Should there be an overflow tank for the radiator on a 1992 Nissan Sentra?

Should be a drain plug either at bottom or rear of radiator or remove lower hose

No. One fan is for the radiator, and the other is for the condenser. If you have the A/C on, they should both be on. Else, just the one for the radiator, if the thermostat is open.

when should the timing belt be changed on a 2007 Nissan sentra

If your security sensor in your 2001 Nissan Sentra 2.0 is jarred or jammed you should have it replaced.

The 2003 Sentra has a chain not a belt and should in fact last you a lifetime.

The Nissan Sentra should not have any other heater installed due to fire hazards. The stock one is very good.

Open your hood and locate the upper radiator hose coming from the top of your radiator. this hose should go straight to the thermostat housing. You will need to drain the radiator and remove the hose. there should be three ten millimeter bolts hold it on remove the bolts and replace thermostat.

Cylinders compression pressure Sentra 1.8 : 192 psi

If you mean the engine coolant temp sensor it should be on the drivers side of the engine block. Follow your top radiator hose from the radiator to the engine block. near that you should see a sensor (it has a clip on it where the wires attach). I hope my description helps!

I don't care and neither should you!

what type of oil should i change for Nissan sentra 2006 Normally 10W30 or 10W40 is good thicker for older cars 10W40 is thicker FYI

It should be right on the valve cover somewhere.

Should be on either the bottom or the rear lower section of the radiator

the overflow reservoir, it should have marks for full cold and hot

There is no cap for the radiator. To add anti-freeze to your radiator you have to fill it from the overflow. To find that trace a small rubber hose from the top of the radiator to what should be a plastic container

There should be a diagram on the inside of the fusebox cover.

if it has power door locks then it should have keyless remotes

The spark plug gap for a 1999 Nissan Sentra that has a 1.6 liter engine should be set a .044 inches. New spark plugs should not need adjusting as they come preset from the factory.

Should be located at bottom or rear of radiator or remove lower radiator hose

That one should run anytime the a/c is turned on.

In the overflow tank as well as the radiator. You should not do this while the engine is HOT!

The 1999 Nissan Quest radiator fan resistor is attached to the back of the fan motor. The resistor should be labeled as such.

there is an antifreeze overflow tank, look on the radiator next to the radiator cap and there should be a smallish hose, follow it and you will find the tank.

Should be 6.5" in the front doors, and 6.5" on the rear deck.

Depends on exactly what you're having done.