7.3 IDI fuel filter
Freshman User
Joined: Apr 2013
Posts: 42
Likes: 0
Well- I went back to the truck and first thing I did was try to it to start - without doing anything.... only to find out that now the ignition/starter relay wasn't working.
Bypassed it to try a couple of time - and found fuel is definitely getting past the filter. Also, now, I have lots of white smoke (which wasn't there before)
So while sitting doing nothing for early 48hrs -the relay went and now I'm getting white smoke -- still won't actually fire.
trying to get a new relay in to keep seeing if any answers become obvious -- but that's not working great as it stand.
this really just gets more bizarre as thing change for no quantifiable reason
Bypassed it to try a couple of time - and found fuel is definitely getting past the filter. Also, now, I have lots of white smoke (which wasn't there before)
So while sitting doing nothing for early 48hrs -the relay went and now I'm getting white smoke -- still won't actually fire.
trying to get a new relay in to keep seeing if any answers become obvious -- but that's not working great as it stand.
this really just gets more bizarre as thing change for no quantifiable reason
i ain't rite
Joined: Mar 2005
Posts: 65,511
Likes: 5,567
From: Marlboro Mental Hospital.
to test resistance of glow plugs you need to disconnect them and test from tip of plug to ground.
but even that is not fool proof. i have seen plugs resistance test good but not light up when power is applied.
when you go key on, do you get power to the glow plug tips?
but even that is not fool proof. i have seen plugs resistance test good but not light up when power is applied.
when you go key on, do you get power to the glow plug tips?
Freshman User
Joined: Apr 2013
Posts: 42
Likes: 0
changed relay put in new plugs - hard first start then fine. later I started her up a bit of hesitation but started -drove 5 min / stop for 2. strats fine - did that again - fine.
Sits in drive way two days - starts hard but goes then NEW SYMPTOM - 4-5 times over a 45min drive at eighty, the speed stays same but rpm jumps from steady 1.5 to 2 --without speed change or noticeable tranny/gear issue.
Then after an hour drive total, parked for 25 min (hot day in sun) and same as before ---won't turn over as though not getting gas. (don't know a bout smoke color I'm not there wife is reporting) Fuel filter light was on - she drained some of the filter , light went out but still won't turn over.
Making no sence. Okay - then not. Change fuel filter- okay then not. Change glow plugs = okay then not. It just doesn't add up or make any sense ... may just have to throw hands in air and bring it to someone...can't afford to be off the road like this (or risk getting stuck far away again) any longer
Sits in drive way two days - starts hard but goes then NEW SYMPTOM - 4-5 times over a 45min drive at eighty, the speed stays same but rpm jumps from steady 1.5 to 2 --without speed change or noticeable tranny/gear issue.
Then after an hour drive total, parked for 25 min (hot day in sun) and same as before ---won't turn over as though not getting gas. (don't know a bout smoke color I'm not there wife is reporting) Fuel filter light was on - she drained some of the filter , light went out but still won't turn over.
Making no sence. Okay - then not. Change fuel filter- okay then not. Change glow plugs = okay then not. It just doesn't add up or make any sense ... may just have to throw hands in air and bring it to someone...can't afford to be off the road like this (or risk getting stuck far away again) any longer
Junior User
Joined: Jan 2014
Posts: 73
Likes: 0
From: norway
changed relay put in new plugs - hard first start then fine. later I started her up a bit of hesitation but started -drove 5 min / stop for 2. strats fine - did that again - fine.
Sits in drive way two days - starts hard but goes then NEW SYMPTOM - 4-5 times over a 45min drive at eighty, the speed stays same but rpm jumps from steady 1.5 to 2 --without speed change or noticeable tranny/gear issue.
Then after an hour drive total, parked for 25 min (hot day in sun) and same as before ---won't turn over as though not getting gas. (don't know a bout smoke color I'm not there wife is reporting) Fuel filter light was on - she drained some of the filter , light went out but still won't turn over.
Making no sence. Okay - then not. Change fuel filter- okay then not. Change glow plugs = okay then not. It just doesn't add up or make any sense ... may just have to throw hands in air and bring it to someone...can't afford to be off the road like this (or risk getting stuck far away again) any longer
Sits in drive way two days - starts hard but goes then NEW SYMPTOM - 4-5 times over a 45min drive at eighty, the speed stays same but rpm jumps from steady 1.5 to 2 --without speed change or noticeable tranny/gear issue.
Then after an hour drive total, parked for 25 min (hot day in sun) and same as before ---won't turn over as though not getting gas. (don't know a bout smoke color I'm not there wife is reporting) Fuel filter light was on - she drained some of the filter , light went out but still won't turn over.
Making no sence. Okay - then not. Change fuel filter- okay then not. Change glow plugs = okay then not. It just doesn't add up or make any sense ... may just have to throw hands in air and bring it to someone...can't afford to be off the road like this (or risk getting stuck far away again) any longer
i ain't rite
Joined: Mar 2005
Posts: 65,511
Likes: 5,567
From: Marlboro Mental Hospital.
changed relay put in new plugs - hard first start then fine. later I started her up a bit of hesitation but started -drove 5 min / stop for 2. strats fine - did that again - fine.
Sits in drive way two days - starts hard but goes then NEW SYMPTOM - 4-5 times over a 45min drive at eighty, the speed stays same but rpm jumps from steady 1.5 to 2 --without speed change or noticeable tranny/gear issue.
Then after an hour drive total, parked for 25 min (hot day in sun) and same as before ---won't turn over as though not getting gas. (don't know a bout smoke color I'm not there wife is reporting) Fuel filter light was on - she drained some of the filter , light went out but still won't turn over.
Making no sence. Okay - then not. Change fuel filter- okay then not. Change glow plugs = okay then not. It just doesn't add up or make any sense ... may just have to throw hands in air and bring it to someone...can't afford to be off the road like this (or risk getting stuck far away again) any longer
Sits in drive way two days - starts hard but goes then NEW SYMPTOM - 4-5 times over a 45min drive at eighty, the speed stays same but rpm jumps from steady 1.5 to 2 --without speed change or noticeable tranny/gear issue.
Then after an hour drive total, parked for 25 min (hot day in sun) and same as before ---won't turn over as though not getting gas. (don't know a bout smoke color I'm not there wife is reporting) Fuel filter light was on - she drained some of the filter , light went out but still won't turn over.
Making no sence. Okay - then not. Change fuel filter- okay then not. Change glow plugs = okay then not. It just doesn't add up or make any sense ... may just have to throw hands in air and bring it to someone...can't afford to be off the road like this (or risk getting stuck far away again) any longer
ok, here is something else to try. when it will not start hot after driving for a while, pour cool, not cold water over the injector pump. if it starts up after this, the injector pump is bad.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
fordf150f250
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
2
Oct 22, 2016 05:51 AM
fordf150f250
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
5
Oct 21, 2016 12:47 PM
LustfulVengance
1987 - 1996 F150 & Larger F-Series Trucks
2
Jan 11, 2016 08:14 AM
rubberman56
1987 - 1996 F150 & Larger F-Series Trucks
1
Feb 20, 2015 12:07 AM
