Q: Is spending $6000 for repairs too much on a 2006 Navigator

The automatic transmission in most vehicles are designed to shift the gears for us rather than use a manual transmission and a clutch with a stick shift to change gears. If you have driven a manual transmission before then you...

The problem you are experiencing may be the vacuum modulator leaking in the transmission. The vacuum leak will cause the engine to idle high and the transmission will not shift correctly. The vehicle should be tested for any problems with...

Hi and thanks for contacting YourMechanic. This issue is not the MAP sensor (https://www.yourmechanic.com/services/manifold-absolute-pressure-sensor-map-sensor-replacement), but rather the mass air flow (MAF) sensor (https://www.yourmechanic.com/services/mass-airflow-sensor-replacement). This sensor is usually missed unless the computer sees it malfunctioning. Most of the time the MAF...

The throttle position sensor on this diesel is the APPS mounted on fuel pedal.

Hi there - the lack of heater function could have 5 causes: the engine is not getting up to correct temperature (center of the gauge) due to a malfunctioning thermostat (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-thermostat), the heater control valve (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-heater-control-valve) is not letting hot...

Hi There, It sounds like you may have a faulty MAP sensor as your vehicle seems to respond adversely to varying loads being placed on the motor which is what the MAP sensor is designed to do. The Manifold Absolute...

Hello, thank you for writing in. The warning lights and loss of power that you are having are typically triggered by a major malfunction. The braking and unresponsive throttle are both safety features to keep the vehicle from putting you...

Normally, the indicator (or pointer) on the engine temperature gauge should be in the "center", or lower. If your cooling gauge has numbers, the acceptable operating range is 195 to 215 degrees. Above or below that range, in normal engine...

Hi Rebecca. Thanks for reaching out to us tonight. When a vehicle stalls and loses electrical power like you've described, it can be very tricky to diagnose, since there are so many possible sources. In many cases, this can be...