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Regin

Regin 8/14/2016

2011 Jeep Patriot Latitude 4 Cyl 2.40L

Transmissions & Drivetrains

Poor Acceleration while driving

Hi sir,
My name is Regin, I am driving a Jeep Patriot 2.4 engine, model 2014. While I am apply the acceleration driving on road, vehicle not getting sudden pulling,speed growing slowly. When I am apply the accelerator again & again the temperature showing high. Awaiting for your reply.

1 Answer


Jimm

Jimm 8/14/2016

If the vehicle is a 2014 model and still under the new car warranty, then recommend to take the vehicle back to the dealership if still under warranty for them to repair or replace - at no cost to yourself.

If the vehicle is a 2011 model and outside the warranty, then here are some diagnostic steps.

First step - have the stored fault codes or check engine light scanned - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA. Then, post a reply as 'add answer' with the specific code for more assistance.

This aspect is important; there may be a fault code stored in the OBD memory which may not be displayed as a check engine light.

Do not skip this important first step - there are literally hundreds of possible fault codes. Avoid wasting/ throwing money at the problem.

Possible Causes of Engine Hesitation or Stumble:

Dirty fuel injectors (cleaning the injectors often fixes this)
Dirty air filter (change filter)
Dirty / clogged fuel filter (change filter)
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

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