Q: Lose of power when running, and the tac stopped working.

asked by on

I was driving when tac gauges stopped working, and there was a loss of power. Truck stopped running

Hello. The vehicle likely stalled due to a lack of gas, or a poor air fuel mixture. This is what caused the drop in RPMs and for the tachometer gauge to drop. The first thing to do is turn the vehicle to the "On" position. Listen for the faint "whirling" of the fuel pump priming. If you do not hear anything, there is a chance the fuel pump has failed and will need to be replaced. With the age of the vehicle, if the pump has never been replaced, it wouldn’t be uncommon for it to fail. Another way to test the fuel system is to hook up an inline gauge and test the fuel pressure after the filter. A clogged fuel filter can also cause these similar symptoms, but they tend to not be so sudden.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Lose of power when running, and the tac stopped working.

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

Get a quote

What others are asking

Q: Car goes forward when put in reverse backup lights do not come on

Hi there. The most common cause of this type of problem is a transmission sensor, or linkage malfunction or a pressure imbalance in the transmission. With these issues, the car is unsafe to drive until this is resolved. You should...

Q: Can't get a full tank of gas without pump stopping

The fuel tank venting system is plugged or blocked in some way. There is a two-way valve and a canister close valve that can cause the fuel tank to not get vented during fill up. Have these inspected and checked...

Q: Wrench light came on truck has no power and the rpms constantly get higher if put in park

Hi there: The wrench light is service light indicator that alerts the driver that maintenance or service is due for a component. Most of the time, scan that Auto Zone will complete uses a basic scan tool, which does not...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...