Glow plug relay
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Tuned
Joined: Jul 2004
Posts: 371
Likes: 16
From: Upstate SC
Glow plug relay
I removed my intake air heater years ago, and noticed I have that relay just sitting there. Would it be feasible to split the glow plug circuit up on 2 relays, depending on how long the intake air heater circuit stays on? It would theoretically cut the amperage load in half on the solenoids.
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
It's feasible, but you would have to cut the output lead on the glow plug relay in half to make it happen. One lead goes left, one goes right. What I did on my truck was used the intake heater relay itself as a dedicated glow plug relay when my GPR bit the dust a long time ago. The intake heater relay is physically larger than the glow plug relay and is more than able to handle the load. My GPR hit the dumpster 15 years ago and I'm still using the intake heater relay as a GPR to this day.
Butt-Head
Joined: Apr 2004
Posts: 9,448
Likes: 2,934
From: Reed Point, MT
I removed my intake air heater years ago, and noticed I have that relay just sitting there. Would it be feasible to split the glow plug circuit up on 2 relays, depending on how long the intake air heater circuit stays on? It would theoretically cut the amperage load in half on the solenoids.
I had a friend do just that years ago.
One word of caution - these electronics are not what they were back then. My personal advice would be to use the glow plug control circuit (ground from the PCM) to activate a standard "Bosch" relay which would then close the ground circuit to the glow plug and intake heater relay instead of using the output from the PCM to have to run double the load on two relays.
OR use the glow plug relay output (big lug with brown/yellow wires) to power the control side of the intake heater relay and simply tape off the PCM-controlled ground side onto the harness and run a constant ground.
Hope this makes sense.
Tuned
Joined: Aug 2018
Posts: 367
Likes: 38
I upgraded to the following. Seems like an easier solution. It will fit in the OEM location in the same upright position. No wiring mods needed.
WESTERN SNOW PLOW RELAY 56131K-2
THIS WESTERN SNOWPLOW MOTOR RELAY IS A GREAT REPLACEMENT FOR YOUR OEM GLOW PLUG RELAY THAT COMMONLY FAILS, AND ITS RATING IS EVEN BETTER THAN THE STANCOR RELAY. PLUS, ITS HALF THE COST OF THE STANCOR RELAY.
VOLTAGE: 12V
CONTINUOUS AMPS: 150A
SURGE AMPS: 800A
CONDITION: NEW
MOUNTING: FLAT 180 (F180)
DUTY CYCLE: CONTINUOUS 100%
CASE MATERIAL: PLASTIC
NUMBER OF TERMINALS: 4
WESTERN SNOW PLOW RELAY 56131K-2
THIS WESTERN SNOWPLOW MOTOR RELAY IS A GREAT REPLACEMENT FOR YOUR OEM GLOW PLUG RELAY THAT COMMONLY FAILS, AND ITS RATING IS EVEN BETTER THAN THE STANCOR RELAY. PLUS, ITS HALF THE COST OF THE STANCOR RELAY.
VOLTAGE: 12V
CONTINUOUS AMPS: 150A
SURGE AMPS: 800A
CONDITION: NEW
MOUNTING: FLAT 180 (F180)
DUTY CYCLE: CONTINUOUS 100%
CASE MATERIAL: PLASTIC
NUMBER OF TERMINALS: 4
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