Why is my 2003 Kia Rio backfired and his has hesitate taken off

SOURCE: My 2003 Kia Rio Cinco back hatch latch handle is

We had the same problem.
I took out the bolts outside, then crawled into the back area of the car, and took a screw driver, and slid it along the inner hatch catch, and found the safety latch and released the hatch. Then I took the inside off, and disconnected the handle device from the inside. It was rusted, and broken. I went to Kia, and bought a new one and reinstalled, after greasing the new one up. Took me a while, but they wanted 280.00 in labor, so it was well worth it.
Just be patient and go slow. A good metric socket set will be the best thing, with a regular and phillips screw driver.
Good luck
David

SOURCE: Keys locked in 2003 Kia Rio Trunk

Go to the dealer they can give a copy of the key. Do not forget to bring personal ID and ID identication for car.

SOURCE: knock sensor replacement

Turn ignition off. Disconnect knock sensor 3
-
pin harness connector. Locate knock sensor, on cyli
nder block.
On Optima 2.7L engine, sensors are located on both
sides of cylinder block. . Remove knock
sensor from cylinder block. To install, reverse rem
oval procedure.

SOURCE: Check engine light is on for my 2003 Kia Rio. At

my 01 did that and it was the plug wires it bucked real bad
next time it happened it was just sluggish up hills and light would come on. it was the fuel filter it had 255,000 miles on it

SOURCE: 2003 kia rio I changed the fuel filter the car

had similar problem, 2003 rio 1.6l idle fine and die when trying to accelerate or lurch and die ran fine in reverse change timing belt,wires plugs, had codes for multi cyl misfire and low injector voltage, still same lurch and die. try wiggle test on sensor plugs and main engine harness between battery and engine . i did this and found car smoothed out,tried wiggle again and car died,took harness apart where i wiggled it and found broken wire to crank sensor.good now