I just got my tranny and rad flushed out today. Just wondering what would happen if they weren't flushed? I bought the car last year and i don't really know much about the flushing of the system, so take it easy on my guys.

 

its like this.. what would happen if u didnt take a shower after a day.. two days.. a week
you'll start reek like hell..

same thing..tranny and rad flush is maintenance work..
keep everything working properly and prevent possible future and more costlier problems..

 

The same thing that will happen if you never change your oil and filter, fuel filter, air filter, spark plugs, belts, power steering fluid, brake fluid, PCV valve, etc. etc.

 

The earlier posts are correct as far as they go. If you are looking for the technical reasons for doing these maintenance steps, here they are:

- The antifreeze/water mix (coolant) in your cooling system over time degrades and becomes more acidic. To protect your cooling system from this acid, you drain, flush and replace the coolant.

- The automatic transmission fluid breaks down over time (particularly from heat) and also becomes dirty. Some trannies have filters to help remove the dirt from the fluid. But for proper lubrication and cooling of your automatic transmission, you change the fluid on a regular basis.

 

You should now flush your radiator coolant every 30,000 miles or 2 years whichever comes first according to the service manual and Haynes. One easy way to determine if the coolant needs to be replaced is to have a pH test done. This involves inserting a strip of paper into the coolant and checking the color (obviously paper supplied by radiator shop). Perhaps you could get by with longer than 2 years, but have it checked 2 years from now.

Given you just got your transmission flushed, you should perhaps have a drain and fill performed 30,000 miles from now and may not require a full flush.