Q: cannot start by key

Hello. This is a difficult problem to fix. The most likely cause of your problem is either a short to ground or broken wire in the wire harness, which is positioned behind the dashboard. It often requires replacing the entire...

There are many different reasons for the Transmission Service Light to come on for your 2004 Jaguar Vanden Plas. The most common would be low fluid level (https://www.yourmechanic.com/services/transmission-fluid-service) or a fluid service interval (https://www.yourmechanic.com/article/how-long-does-transmission-fluid-last) that has been exceeded. If you...

I do not recommend driving the vehicle until the car is diagnosed as to why the lights came on. The issue may constitute your vehicle to be unsafe to drive and should only be driven only to get to a...

Hello. It sounds like you may have several different problems with this vehicle. The starting issue sounds like you may have a failure in the fuse box (https://www.yourmechanic.com/services/fuse-replacement) or in the starter relay (https://www.yourmechanic.com/services/starter-relay-replacement), most of the time though it...

The lines to the firewall could be hot and yet the heater control valve (https://www.yourmechanic.com/services/heater-control-valve-replacement) is not admitting the heated coolant to the heater core in the dash. So, you want to inspect that valve and make sure it is...

Hello. There is no fuel line kill switch for your particular vehicle. There is a fuel pump fuse which can act as a fuel line kill switch. It is located in the rear compartment fuse box. The rear compartment fuse...

Check over the vehicle for all safety items on the chassis and cabin compartment. Make sure that the vehicle is safe to drive in any condition. I recommend that if you have to replace any suspension or steering components or...

Hi Braxdon. Thanks for contacting us today. Of the error codes you've listed, the one that might be the root source of your problems is the P2138 OBD-II Trouble Code. The P2138 trouble code (https://www.yourmechanic.com/article/p2138-obd-ii-trouble-code-throttle-pedal-position-sensor-switch-d-e-voltage-correlation-by-andrew-quinn) indicates that the Engine Control...

Check your lug nuts first! It may not be the problem, but it's a good first step. Usually, a shake like the one you describe is a tire balance issue. But if it came on suddenly as you say, it...