In this day and age when the you can no longer believe the economy, "no credit check" and "buy here, pay here" policies that some used car dealerships have can be a refreshing change of pace. Besides, the most essential things like cars have almost gotten out of most people's reach, and they have become something of a luxury. While "No credit check" and "Buy here, pay here" signs make things much easier for you, but still make sure to check the conditions of the cars and do a thorough test. Here's how to do a component by component test when you decide to buy a used car from a dealership with "no credit check" and "buy here, pay here" policies:

1. Engine: The car should start quickly and turn over smoothly. Push the accelerator down and check for warning signs. A blue or white smoke both indicate the engine needs rebuilding or replacement, in both cases you end up paying big amounts. Check thoroughly for leaks under the car too.
2. Transmission: Well maintained cars should ideally have smooth transmissions without any loud grinding noises. The fluid in the transmission should be pink without any burnt smell. Replacing the transmission is very expensive so check for small details like the pedal range at which the clutch activates very carefully before making any decisions.
3. Body: The body should be straight with a uniform paint job. If the colour looks even a little botchy then it generally means that an inferior paint job has been applied. In older cars it might also mean an accident or something of that sort. Also, check rigorously for rust along the whole body and under the car too. Even a little rust may grow very quickly and eventually destroy the whole car.
4. Cooling System: A leak in the engine compartment or moisture in the passenger compartment floor could usually means a faulty cooling system. Check if the coolant is clean in the radiator, a dirty fluid could be due to bad maintenance or a problem in the internal cooling system. Bad news in both cases.
5. Suspensions: Check the car's suspensions by taking it out for a test drive. A test drive is not only important for checking the car's suspensions but also the whole car. Though the suspensions can either make or break the car's whole feel and driving experience, a test drive will also make apparent the odd ends that stick out, if at all. 

Those were the component by component breaks down of the used cars test you can take on the cars you buy from a dealership with "Buy Here Pay Here" or "No Credit Check" policies.