[Qya1991]

I have a 1999 international school bus with the 7.3 in it. I was just wondering where to purchase them here in montana and what brand of glow plugs I should get. Any input would be appreciated thanks.

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[greenskeeper79]

[ame]https://www.amazon.com/Motorcraft-ZD11-Glow-Plug/dp/B000C5C524[/ame]

 

[Qya1991]

Thanks for the link. Another question is how do I know when I need to add coolant additive to the coolant?

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[RT]

There are test strips to check, but if you don't know the history of your coolant, it would be best to flush and start over with new coolant. I would suggest Fleetcharge which is precharged with SCA.


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[Qya1991]

Okay thanks for the info. Where can I purchase it at?

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[north2000]

glow plus

hello,
Stock Navistar or Ford for the 7.3
my 1991 E350 on stock glow plugs 1,385,765. km
my 2000 F250 876,785. km as stock glow plugs however I take them out every 60,000km and wire brush them and re-install them, plus added a momentary switch between trigger on glow plug relay. big red button on dash must be held down when cycling glow plugs to start. why air charge temp sensor does not always work properly on my truck, so switch prevents glow plugs possibly charging while driving down the hi-way. If they cycle while driving it can prematurely kill those glow plugs life.
The air charge temp sensor is easy to find and replace, it's the connector for that sensor which is rather stupidly expensive at 126.23 for a plug the size of my thumb nail, hence a 12.67 momentary switch was cheaper