Skip the auto shop - Our mechanics make house calls

Q: Car won't start every time oil needs changing

asked by on

I have some engine problems with my car. It gets sluggish, stutters and jumps every time the oil needs to be changed according to the computer. Now, when this has happened, I cannot start the car at all. It happened before and the car ran roughly, but when I changed the oil, it ran smoothly without any issues. Is this normal? Is there any underlying issue with the car that is causing this?

A: This sounds to me like a possible computer ...

This sounds to me like a possible computer issue. I have never heard of an engine that runs rough just because it needs the oil changed. This could possibly be a driver inside the powertrain control module that is malfunctioning and this malfunction could be triggered by the "Change Oil Soon Warning". I would recommend having your vehicle inspected by a qualified mechanic to test the powertrain control module for proper function. If the powertrain control module has a malfunction, it is likely that many other electrical malfunctions could soon follow. With this in consideration, it would be best to replace the ECM sooner rather than later. If you want to have this verified, a technician from YourMechanic can come to your home or office to inspect your car's starting issue and determine what repairs are necessary.

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: Load on truck's engine causes loud knocking noise

Hello. It sounds like there may be a problem with the piston or the valves in cylinder 5. Loose rod bearings to the piston can cause a knocking noise and/or a misfire condition. A worn out piston can also cause...

Q: Torque converter goes in/out of lock up at cruising speed

Thanks for writing in about your 1999 Chevrolet Suburban. There are DTCs (diagnostic trouble codes) that will indicate faults with TCC solenoid and brake pedal switch circuits. A scan tool can be used to observe brake pedal switch position while...

Q: What causes an integrated supply module to burn out?

Congratulations - you have gotten 190K out of your module! This module is mounted under the passenger side cabin filter in the engine compartment - a very hot place to exist. The most common failure source on these modules is...

Related articles

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...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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...