Get A brief history Report: Invest the money upfront and know where your used car has been and if there are any problems or accidents reported. The best reports to get are CarFax and AutoCheck. I recommend getting chevy equinox ecm replacement cost them both because they pull information from different sources. I've come across a clean CarFax report and then found precisely car had frame damage on an AutoCheck have. The thing that you have to do, by whichever methods you have available to you...