What would be the estimate grand total to fix this problem?

So thats prolly the timing chain tensioner. An my shop charges around $350-$450. Including parts ($70-$100) an labor ($250-$350). Just depends on the shop an how nice they are. Labor is whats really gunna get. But if u go buy the part ur self an asl them to install u could save some money on the labor

Yes, they are likely saying timing chain. The trouble is, there could be additional engine damage. So if you plan on buying it, you are taking a chance that you may get away with just the timing chain OR you may need to replace the entire engine. Be wary unless you can do the work yourself.

According to the Repair Pal web site: The average cost for a timing chain replacement is between $1,334 and $1,609. Labor costs are estimated between $900 and $1137 while parts are priced between $434 and $472. Estimate does not include taxes and fees.