302 wont stay running after reaching operating temp
banana republic
Joined: Jan 2008
Posts: 8,819
Likes: 0
Use the KISS method first...Keep It Simple Stupid
Look to the the big three first. Spark, air, fuel. If an engine has these three things, in the right combination, it should run. If it has all three, but one is out of synch, then it won't run...If the A/F ratio is wrong, it should still fire over, but may either run like crap, or only run for a second or two. Your issue is not this as it runs fine for a decent amount of time. So, this pretty much eliminates the fuel portion of the equasion(sp). (Of course, like dirt said, it COULD be clogging up as it goes along...But it is unlikely...Same deal with the fuel pump. both are possible, but not likely) so, with the air "ok", and the fuel "ok"...That leaves the sparkerator.
Now, issues can and often DO happen with the electrical system. This is the most likely weak link in the system. Then, we look to the most likely PARK of this "most likely weak link" in the system. The plug wires, and then the dizzy and the parts ON the dizzy. Now I have seen a car, with the TFI going bad, have spark, but the car still didn't run. Because the TFI was causing it to throw spark at the wrong times because it was going bad. 
This little part gets my vote...and at the cost, I would say it's a winner. I'm waiting on pins and needles to find out.
Look to the the big three first. Spark, air, fuel. If an engine has these three things, in the right combination, it should run. If it has all three, but one is out of synch, then it won't run...If the A/F ratio is wrong, it should still fire over, but may either run like crap, or only run for a second or two. Your issue is not this as it runs fine for a decent amount of time. So, this pretty much eliminates the fuel portion of the equasion(sp). (Of course, like dirt said, it COULD be clogging up as it goes along...But it is unlikely...Same deal with the fuel pump. both are possible, but not likely) so, with the air "ok", and the fuel "ok"...That leaves the sparkerator.
Now, issues can and often DO happen with the electrical system. This is the most likely weak link in the system. Then, we look to the most likely PARK of this "most likely weak link" in the system. The plug wires, and then the dizzy and the parts ON the dizzy. Now I have seen a car, with the TFI going bad, have spark, but the car still didn't run. Because the TFI was causing it to throw spark at the wrong times because it was going bad. This little part gets my vote...and at the cost, I would say it's a winner. I'm waiting on pins and needles to find out.
Bondsman
Joined: Oct 2005
Posts: 8,023
Likes: 0
Blasphemer
Joined: Feb 2009
Posts: 5,020
Likes: 0
Use the KISS method first...Keep It Simple Stupid
Look to the the big three first. Spark, air, fuel. If an engine has these three things, in the right combination, it should run. If it has all three, but one is out of synch, then it won't run...If the A/F ratio is wrong, it should still fire over, but may either run like crap, or only run for a second or two. Your issue is not this as it runs fine for a decent amount of time. So, this pretty much eliminates the fuel portion of the equasion(sp). (Of course, like dirt said, it COULD be clogging up as it goes along...But it is unlikely...Same deal with the fuel pump. both are possible, but not likely) so, with the air "ok", and the fuel "ok"...That leaves the sparkerator. Now, issues can and often DO happen with the electrical system. This is the most likely weak link in the system. Then, we look to the most likely PARK of this "most likely weak link" in the system. The plug wires, and then the dizzy and the parts ON the dizzy. Now I have seen a car, with the TFI going bad, have spark, but the car still didn't run. Because the TFI was causing it to throw spark at the wrong times because it was going bad.
This little part gets my vote...and at the cost, I would say it's a winner. I'm waiting on pins and needles to find out.
Look to the the big three first. Spark, air, fuel. If an engine has these three things, in the right combination, it should run. If it has all three, but one is out of synch, then it won't run...If the A/F ratio is wrong, it should still fire over, but may either run like crap, or only run for a second or two. Your issue is not this as it runs fine for a decent amount of time. So, this pretty much eliminates the fuel portion of the equasion(sp). (Of course, like dirt said, it COULD be clogging up as it goes along...But it is unlikely...Same deal with the fuel pump. both are possible, but not likely) so, with the air "ok", and the fuel "ok"...That leaves the sparkerator.
Now, issues can and often DO happen with the electrical system. This is the most likely weak link in the system. Then, we look to the most likely PARK of this "most likely weak link" in the system. The plug wires, and then the dizzy and the parts ON the dizzy. Now I have seen a car, with the TFI going bad, have spark, but the car still didn't run. Because the TFI was causing it to throw spark at the wrong times because it was going bad. This little part gets my vote...and at the cost, I would say it's a winner. I'm waiting on pins and needles to find out.
Brilliant deduction, watson.
I have no idea what the problem could be. Im not really up to snuff on my 5.0 EFI-ology. I would say start replacing the stupid simple $20 parts first as well. Even if its not the problem. Reason being is you can eliminate those first. Nothing sucks more than dropping hundreds of dollars on a part that doesnt fix the problem and then it turns out to be one of those little plastic pieces of shit that break all the time and are dirt cheap.
__________________
(USER WAS BANNED FOR THIS POST)
(USER WAS BANNED FOR THIS POST)
Thread Starter
TR Balla Donor Supreme
Joined: Mar 2004
Posts: 533
Likes: 0
Pulled codes today and and it came back clear. It's not my truck so I never really checked if the light was on before. but after reading what you all have said I went ahead and got the tgi module and and viola, runs great even after reaching operating temp. My buddy drove the truck around for awhile today and she ran smooth, no hesitation no sputtering and dieing. I believe we got the problem solved. Thanks guys your help is greatly appreciated.
__________________
TR's resident A&P mechanic
I make a passive income from the comfort of my home, visit my blog, I would love to show you how to do the same
ISE Automotive-Mobile Mechanic and 24-7 Roadside assistance services from oil changes to full track car builds we do it all and get it done right the first time
TR's resident A&P mechanic
I make a passive income from the comfort of my home, visit my blog, I would love to show you how to do the same
ISE Automotive-Mobile Mechanic and 24-7 Roadside assistance services from oil changes to full track car builds we do it all and get it done right the first time
LOL
banana republic
Joined: Jan 2008
Posts: 8,819
Likes: 0
Pulled codes today and and it came back clear. It's not my truck so I never really checked if the light was on before. but after reading what you all have said I went ahead and got the tgi module and and viola, runs great even after reaching operating temp. My buddy drove the truck around for awhile today and she ran smooth, no hesitation no sputtering and dieing. I believe we got the problem solved. Thanks guys your help is greatly appreciated.
Tommy, good job! Thats ALL you man!
