Skip the auto shop - Our mechanics make house calls

Q: Engine control modules replaced on a newer car

asked by on

I've recently bought this pre-owned car, which is a 2014 model. Despite being a newer car, it has developed some serious engine problems. One day, I was driving a relatively long distance of about 50 miles. It started having troubles so I took it to the dealership. They had the powertrain control module and the engine control unit replaced. I'm very concerned about the vehicle as it is fairly new and both engine modules have been replaced already. I guess I need your advice. Should I keep the car or sell it? What kind of problems can I expect in the future if I keep the car?

A: Hi there. These modules are common failures...

Hi there. These modules are common failures on the Jaguar XF. I am sure that this does not make you feel any better about it, but from my experience, once the modules are replaced you usually do not have any further issues, assuming that new factory modules were used. Many times these modules fail due to voltage issues in the electrical system, so it is important to always make sure that the battery and alternator are good and that all do the ground connections are clean and tight. Your car should be fine for now, but if it begins to have drivability issues, you may want to start looking to sell the car.

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!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: So my bfs tranny busted , what would i have to do to fix it up ? We have another transmission at home

Replacing a transmission should not be done by a novice person and only be done with complete instructions and proper tools. I would recommend having a mechanic like one from YourMechanic come and direct you in person or replace the...

Q: P0755 & P0700 error codes

The problem with buying used tires and not having them balanced is the potential problems they can cause. Most transmissions - or more specifically, the Powertrain Control Module (PCM) which controls the transmission and drive line - contain incredibly...

Q: Screeching chirp noise engine - 1991 GMC K2500

Hey there. The A/C pulley bearing may be binding causing the chirping. Try spraying each belt one at a time with some water in a spray bottle. The noise will change or go away when the belt that is chirping...

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...
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...
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.