<prompt> Human: I ask this for a couple reasons. I took one out 1.5 years ago so I could use it for a down payment on my house. It is just taken out of my 401k and I pay it back Bi weekly directly from my paycheck. The interest from the loan goes straight back into the 401k. I have just paid that loan off.I have a loan on my truck and was wondering if it would be a good or bad idea to take a loan from my 401k and payoff the loan from the bank since I would be paying the interest to myself. Thanks for the help.Edit: Thanks for the advice, I get it now why its not a good idea.  <response>: No, dont borrow from the 401k. Just pay it off asap, with extra cash you have. 