Q: dealer tells me that the ECM damaged the throttle body. For $1,100 they are replacing both. Does that make sense?

asked by on October 18, 2016

Car was throwing tps codes. Replaced tps but problem soon came back. Took car to dealership for diagnostics. They called to say the throttle body was bad. They replaced TB only to have same problem. They now claim the the ECM damaged the TB and also needs to be replaced. Final bill $1,100. This does not seem likely to me. Need another opinion.

My car has 133000 miles.
My car has an automatic transmission.

Hi there. From the description you have provided, the ECM (electronic control module) may have been the problem from the start. When the TPS (throttle position sensor) codes were stored in the computer. This would of been the time to perform the necessary circuit tests. It can occur, where one component takes out another. I won’t say this is the case for your vehicle but, it is possible. There are tests to confirm the ECM has failed. I recommend having your vehicle’s check engine light on be diagnosed and repaired by a certified technician from YourMechanic, as well as provide a second opinion.

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

How do I release the shoulder belt for the second row center seating position?
The second row center seat’s shoulder belt should stay connected at all times unless you need to fold the seat down or accommodate cargo. Of course, when those situations arise, you will need to know how to release it. Here’s...
Car overheating and not starting
It is possible that your head gasket may be leaking. When this happens, the pressure in the cylinders of your engine leaks into the cooling system, and causing it to overheat. Another symptom of a bad head gasket can be...
Battery light is on and car has no power steering
If the Battery Light is illuminated and the battery passes a load test, then you most likely have a faulty alternator; a charging system test would need to be performed to verify this. On the 2001 540i, the power steering...
What is causing this stalling problem - 1987 Chevrolet Nova
This is a problem that in most modern cars is now solved with an idle air control module which regulates how the fuel and air is mixed at idle or when coming down to an idle from higher RPM's. In...
Is CBS useful on slippery roads, gravel etc
Hello, thank you for writing in. CBS is also known as combined braking system, or linked braking system. What it does is link up front and back brakes on motor cycles and scooters to reduce lock up of having to...
We're is the oil sener
If you are referring to the oil pressure sensor, that sensor is screwed into the engine block. On a transverse mounted engine, the sensor is visible as you look from the front of the engine compartment. If you are referring...
Daughter just had a new battery in her 2005 Ford Focus. She finally got the car alarm to stop. The car wil not start. She is still
If the theft light is still on in the dash when the key is turned to on then the problem may be the theft module got cleared when battery was put in and the module will need reprogrammed to recognize...
I have to code for engine light on, will need a quote
Hello, thank you for writing in. The vehicle is telling you the transmission shift solenoid is malfunctioning. This may be due, and is most often due, to a bad transmission shift solenoid. The wiring to the solenoid and the TCM...
So I found out mt husband used castrol high mileage 5-w30 oil on my gmc terrain sle 2013 and im panicking. Is that oil okay?
The high mileage oil brand, and the specific viscosity rating (5W-30), that your husband bought for you is perfectly acceptable and you needn't worry at all. High mileage oil simply claims to have "extra" engine oil seal conditioners and perhaps...

Related articles

The Best Used Cars to Buy If You Love Road Trips
If If you love to travel, comfort is very important in a vehicle. You want a nice, quiet ride, comfortable seating, and enough room. We have evaluated several used vehicles, and narrowed our favorite road trip vehicles down to the...
The Best Used Cars to Buy If You’re a Plumber
Plumbers Plumbers need to carry around all manner of tools and supplies. If you’re plumbing a large building, or even a decent sized home, you’re going to need a vehicle that has quite a bit of cargo capacity. A car...
How to Adjust a Throttle Valve Cable
The throttle valve cable controls the line pressure, downshifting, and the shifting feel in the transmission. It can be adjusted to your preference.