Q: Help in pinpointing recent car issues/ performance.

asked by on October 28, 2016

The car stutters when taking off sometimes resulting in misfire very seldom. Check engine light is on. Accelerating is slow and steady can't press pedal completely down or it chugs or jerks. Loss of power on incline. Idles slightly low at a stop with some slight sputtering. The codes came back MAF and Cylinder 4 misfire. Could be faulty. What is the most likely causing this problem. When up to highway speed don't notice any sputtering haven't heard any noises.

My car has 150000 miles.
My car has a manual transmission.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

1996 Ford Crown Victoria overheated and now won't start
Sounds like your Crown Victoria is having a hard time. While being able to turn over but not start is one thing, overheating is another. Overheating in a car is never a good thing. When engine temperatures reach that high,...
Coolant leak from behind the idler pulley
It is more likely that something above or behind the idler pulley is leaking coolant and migrating to other areas, like the idler pulley. It can be the water pump (https://www.yourmechanic.com/services/water-pump-replacement), thermostat housing, or seals. The cooling system should be...
On CNG, engine often give a sound of misfiring and got stop, while on petrol no such issue
Hello. The symptoms you are experiencing can be caused by many things. A few things I would look into are the fuel system, the engine management system, and the ignition system. If any of the components, such as the fuel...
Heat inside car stays warm for minute then blows cold until I turn heat off for a minute and try again.
Hi there. The engine always at operating temperature leads me to believe, the thermostat is not the cause, for no heat inside the vehicle. There are several possibilities for no heat inside, the heater control valve is malfunctioning (https://www.yourmechanic.com/services/heater-control-valve-replacement), the...
Code 0132 and 0138
Hello. Codes like these can be tricky, because they give us a warning that the voltage readings are out of range, but they do not tell you why. The high voltage reading is showing that the air/fuel mixture being processed...
Engine Stutter On Acceleration
It's likely that If you were to scan the engine controller, (ECU) you would probably find several misfire codes. The misfire codes can indicate specifically which cylinder if malfunctioning. Your model car has a history of coil and ignition module...
My clutch pedal won't come back up fully. The main reservoir is full, even over the MAX.
There are typically a few different possibilities for why a clutch pedal will stay on the floor (https://www.yourmechanic.com/services/clutch-pedal-goes-all-the-way-to-the-floor-inspection). It could be a failed clutch master cylinder, slave cylinder, failed fluid line, or the clutch has failed. If there doesn't appear...
Does putting my car into accessory mode count as a key cycle on a scanner?
You have to turn it to on all the way to count as a key on cycle and then back to off for one key cycle.
What is the average cost to replace the top on a 2003 BMW Z4 with an after market top?
Hi Amy. Thanks for writing in today. I am actually in the market for one myself for my 2009 128i and have been pricing them around. Most of the aftermarket BMW tops actually don't fit very well and typically require...

Related articles

P0055 OBD-II Trouble Code: Heater Circuit Resistance (Bank 1, Sensor 3)
P0055 P0055 code definition Heater Circuit Resistance (Bank 1, Sensor 3) What the P0055 code means When this code is set it means that the Engine Control Module (ECM) has detected a problem with the amount of resistance in the...
P0132 OBD-II Trouble Code: O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)
P0132 trouble code definition 02 Sensor Circuit High Voltage (Bank 1 Sensor 1) What the P0132 code means When the P0132 trouble...
P0412 OBD-II Trouble Code: Secondary Air Injection System Switching Valve A Circuit Malfunction
P0412 P0412 code definition Secondary Air Injection System Switching Valve A Circuit Malfunction What the P0412 code means P0412 is an OBD-II generic code that the engine control module (ECM) got input from the air injection system driver that the...