Hard to start when warm?
Ok, tried some basic testing... Until tomorrow I don't have time to actually dive into diagnosing. I have to work tonight, so I need some sleep! LOL!
So I had to run some errands around town. Driving nicely. Seemed to lose a bit of power when it was warm, but I could be paranoid...
After about driving for an hour or so, I get home (all the while truck was driving nicely, no extra loss of power). I decide to test how long it needs to sit to start up fine...
I try after 1 minute, it's cranking, but not firing. I try again, holding the gas pedal, and it chugs to life. Drive around the block to clear it up.
After 5 minutes, cranks for about 5 seconds, then chugs to life. I didn't need to hold the gas pedal at all. Drive around again to clear it up.
After 10 minutes, cranks for 5 seconds, then fires nicely. No chugging at all... Drive around again.
Last time, waited 15 minutes. Cranks for about 1 second and fires like it was dead cold?!?!?
Now I'm at an absolute loss with this... If it's excessive fuel, could it be evaporating in that 15 minutes? If its the ignition coil or ICM, could it cool off enough to be normal again?
And no, it's not the fuel pump. Cold or hot the psi when the key is turned on is 64psi. While running 58 psi. I checked it quickly before I started it, when it was cold. Then while trying this stuff out and driving around.
I may just bite the bullet and get a coil and icm, or I may just go to the wreckers and try scooping a few to see if any difference is made.
So I had to run some errands around town. Driving nicely. Seemed to lose a bit of power when it was warm, but I could be paranoid...
After about driving for an hour or so, I get home (all the while truck was driving nicely, no extra loss of power). I decide to test how long it needs to sit to start up fine...
I try after 1 minute, it's cranking, but not firing. I try again, holding the gas pedal, and it chugs to life. Drive around the block to clear it up.
After 5 minutes, cranks for about 5 seconds, then chugs to life. I didn't need to hold the gas pedal at all. Drive around again to clear it up.
After 10 minutes, cranks for 5 seconds, then fires nicely. No chugging at all... Drive around again.
Last time, waited 15 minutes. Cranks for about 1 second and fires like it was dead cold?!?!?
Now I'm at an absolute loss with this... If it's excessive fuel, could it be evaporating in that 15 minutes? If its the ignition coil or ICM, could it cool off enough to be normal again?
And no, it's not the fuel pump. Cold or hot the psi when the key is turned on is 64psi. While running 58 psi. I checked it quickly before I started it, when it was cold. Then while trying this stuff out and driving around.
I may just bite the bullet and get a coil and icm, or I may just go to the wreckers and try scooping a few to see if any difference is made.
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syriusly
2nd Generation S-series (1995-2005) Tech
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Feb 23, 2013 07:04 AM
freeman43
2nd Generation S-series (1995-2005) Tech
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Dec 3, 2012 02:52 PM





