Q: Thermostat leak

Hey there, thanks for writing in about your 2007 Mercedes Benz E550. This is a common issue on many Mercedes models. Sometimes simply shutting the car off and removing the key and waiting for 20-30 seconds before re-starting eliminates the problem. Alternatively,...

Hello and thank you for contacting YourMechanic. What happened is that the power cables that are directly from the battery went to ground causing a mass surge through the vehicle's fuse box. This causes the engine's computer to think that...

Hello. Thank you for writing in. Due to the p0405 code (https://www.yourmechanic.com/article/p0405-obd-ii-trouble-code-exhaust-gas-recirculation-sensor-circuit-a-low-by-jay-safford), you will want to start by replacing the sensor. This is typically easier and cheaper than replacing the EGR unit all together. If the light continues to illuminate,...

Hello - there are several possibilities here for this "no-start" problem (https://www.yourmechanic.com/article/how-to-troubleshoot-a-car-that-is-hard-to-start-by-jessica-howe), but they will have different symptoms. If you are getting no spark at the plugs, that could indicate a failed or incorrectly-installed crankshaft position sensor. If you get...

Check the ignition timing on the distributor and see if the timing is off. If the timing is good, then the accelerator pump in the carburetor or the fuel injectors are not working properly (if your vehicle has TBI injection)....

Hello - most often, wiring damage is caused by shorts caused when wiring insulation is damaged and cut or worn away. The big charging cable from the alternator to the battery (or the starter cable) has a huge capacity for...

Hi there. In order to answer your question, we need to know what year, make and model of vehicle you have along with any symptoms you are experiencing.

Hello, thank you for writing in. There are several reasons why the vehicle may be stalling. You should ALWAYS start by having the vehicle scanned for codes when there is an issue, regardless of a warning light being illuminated. When...

The crack in the intake hose should be repaired. Based on EPA data, you should be getting around 21 MPG city and 31 MPG highway driving. Overall, you should get around 25 MPG. If your results are at least 10%...