Q: How long can it take an ECU computer to go bad?

asked by on February 08, 2017

I purchased a car from a used car dealership and after a month and a half the car became inoperable with oil leaks, needed 6 new spark plugs, six new engine coils and a brand new ECU computer. Is there anyway that this could have been all caused in a month and a half?

My car has 110000 miles.
My car has an automatic transmission.

Hello, and thank you for writing in. The vehicle likely did not suddenly develop all of these problems. Oil leaks in particular happen due to excessive engine wear. The spark plugs and their coils tend to be regular maintenance with the age and mileage of the vehicle. The engine control unit is a component that can last the lifetime of the vehicle, or develop issues after 100,000 miles. What causes them to fail is a bigger question. It typically comes from bad manufacturing, or some kind of electrical work done to the engine. With the issues you have been having, make sure that your cooling system is working correctly and has clean coolant. For more help with a general tune up or inspection of the vehicle, contact our service department to schedule an appointment.

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

What others are asking

Engine fail after harmonizer replacement

Hi there: In regards to the drive belt and tensione replacement causing internal engine damage; that's not probable. In most cases, the replacement of the harmonic balancer is due to misalignment of the component or damage to the housing that...

My 99 ford Taurus won't engage when put in drive or revers, neutral works fine and it starts and everything. Whats wrong??

Hi There, You are correct in that a this may be caused by a clogged transmission filter. This may also be caused by a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears....

Hi I have hummer h2 06 there is sign come on screen low oil pressure I changed sensor also changed fuil pump Engine runs smooth ha

Oil pressure can be tested and verified against factory specifications using an external pressure gauge, connected to a threaded access port on the engine block. If pressure measures normal, and the engine otherwise functions normally (adequate and even cylinder compression,...

2001 Ford Taurus automatic transmission wont change into 2nd

The function of transmission fluid is to not only lubricate the internal moving parts and get the car moving, but to keep the transmission in it's proper temperature range. Constant driving with a low fluid level will cause the transmission...

How would i know that i need to replace the vanos?

The VANOS is a variable camshaft timing system that uses engine oil pressure to change the camshaft position. The VANOS solenoid is an electrically operated valve that diverts oil pressure to the correct devices under certain conditions. Usually the first...

My car lost power with the engine revving. Then the wheels locked down and died and won't start back up

Hi there. It sounds like you may have experienced an internal failure of the transmission, rear differential, or the brake system. Check for marks on the pavement for the tires and determine if it was all four or only two...

Car is starving for fuel sometimes but not always

Hi. The first question to ask is if the Check Engine Light is on. If so, what are the stored problem codes? These would be helpful for diagnostic purposes. Check your fuel pressure (while running and under load if possible)....

At what mileage should I get my timing chain replaced?

Your Lexus IS250 uses a timing chain rather than a timing belt. Fortunately, the timing chain does not require regular maintenance like the belts typically do. Just be sure to perform regular services on your car such as oil changes,...

While driving the car seems to want to sway left and right more than usual.

Hi there. From the description you have provided, there are several possibilities for your vehicle's poor handling. The fact you have had your vehicle's front end checked, tie-rod ends replaced, and the alignment performed all leads me to believe that...

Related articles

How to Clean Oxidized Headlights
Since vehicle manufacturers made the widespread switch in the 1980s from easily broken glass headlights to ones made of polycarbonate...
All About Aftermarket Parts
Have Have you ever wondered why a part varies in price from the dealership to the parts store on the street corner? Have you ever wished you could find less expensive parts to keep your vehicle maintenance costs down? Have...
How Your ECU Uses Sensor Data
Today’s Today’s modern vehicles are made up of anywhere from one to seven computers that assist with the car’s day to day functions. An engine control unit (ECU), is a computer that similar to that of a laptop or smartphone...