My 2007 kia sportage clicks sometimes will start sometimes not any ideas what to check

Here's a video on changing your rear spark plugs. 2007 Kia Sportage EX rear spark plug replacement

I have a 2007 kia sportage lx 2.0, and just replaced the fuel tank pressure sensor after getting check engine light and consistent P0452. After finding 2 access ports under each back seat looking all over. No sensor found. No helpful info online found anywhere as to location. So bought repair book. It is under car, under evap canister. Hope this helps.

The first thing to do is to check the condition of the battery cables/terminals. Make sure they are clean, free from corrosion and are tight. Also check the black earth lead where it connects to the block/bodywork. A poor earth can cause the symptoms you describe.

If that doesn't work, disconnect the positive battery cable (but bear in mind that you may lose the radio code.. do you know your radio code?) and then disconnect, clean the cables on the starter motor.

If that does not do anything - suspect the starter motor solenoid. It can be removed and cleaned (remove the starter motor first). You can 'bridge' the terminals on the solenoid with a screwdriver to try and start the car... but be careful.

kia sportage 2 0 starter motor
2007 kia sportage 2 0 starter motor Google Search

Check the engine for a Crank angle sensor. if there is one fitted :)

Replace it and re-tune the computer and ignition.

Car no start problem is sometimes very difficult to confirm. You try all the possible things, but still you get no fault and problem is still the same.--------
In that case, you need to check few things individually.
Check the spark,the battery,the crank, the fuel and other most possible parts. Click this link below for more details:-- http://howtobyme.blogspot.com/2011/10/car-troubleshooting-tips.html

Battery either weak or not making a good ground connection. Check batt poles to see if they need cleaning, check water in batt.
Still won't start? Pull batt and take to Auto Zone and have it checked.

check fuel filter/ spark plugs and wires

dus it start win youre hiting bumps or turning or reach a sirtin speed

o yeah take back to dealership where they will fix it for free

Take this car to a shop that has a device to read the car's computer codes. This will probably explain the problem. If this does not, take it to a shop where they have a vacuum gauge and know how to use it.

Good luck