Engine Performance problem
2001 Dodge Truck V8 Four Wheel Drive Manual 210000 miles
My truck sputters and jerks like its dieing when it is hot and gets over 2000 RPMs it has slowly got worse I have done a full tune up changed the coolent temp sensor, the pick up coil, and both o2 sensors and there is no check engine light on.
Could be one of the following below: 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