1971-1979 Dodge Colt Fuel Pump Cut-Off Switch: A Comprehensive Guide
Understanding the function and replacement of the fuel pump cut-off switch in your classic Dodge Colt.
- This switch is a critical safety upgrade for any 1971-1979 Colt converted to an electric fuel pump.
- Symptoms of failure include a no-start condition or sudden engine stalling.
- Standard Ignition is the available aftermarket brand, offering a reliable replacement part.
- Before replacing a fuel pump for a no-start issue, check if the cut-off switch has been tripped or has failed.
Is this a Factory Part on a 1971-1979 Dodge Colt?
For the 1971-1979 model years, many vehicles, including the Dodge Colt, may have originally been equipped with a mechanical fuel pump driven by the engine. In that original design, a separate cut-off switch was not necessary because if the engine stopped in a crash, the pump stopped with it. However, many of these classic cars have since been upgraded to more reliable electric fuel pumps. If your Colt has an electric fuel pump, a fuel pump cut-off switch is a non-negotiable safety feature. The available aftermarket part is a universal switch designed for this type of custom installation.
Symptoms of a Failing Fuel Pump Cut-Off Switch
A faulty fuel pump cut-off switch can mimic the symptoms of a bad fuel pump. The most common signs include the engine cranking but not starting, or the engine suddenly stalling while driving. A failing switch might trip for no reason, cutting power to the fuel pump intermittently. If your Colt suddenly dies and refuses to restart, or if it has a persistent no-start issue, this switch is a component worth investigating before you decide to replace the entire fuel pump.
Choosing the Right Aftermarket Part
For the 1971-1979 Dodge Colt, new original equipment (OEM) parts are no longer available. The primary aftermarket option is from Standard Ignition (Standard Motor Products). Standard is a well-established brand known for producing reliable replacement electrical components that meet or exceed original specifications. Given the age of the vehicle, a new aftermarket switch from a reputable brand like Standard Ignition is a more reliable choice than sourcing a used, unverified part from a salvage yard.
Aftermarket Cost for 1971-1979 Dodge Colt
| Part | Brand | Price Range |
|---|---|---|
| Fuel Pump Cut-Off Switch | Standard Ignition | $102.21 |
Frequently Asked Questions
Where is the fuel pump cut-off switch located on a Dodge Colt?
As this is often a universal part added with an electric fuel pump, there is no standard factory location. Common installation spots are in the trunk area, secured to the body, or inside the passenger cabin, often behind a kick panel or under the dash. The goal is to mount it to a solid part of the vehicle where it can properly detect an impact.
Can I reset a tripped fuel pump cut-off switch?
Yes. Most of these switches have a reset button on top. If the switch has been tripped by a hard bump or an accident, this button will often pop up. Before resetting it, you must inspect the vehicle for any fuel leaks. If there are no leaks, you can simply press the button back down until it clicks to restore power to the fuel pump.
Is a fuel pump cut-off switch the same as an inertia switch?
Yes, the terms are used interchangeably. Both refer to the same safety device that cuts power to the fuel pump upon sensing a sudden impact.
Are there any recalls for the fuel pump cut-off switch on a 1971-1979 Dodge Colt?
There are no specific recalls or technical service bulletins (TSBs) found from the National Highway Traffic Safety Administration (NHTSA) for a fuel pump cut-off switch on the 1971-1979 Dodge Colt. Any recalls for this vintage are rare and this part was often not a factory component.
Technical Specifications
Universal fit for vehicles with an electric fuel pump.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.