo's legal issues and questions for "used cars," you'll see how often people buy these cars "as is" and turn out unhappy because they don't do their due diligence BEFORE buying. In a lot of cases, it seems that they didn't even read the purchase contract they signed, they just let the car salepeople pressure them, which is the behavior that used car salepeople are famous for.
If you signed a contract, unless it says otherwise, it's binding and you can't rescind (cancel) it. You got a 30 day warranty, and after that it's "as is," meaning the time to have your own mechanic inspect it and review the maintenance records and the CarFax report, etc., was BEFORE you decided to buy this car. You only paid $6,00 for this car, so it must be very used and be quite old, and it's very likely that a judge say that you asumed the risk of the car needing repairs sooner or later, maybe very soon, and maybe for very major and expensive repairs.
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In Louisiana there are a number of protections and laws that give Louisiana consumers opportunities to get justice.
Take a long look at this web-site for a summary of the laws and resources that can help you in this situation: http://www.lemonjustice.com/lemon-law/LA_other_lemon_law.php
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The Lemon Law states that a manufacturer has a legal duty to repair a new motor vehicle.
In Louisiana, this also covers "All vehicles under 10,000 pounds except motor homes, motorcycles, and vehicles used for commercial purposes only." It requires that the manufacturer be allotted 4 repair attempts or that the vehicle is 30 calendar days out of service.
With regards to a used vehicle, depending upon tge present mileage, the car may still fall under the manufacturer's expressed warranty. If it's outside of the manufacturer's warranty, look at the written warranty provided by the dealer.
Additionally if so many things are going wrong with your car in such a short time, you might consider speaking with a consumer law attorney, as tge dealer might be engaged in fraudulent conduct if it can be shown, they knew about the problems with this car but failed to disclose them to you so that you would purchase this car.
HIDEN, ROTT & OERTLE, LLP
Please be advised that the advice provided does not create any attorney/client relationship; that due to the various state laws that the information provided is a general overview of work comp law, which might not be applicable to you, based upon the laws of your state. We will not file anything on your behalf nor protect any statute of limitations which might arise and recommend that you IMMEDIATELY consult legal counsel for advice.