If you are looking on car fax and you have an older vehicle, the VIN may not follow the current standard. Since 1981 US vin's have had 17-characters. If the vin is less than 17 characters, it was probably built before 1981 and might not be recognized by normal means. You can find out what makes up the vin by
---} Checking out VINQuery {---
---} Checking out VINQuery {---
