smoke
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Cross-Country
Joined: Dec 2022
Posts: 90
Likes: 11
smoke
Hi guys have a 97 f250 7.3 diesel smokes when i start it up if i plug the block heater in for awhile it wont smoke at startup. i just put new glow plugs in not too long ago all the plugs new ohmed out at 1.0 to 1.2 ohms did i just get bad plugs or what you alls thought tia
Tuned
Joined: Jan 2020
Posts: 338
Likes: 112
From: Southern California
I had same at start up until I test light the GPR and saw that I was not getting power with key on. I could lay the screwdriver across the terminals and it would work and hear a click. Internals were shot. Replaced with white Rogers and not had an issue since. You can YouTube this test light procedure.
Lead Driver
Joined: Apr 2016
Posts: 7,172
Likes: 1,332
From: Bahstun
If you measured 1 ohm on the big posts, you have a few open and a parrelll circut like this should be about .125 ohms which is hard to read unless you have a really good meter.
unplug the four connectors at the valve covers
measure each outer pin to Ground AKA Block
All GP should be about 1 ohm each.
corrosion happens after many years
Take off the double lugs on GPR off and wire brush them and put back on but be carefull as the GPR other lug is hot at all times.
I have seen them corrode a lot of times and only one bank energizes.
unplug the four connectors at the valve covers
measure each outer pin to Ground AKA Block
All GP should be about 1 ohm each.
corrosion happens after many years
Take off the double lugs on GPR off and wire brush them and put back on but be carefull as the GPR other lug is hot at all times.
I have seen them corrode a lot of times and only one bank energizes.
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i ain't rite
Joined: Mar 2005
Posts: 65,429
Likes: 5,509
From: Marlboro Mental Hospital.
what brand glow plugs were put in, and where did you get them? all glow plugs are not created equal, and a lot of sellers, especially on ebay sell counterfeit plugs.
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Hotshot
Joined: Dec 2012
Posts: 11,266
Likes: 1,649
From: Las Cruces New Mexico
I read your title and right away reminded me of this sketch from Family Guy
As Tom posted there's a lot of knock offs in eBay they look legit but are fake Chinese garbage. Best place to buy genuine FoMoCo parts is from Riffraff Diesel, Diesel O Rings or a dealer but the dealer likes to rape you in the price department if you don't have a commercial account with them.
As Tom posted there's a lot of knock offs in eBay they look legit but are fake Chinese garbage. Best place to buy genuine FoMoCo parts is from Riffraff Diesel, Diesel O Rings or a dealer but the dealer likes to rape you in the price department if you don't have a commercial account with them.
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