I need to rent a car for 2 days but the only credit card I have doesn't have a big enough limit to be authorized by most of the rental companies. I am willing to leave a cash deposit but cannot find a car rental company that accepts cash in lieu ot the credit card for deposits

Call the card company and ask if you can increase the limit. That would probably be easier to do than what you're trying, provided that your credit is okay.

You won't. If you leave cash equal to the value of the car, you can get a car.

You didn't mention which state you live in, so it was hard to find you an answer. Check out this website where you can check by state where you can do a cash-only rental. Good luck!
http://www.bnm.com/cash.htm
Also try Enterprise, some locations will allow a cash-only rental. Don't know if you have a debit card or not, but they are also one company that will let you use it.

You didn't mention which state you live in, so it was hard to find you an answer. Check out this website where you can check by state where you can do a cash-only rental. Good luck!
http://www.bnm.com/cash.htm
Also try Enterprise, some locations will allow a cash-only rental. Don't know if you have a debit card or not, but they are also one company that will let you use it.