Q: When I turn off my car the check engine light comes on, ABS, and Brake light on, but when the car on they go away

There are numerous Technical Service Bulletins (TSB #PIT-4730A, #TB-080849017B, #4011, #07224) that address this issue and probably a few that you haven’t seen yet. These issues have multiple causes, from defective wiring, shorted fuse panels and in some cases defective...

I found the transmission has a recall to reprogram the control module to fix drive complaints. The recall RC-R01-15 covers reprogramming the modules that control the transmission and engine. The recall does not state your exact problem and only states...

While having a broken A/C is a big inconvenience, having your Pontiac overheat is a much bigger concern that we will need to addressed first. When your Grand Am overheats, the temperature rise inside causes damage to the engine and...

Hello. If the spark plug and the coil have been replaced, then a compression test (https://www.yourmechanic.com/article/how-to-do-a-compression-test-by-robert-tomashek) needs to be done. It is common for the valve seat to fail and cause this. When it fails, it causes low compression which...

Hi there, thank you for asking about your 2003 Mercedes-Benz S55 AMG. This is usually caused by a failing throttle body. The throttle motor or sensor fails and will cause this to occur. If the motor cannot move the throttle...

Hello, thank you for writing in. The VSA warning light relates to the vehicle stability control system. It functions with the ABS system to keep the vehicle on the road in difficult driving conditions. There are multiple sensors and systems...

It appears that your vehicle uses two separate sensors. One would be for the temperature gauge on the dash, while the other one is used for the signal to the control module. The sensor for the control module should be...

Hi - the diagnostic trouble codes you mention are: 33- Manifold Absolute Pressure circuit/sensor malfunction: wiring open circuit/shorted circuit to positive, hose blocked/leaking, MAP sensor, 34- manifold Absolute Pressure circuit/sensor malfunction: wiring shorted to ground, 42- ignition control module circuit...

Check the engine for a misfire. Check the spark plugs and see if they are working and if there is park to the spark plugs. If the spark plugs are clean and there is spark to the spark plugs, then...