Fuel Pressure Light

[Rick B]

Has anyone tried a light for fuel pressure instead of an actual gauge? I know everyone likes to watch gauges but it sounds like when pressure drops to a preset number and a light comes on, it would do the trick. It would also save many dollars. Any thoughts from anyone?

 

[Bob4x4]

It has been done and fits right in with the keep it simple plan. An oil pressure switch will do the job just fine.



Bob

 

[Joe G.]

You can get pressure alarm switches at a marine store. I use them to turn on a red light if oil or fuel pressure is low.

 

[cyborg]

Red LED, eye level on the pillar gauges.

 

[Cummins Thunder]

Any place on-line to get the switches?



I think I will install buzzer as well as a light on the pillar.

 

[CJ Lagos]

I have the BD low fuel pressure light kit($50), it works great. You just screw it in place of the factory shrader. I mounted the LED next to my EGT guage.

 

[Matt400]

I have the BD low fuel pressure light kit.

What pressure will it light the led at?

 

[wlowe]

I have the Dakota Digital Fuel guage which flashes when the pressure drops too low or climbs too high. I have the low side set for 8 psi and the high side set for 30 psi(pusher pump runs about 23 psi). The flashing catches my attention very quickly.

 

[CJ Lagos]

The BD light is cool, the switch they use grounds the circuit @ 5psi or less.

 

[nickleinonen]

What pressure will it light the led at?

the bd one is 5lbs, but if it is an actual HOBBS brand switch, most of them are adjustable [pull the rubber cap off the end and use allen key to fine tune switch]

 

[TJSHOTROD]

I had the light and it sucks because you do not know if it is working. I thought I was going fine till I added the big fuel lines and noticed the wire had to the switch was broken and not sending any signal. I installed mine gauge and sure enough low fuel pressure. Just do it right and get a gauge.



T. J.

 

[Joe G.]

If you rig the light right it will be on when you start until pressure is up. I have pressure sensors on both engine oil pressure and fuel pressure. When both are up to 10 PSI after starting the light turns out. I also have a fuel pressure gauge. The alarm light it to alert me to check my gauges. I'm going to rig a sensor on my coolant temp and EGT. All of these will light the same alarm light.

 

[Matt400]

I'm going to rig a sensor on my coolant temp and EGT. All of these will light the same alarm light.

Thats a good idea, one light to get your attention to the gauges.