2005 Kia Spectra CAR JERKS WHEN GOING INTO FIRST & SECO

2005 KIA SPECTRA
74,457 MILES • 4 CYL • FWD • AUTOMATIC
Avatar
33PEGGYSUE
  • MEMBER
  • 1 POST
My car started jerking really bad when it shifts into first and second. it's fine when it gets past that, but at low speeds iit jerks bad. do you know what could be wrong?
Jan 13, 2010 at 7:33 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Check and test the following below:

Oygen Sensor
Catalytic Converter
Dirty fuel injectors (cleaning the injectors often fixes this).
Bad MAP (manifold absolute pressure) sensor
Bad TPS (throttle position) sensor
Bad or dirty MAF (mass airflow) sensor
Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
Bad gasoline (fuel contaminated with water or too much alcohol)

Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
Wet plug wires
Cap and Rotor

Note:If it doesn't apply,disregard.
Jan 13, 2010 at 8:28 AM
Advertisement