Q: Car started lurching and sputtering while driving

asked by on

My Jeep just started lurching and sputtering while driving. Got it to completely turn over once after it died on the road. Since then I've tried, and it'll start firing intermittently but can't get it to fully start. I got a P0107 OBD code, so it's a manifold pressure issue.

There’s an easy way to see if the MAP sensor is to blame and that is to disconnect it. Then try to start the engine. The engine will run without it using other sensors. But from your description, that doesn’t sound like the culprit. I would focus on parts that the engine can not run without. I’m going to assume the problem is not mechanical. Check the ignition coil for a strong spark and the coil wire going to the distributor. The most likely part would be the crankshaft position sensor. They usually fail when hot and can give the PCM a “dirty” signal. Enough to make it sputter, but not start. They can be checked with a lab scope or you could just try one. A qualified mechanic from YourMechanic can come out and diagnose your car’s starting issue and determine what repairs are needed.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car started lurching and sputtering while driving

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

Get a quote

What others are asking

Q: My automatic 2009 Jeep Wrangler shows 4 codes: P0562, P0306, C00377 & B2100.

Hi there, thanks for writing in. I would suggest replacing the battery first. A battery at 10V usually means one of the cells has failed. The P0306 code points out a misfire on cylinder 6. Since it is only one...

Q: My car keeps cutting off when I put it in reverse and sometimes when it idles.

Hi There, Based upon what you are describing and how the car responds to load, it sounds like you may have a faulty MAP sensor. The Manifold Absolute Pressure (MAP) sensor senses engine load and generates a signal that is...

Q: What causes the fuel pump to keep burning out?

The first thing to come to mind is the quality of your replacement pumps. There are many manufacturers in the business of making inferior pumps and selling them for a tempting price. These are often what you get at the...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.