Glow Plug question

[International-Harvester91]

Hey guys iv tried searching on this issue and i can not find anything so maybe you can help me. I just replaced the glowplugs in my 7.3 IDI ( did not use autolite's, i used wellmans) because the truck was hard to start if it was not plugged in, well needless to say the new plugs did not make a difference. My wait to start light will stay on for about 4 seconds on a cold start and it was about 45 or 50 degrees today then it will click fairly loud over and over again, louder than it has done before i had this problem i think. What should i do next? Glow plug controller? relay? Any help will be greatly appreciated

[stroker/stonemaison]

I would definetly check the relay and go from there

[MrJohnWayne]

you should be able to have the glow plug controller tested. from what I remember they are not cheap to replace.

[ktfjammer]

Originally Posted by International-Harvester91

Hey guys iv tried searching on this issue and i can not find anything so maybe you can help me. I just replaced the glowplugs in my 7.3 IDI ( did not use autolite's, i used wellmans) because the truck was hard to start if it was not plugged in, well needless to say the new plugs did not make a difference. My wait to start light will stay on for about 4 seconds on a cold start and it was about 45 or 50 degrees today then it will click fairly loud over and over again, louder than it has done before i had this problem i think. What should i do next? Glow plug controller? relay? Any help will be greatly appreciated

You have a 91 7.3L? When was the last time you change your glow plug relay? I had the same issue. I change the relay and my truck starts in 15 degree weather, something it never did. I would change the glow plug relay since it is fairly cheap to replace. Give us an update on what happens

[alshayne]

i had the same problem and someone on hear referred me to a stancor heavyduty 200 amp relay from gopherelectronics.com part no. 586-902
the price was $73.25 shipped to my door. it its considerably larger than stock but mounts fine in the stock location. My truck now cranks in the cold with no problem, you can tell a BIG difference with the HD relay.

[FordGuy100]

Or you could just wire your glow plugs up on a toggle switch and basically bypass all of the stock glow plug wiring/mechanics, that in time, fails. Thats what I did, threw my glow plugs on a momentary on toggle switch, and it works good. Just something to think about.

[TommyBoy#1]

Originally Posted by FordGuy100

Or you could just wire your glow plugs up on a toggle switch and basically bypass all of the stock glow plug wiring/mechanics, that in time, fails. Thats what I did, threw my glow plugs on a momentary on toggle switch, and it works good. Just something to think about.

lol thats what we did to my boss's old pos he'll forget to turn it off and burns up the ****ers in no time

[FordGuy100]

Originally Posted by TommyBoy#1

lol thats what we did to my boss's old pos he'll forget to turn it off and burns up the ****ers in no time

Hence the "momentary on" part of mine . When I let go it goes into the off position. Plus I put it way down on the dash so its kinda a pain to bend over to push it so I know exactly when I'm holding that momentary on toggle switch

[jeff.walford]

how did you wire that switch in? my idi wont start for anything in the mornings even at 60 degree days.........