Skip the auto shop - Our mechanics make house calls

Q: Engine idles rough sometimes and looses power.

asked by on

Sometimes when you stop it idols down and jumps up and down. You can be driving and it loses power you push the gas and nothing happens when it does that and you let off the gas it idols way down and then chugs up and down

My car has 260000 miles.
My car has a manual transmission.

Hi there. Most of the time on diesel engines for Ford trucks, there could be an issue with the injection control pressure sensor (ICP). Check the ICP to see if it is functioning and has power to it. The ICP sensor is located on the passenger side valve cover toward the front of the cover. It is best to wait until vehicle is surging and then unplug the ICP sensor. This will set check engine light, but if vehicle smooths out then ICP sensor has failed. If you need further assistance troubleshooting your vehicle, then seek out a technician, such as one from Your Mechanic, that can assist you with the injection control pressure sensor diagnosis.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Engine idles rough sometimes and looses power.

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: Heater core or thermostat

If the engine temperature, as measured on the dash gauge, does not reaching the normal operating range within "roughly" 5 miles or so of driving, then a possibility is the cooling system thermostat is stuck open. Among other things, a...

Q: Loss of power

Hello. From my experience with this truck this is usually caused by a wiring issue on that side of the engine. If the ground loses connection then one side of the engine will begin to misfire and this will occur....

Q: What's is wrong?

This may be a result of a dirty or failing idle air control valve. The idle air control valve reads the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...