Has anyone seen this?
- Thread starter Trying my best
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MidnightBlade
Shiftin' Smooth
That'd be almost perfect with a push-button accompanting it, that way it doesn't come on while the engine is running 
TWeatherford
Full Access Member
I prefer my manual switch personally, but its an interesting modification. If I were to do something like that I'd use a real automotive switch that closes at 120 degrees or so, mounted in a coolant line to get an accurate reading of whether its warm. Whatever is added, it should not be possible for it to fail in the on position and turn the glowplugs on, or you've just created a worse problem than the one you fixed.
The past two days its been 100 degrees when I eave work, my truck sits all day in the sun on asphalt, and I still glow it or I'll have a 6-8 second crank before it starts. Of course, I don't think many people have glowplugs get stuck or fail that quick with a stock system anyway, if they use Beru plugs and antiseize.
The past two days its been 100 degrees when I eave work, my truck sits all day in the sun on asphalt, and I still glow it or I'll have a 6-8 second crank before it starts. Of course, I don't think many people have glowplugs get stuck or fail that quick with a stock system anyway, if they use Beru plugs and antiseize.
flareside_thun
Reviving The General Tao
Interesting idea.....he even looks like an OilBurner ha ha ha.
riotwarrior
Full Access Member
very interesting idea for sure, I think that using an electric fan controller/thermostat would be idea along with a manual override as well, JM2CW and now I'll be seeking out that exact setup!
icanfixall
Official GMM hand model
Why are we believeing this guy. Why does he "think" the glow plugs come on every time we start the engine. Once the coolant temp is at around 120 degrees the systems will not glow. Watch the dash lite... Does it come on for 8 to 10 seconds every time we restart the engine... Nope..... I would thank this guy if he actually did something for all of us... But I think hes out chasing his dog that trying to kill a bunny....
OLDBULL8
Good Morning Ya'll.
More like a TDS.
My dog would go absolutely crazy if he showed up at my door for a service call.
He didn't like to take his medicine.
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bghnkinf350
Registered User
Interesting idea, but agreed with the fact they do not seem to cycle each time you start the engine.
He scares me though! I kept waiting for him to flip out and try to kill something or someone!
Nice guy otherwise!
He scares me though! I kept waiting for him to flip out and try to kill something or someone!
Nice guy otherwise!
idi traveler
Full Access Member
Mine glow with every start.
smolkin
Stuck inside Mobile
Interesting...I do a lot of water heater work, I have a dozen or so thermostats on the truck right now. I've often wondered what else you might do with them...controlling an electric fan if I ever converted to that kind of setup maybe. So why is it some people's gps always glow and others don't? (mine don't glow at all atm heh but just trying to understand how the OEM controller works)
mabc926
Mojo
I thought Mel had a wiring diagram for the glow plugs, his looked pretty fool proof.
mabc926
Mojo
Found it.
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Diesel_brad
Dunce
My glow plugs cycle every time i start the engine. I can watch the amp meter dip while it is running
I agree with them cycling each time. Even on the newer trucks (My 6.0) will run the plugs each times it starts. If it is warm, maybe only for a second or 3..... but it does cycle them.
On the 6.0 as part of the "wait to start" sequence, it cycles the plugs, and also runs the coils in the injectors as part of a pre-heat cycle. It will cycle the coils also.... I could have just run through a full tank of fuel on the interstate, stop and fuel up, and on restart it will cycle the plugs and the injectors........
On the 6.0 as part of the "wait to start" sequence, it cycles the plugs, and also runs the coils in the injectors as part of a pre-heat cycle. It will cycle the coils also.... I could have just run through a full tank of fuel on the interstate, stop and fuel up, and on restart it will cycle the plugs and the injectors........
jim x 3
1988 F-350 DRW
Well, ICAN always seems to provide great info, but in this case he's not entirely correct. My '88 with the 7.3 system cycles with each KEY ON event. When the chambers are hot, it cycles very quickly, but it does cycle each time.
Rather than using a separate air-driven thermostat to defeat the GP cycle when hot, why not use the (already present) Engine Temperature Switch (that controls the FAST IDLE SOLENOID and the COLD TIMING ADVANCE) to power the GPC logic? This can be accomplished by wiring the switch output to the GPC terminal currently connected to the red wire. The switch then allows the GPC and GPs to be energized only when the coolant temp is below 122 degrees. CAVEAT: I have not tested this mod.
BTW, if you have a manual pushbutton, then Mel's circuit above will protect against overglowing and burning out the GPs. Highly advised.
Regards,
Rather than using a separate air-driven thermostat to defeat the GP cycle when hot, why not use the (already present) Engine Temperature Switch (that controls the FAST IDLE SOLENOID and the COLD TIMING ADVANCE) to power the GPC logic? This can be accomplished by wiring the switch output to the GPC terminal currently connected to the red wire. The switch then allows the GPC and GPs to be energized only when the coolant temp is below 122 degrees. CAVEAT: I have not tested this mod.
BTW, if you have a manual pushbutton, then Mel's circuit above will protect against overglowing and burning out the GPs. Highly advised.
Regards,
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