Trouble..7.3
Lead Driver
Joined: Sep 2005
Posts: 9,399
Likes: 188
From: Norco,CA
Can you test fuel pressure? If it drops off during cranking and your below 1/4 tank, you need to drop the tank and fix the pickup. You need 10.5 volts while cranking to start. And even though you plug it in, the heater could of blown out.
Chet
Chet
Laughing Gas
Joined: Aug 2010
Posts: 1,098
Likes: 6
From: Ventura co.
You need to check the Hpop. it may have bled out while sitting for 5 months.
If it empty-ed it's self you need to fill it. it will only fill to about 3/4 of an inch from the top. Take the hex head screw off the top and look in it. if you don't see oil, put oil in.
The truck will not prime the injectors if its empty.
Also, the ipr could be stuck. and also try unplugging the icp and see if it starts.
SEE LINK
https://www.ford-trucks.com/forums/a...6&d=1207864940
If it empty-ed it's self you need to fill it. it will only fill to about 3/4 of an inch from the top. Take the hex head screw off the top and look in it. if you don't see oil, put oil in.
The truck will not prime the injectors if its empty.
Also, the ipr could be stuck. and also try unplugging the icp and see if it starts.
SEE LINK
https://www.ford-trucks.com/forums/a...6&d=1207864940
Post Fiend
Joined: Sep 2003
Posts: 6,096
Likes: 28
From: Mesa AZ
No I do not. He said turbo was dusty, not damaged, but looked like it had been sucking in dust.
Just as a footnote, the mechanic has a pretty good name for himself. He also said he will take out the new parts if the truck won't start, didn't believe in charging me extra if he couldn't get it running.
Just as a footnote, the mechanic has a pretty good name for himself. He also said he will take out the new parts if the truck won't start, didn't believe in charging me extra if he couldn't get it running.
Lead Driver
Joined: Jan 2006
Posts: 6,267
Likes: 5
Filling the tank up would also be a good idea at least to see if thats whats going on.
Lead Driver
Joined: Jan 2006
Posts: 6,267
Likes: 5
You need to check the Hpop. it may have bled out while sitting for 5 months.
If it empty-ed it's self you need to fill it. it will only fill to about 3/4 of an inch from the top. Take the hex head screw off the top and look in it. if you don't see oil, put oil in.
The truck will not prime the injectors if its empty.
SEE LINK
https://www.ford-trucks.com/forums/a...6&d=1207864940
If it empty-ed it's self you need to fill it. it will only fill to about 3/4 of an inch from the top. Take the hex head screw off the top and look in it. if you don't see oil, put oil in.
The truck will not prime the injectors if its empty.
SEE LINK
https://www.ford-trucks.com/forums/a...6&d=1207864940
If he's getting white smoke while cranking, the injectors should be firing at least decently right?
Lead Driver
Joined: Jan 2006
Posts: 6,267
Likes: 5
Was the fuel bowl full?
Lead Driver
Joined: Jan 2006
Posts: 6,267
Likes: 5
I have a feeling if you can find a good guy to look at this it will be running better than ever in an afternoon, for cheap.
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Thread Starter
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New User
Joined: May 2012
Posts: 20
Likes: 0
no, not at first, after add more fuel and changing filter it was good, checked again, and it was full.
Laughing Gas
Joined: Aug 2010
Posts: 1,098
Likes: 6
From: Ventura co.
couple of things to look at.
Un-plug the icp and try to start it. its the plug on the driver side valve cover up front.
it will set the fuel pressure to default settings and may start. Also look close at the plug. they sometimes leak and short out. look in the plug on the censor and wiring harness side for any sign on oil,
Also check the ipr. Its on the back side of the Hpop. Check to see if the brass nut is still on the ipr valve. if so, make sure it's tight. The ipr's do get stuck. if it is you will need to replace it.
picture link https://www.ford-trucks.com/forums/m...55-sensors.jpg
http://i288.photobucket.com/albums/l...o/IPRHPOPb.jpg
Un-plug the icp and try to start it. its the plug on the driver side valve cover up front.
it will set the fuel pressure to default settings and may start. Also look close at the plug. they sometimes leak and short out. look in the plug on the censor and wiring harness side for any sign on oil,
Also check the ipr. Its on the back side of the Hpop. Check to see if the brass nut is still on the ipr valve. if so, make sure it's tight. The ipr's do get stuck. if it is you will need to replace it.
picture link https://www.ford-trucks.com/forums/m...55-sensors.jpg
http://i288.photobucket.com/albums/l...o/IPRHPOPb.jpg
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
My gut says the cure is going to be crazy simple.
Under 1/4 and you added... how many liters in your Jerry cans? US Jerry cans hold 19 liters. Do you have a helper? If you look in the front passenger wheel well and look straight at the motor to the right, you should see the end of a tube angled down and to the rear. That is your fuel drain tube. If you go to the top of the engine and look at the back of the fuel filter, you will see the yellow handle for the fuel bowl drain valve. Hook up a long tube from the fuel drain to your Jerry can, then open the drain valve. If you could get a helper to turn the key (not trying to start), you can watch your fuel flow from the pump - it should be really aggressive.
CPS - do you see RPMs when you are cranking?
I'm joining late, but I didn't spot a response to the question if you are getting about 11 volts or more while cranking the starter.
There are links in my signature. The last link has useful information for situations like this, print it up and use it and/or share it with a good mechanic that has a computer interface for your truck.
150K miles? As long as it passes the compression test when you get past the no-start condition, you're golden. Compression test: Flip the oil filler cap upside down on the fill spout while it's running and it should stay or gently hover. Popping up is not a good sign. I bought mine with 220K and started modifying it for more power and better fuel economy. There are many members here with more than 400,000 miles and still going strong. A 7.3 will outlast anything they've sold after the 2003 model year - you've got a winner and you'd likely be disappointed if you replaced it with newer.
Under 1/4 and you added... how many liters in your Jerry cans? US Jerry cans hold 19 liters. Do you have a helper? If you look in the front passenger wheel well and look straight at the motor to the right, you should see the end of a tube angled down and to the rear. That is your fuel drain tube. If you go to the top of the engine and look at the back of the fuel filter, you will see the yellow handle for the fuel bowl drain valve. Hook up a long tube from the fuel drain to your Jerry can, then open the drain valve. If you could get a helper to turn the key (not trying to start), you can watch your fuel flow from the pump - it should be really aggressive.
CPS - do you see RPMs when you are cranking?
I'm joining late, but I didn't spot a response to the question if you are getting about 11 volts or more while cranking the starter.
There are links in my signature. The last link has useful information for situations like this, print it up and use it and/or share it with a good mechanic that has a computer interface for your truck.
150K miles? As long as it passes the compression test when you get past the no-start condition, you're golden. Compression test: Flip the oil filler cap upside down on the fill spout while it's running and it should stay or gently hover. Popping up is not a good sign. I bought mine with 220K and started modifying it for more power and better fuel economy. There are many members here with more than 400,000 miles and still going strong. A 7.3 will outlast anything they've sold after the 2003 model year - you've got a winner and you'd likely be disappointed if you replaced it with newer.
Thread Starter
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New User
Joined: May 2012
Posts: 20
Likes: 0
Talked to the mechanic, he did not seem convinced any of the suggestions would work. He was also convinced the truck was not running before, (for what ever reason?). It was running great before I parked it.
I am taking it over to another guy who works only on diesels and has been for 35 years. He told me more times or not its usually something small. Crossing fingers. he said he would give it a go.
I am taking it over to another guy who works only on diesels and has been for 35 years. He told me more times or not its usually something small. Crossing fingers. he said he would give it a go.