General Installation Questions
When do I need a Tachometer Signal Filter or H.E.I. Tachometer Signal Filter for my installation?
A Tachometer Signal Filter helps clean up poor, weak, or disordered pulse signals by removing unwanted interference from the signal, allowing the tachometer to provide a more accurate reading. A Tachometer Signal Filter may be needed for applications
My gauge has a white wire instead of a yellow wire. Can I use the white wire in its place?
Not necessarily. Some GlowShift gauges, including the MaxTow and Elite 10 Color Series, use different wire colors than other gauge series. For these gauges, the white wire is the switched 12V power source, while the red wire is the constant 12V power
How do I wire my gauges to the fuse box if my kit did not include an Expandable Circuit?
Expandable Circuits are an optional accessory and are not included with our gauges unless purchased separately. If you did not purchase one with your kit, you can purchase an Expandable Circuit separately through our website or find one at most local
Do I need to apply Teflon tape to the Fuel Pressure Sensor threads?
No. GlowShift Fuel Pressure Sensors come with thread sealant pre-applied to the threads, so additional sealant is not normally required during installation. If the original thread sealant has been worn off or removed, apply a fuel-rated thread sealan
How can I install an EGT probe after the turbocharger?
If you need to install your EGT probe post-turbo, GlowShift offers a downpipe mounting bracket designed to allow the probe to be installed directly onto the downpipe after the turbocharger. The bracket is available for purchase separately on our webs
Can I install a Boost Gauge without drilling and tapping the factory intake manifold?
Depending on the vehicle, you may be able to install a Boost Gauge without drilling and tapping the factory intake manifold. GlowShift offers a variety of vehicle-specific Boost Gauge Adapters designed for certain applications. If an adapter is not a
Do I need the Air Intake Heater Boost Plug Adapter to install a Boost Gauge?
No, the Air Intake Heater Boost Plug Adapter is not required for installation. However, it can make the installation much easier by providing a convenient location to connect your Boost Gauge without making permanent modifications to your vehicle. Th
Should I remove the intake manifold before drilling and tapping it?
Yes. GlowShift strongly recommends removing the intake manifold before drilling and tapping. Removing the manifold helps prevent metal shavings created during the drilling and tapping process from entering the engine, helping protect the engine from
Is a Honda Fuel Pressure Banjo Bolt Adapter required to install a Fuel Pressure Gauge?
No, the Honda Fuel Pressure Banjo Bolt Adapter is not required, but it is recommended because it makes installing a Fuel Pressure Gauge easier. The adapter replaces the factory banjo bolt on the fuel filter and allows you to connect the fuel pressure
Is a Chevy LS Engine Fuel Rail Adapter required to install a Fuel Pressure Gauge?
No, the Chevy LS Engine Fuel Rail Adapter is not required, but it is recommended because it makes installing a Fuel Pressure Gauge easier. The adapter is designed to connect directly to the factory fuel rail Schrader valve, providing a convenient loc
Do I need a Fuel Pressure Big Line Kit to install a Fuel Pressure Gauge?
Whether a Fuel Pressure Big Line Kit is required depends on your vehicle and whether you are using the factory or aftermarket fuel system. Big Line Kits are specifically required for 2007.5–2018 Dodge Ram 6.7L Cummins and 2011–2016 Ford 6.7L Power St
Is a Boost Bolt Thread Adapter required to install a Boost Gauge?
No, a Boost Bolt Thread Adapter is not required for Boost Gauge installation. However, it can make installation easier by providing a convenient connection point without the need to drill and tap the intake manifold. These adapters are designed for:.
My Boost Gauge came with a Boost Sensor instead of a Boost Hose and fittings. Is the installation the same?
If your Boost Gauge did not come with a Boost Hose or fittings but included a Boost Sensor, you have an electronic Boost Gauge. The installation is similar to a mechanical Boost Gauge, but instead of routing a Boost Hose into the cab, you will instal
What is the best way to install a Boost Gauge on my diesel truck?
GlowShift Boost Gauges can be installed on diesel trucks using several different methods. GlowShift offers a variety of vehicle-specific Boost Adapters for many light-duty diesel applications, providing an easier installation without drilling and tap
How should the ferrule fittings on the boost line be positioned and tightened?
Proper ferrule placement and tightening are important to ensure a secure, leak-free connection. Refer to the installation image for the correct ferrule fitting placement and orientation. Once the ferrule is positioned correctly, tighten the cap until
What is required to install a Universal Pillar Pod on my vehicle?
GlowShift Universal Pillar Pods are designed to fit virtually any vehicle. However, because they are not vehicle-specific, some applications may require modifications such as cutting, trimming, or molding to achieve the proper fit on your factory A-p
How difficult is it to install GlowShift Gauges and Gauge Pods?
The difficulty of installation can vary depending on the gauge, vehicle, and your level of automotive experience. Regardless of your experience level, GlowShift recommends having your gauges and/or gauge pods installed by a qualified professional to
What size drill bit and tap do I need to tap my manifold for a gauge sensor?
To tap your manifold for a GlowShift gauge sensor or fitting, you will need an R-size drill bit and a 1/8"-27 NPT tap. GlowShift offers a 1/8"-27 NPT Drill and Tap Kit that includes the correct R-size drill bit and 1/8"-27 NPT tap, making it easy to
What adapter do I need to install a Fuel Pressure Gauge on my Chevy Duramax?
To install a GlowShift Fuel Pressure Gauge on a Chevy Duramax, an aftermarket lift pump is required to obtain a fuel pressure reading. For 2000–2013 GM 6.6L Duramax applications, GlowShift offers the 6.6L Fuel Pressure Adapter (GS-FA_Duramax). This a
What adapters do I need to install a Fuel Pressure Gauge on my Ford Super Duty Power Stroke?
GlowShift offers several Fuel Pressure Adapters, T-Fitting Adapters, and Big Line Kits to make installing a Fuel Pressure Gauge on your Ford Super Duty Power Stroke easier. The adapter you need will depend on your vehicle’s year, engine, and fuel sys
What adapters do I need to install a Fuel Pressure Gauge on my Dodge Ram Cummins Diesel?
To properly install a GlowShift Fuel Pressure Gauge on a Dodge Ram Cummins Diesel, you will need a 1/8"-27 NPT Diesel Fuel Pressure Snubber Valve. The snubber valve helps protect the fuel pressure sensor from pressure spikes that can occur when the v
How can I avoid pinching or kinking the Boost Hose during installation?
When installing the Boost Hose, handle it carefully and route it loosely to the desired installation location. Once the hose is in position, gently tuck it away while avoiding sharp bends, tight turns, or areas where the hose could become pinched. Zi
What is the proper way to drill and tap a hole for a gauge fitting?
To properly tap a hole for a gauge fitting, first drill the hole to the correct size for the tap being used. Position the tap so it is perpendicular to the surface at a 90-degree angle to ensure the threads are cut evenly. Before tapping, apply an ap
What is the recommended installation location and procedure for my EGT Probe?
For the most accurate Exhaust Gas Temperature readings, GlowShift recommends installing the EGT Probe in the exhaust manifold where the exhaust from all cylinders combines, before the turbo. The probe can typically be installed within 6–8 inches of t
Where should I install my Fuel Pressure Sending Unit?
The proper installation location for your Fuel Pressure Sending Unit depends on your vehicle and fuel system. For diesel applications, the sending unit can typically be installed at the lift pump, injection pump, or fuel filter housing, depending on
Where is the best place to install my Transmission Temperature Sensor?
GlowShift Transmission Temperature Sensors can be installed in three locations, depending on your vehicle and the type of temperature reading you want. Transmission Test Port: Some transmissions have a test port that was originally designed for check
Do I have to use the fuse locations listed in the instructions, and are Expandable Circuits required?
No. Expandable Circuits are not required to install your GlowShift Gauges, and you are not limited to the fuse locations listed in the installation instructions. When using an Expandable Circuit, you can install it into any fuse location rated up to
Can I remove the GlowShift Heater Plug Adapter and reinstall the factory Intake Air Heater Plug?
Yes. The GlowShift Heater Plug Adapter can be easily removed once the Boost Hose or Boost Sensor has been disconnected from the adapter. After removing the adapter and any associated fittings, you can reinstall the factory Intake Air Heater Plug into
Will the sensor wires reach my mounting location, and can I extend them if needed?
Most GlowShift gauges include a 9-foot sensor harness, which is sufficient for most installations. If the harness does not reach your mounting location, you can purchase a pre-made extended harness from our Wiring Harnesses section or extend most tem
Where is the best place to connect the sensor ground wire?
The best place to connect the sensor ground wire is to a clean, bare-metal chassis ground or directly to the vehicle battery’s negative terminal. For the best connection, clean the grounding location with sandpaper or a scuff pad to remove paint, rus
Can I connect the gauge dimmer wire to my vehicle’s adjustable interior or dashboard lighting dimmer?
GlowShift gauges automatically dim when the orange wire from the gauge power harness receives a switched 12-volt power source. We do not recommend connecting this wire to an adjustable dimmer wheel or variable-voltage lighting circuit. Reducing the v
Do I need the HPOP Gauge Pigtail Harness to install an HPOP gauge on my 7.3L or 6.0L Ford Powerstroke?
No, the HPOP Gauge Pigtail Harness is not required to install an HPOP gauge on a 1999–2007 Ford Powerstroke. The pigtail harness provides a plug-and-play installation by eliminating the need to tap into the vehicle’s factory wiring harness. If you do