GMC - Yukon :: 1999 Starts Up For 5 Minutes Then Dies And Won't Restart
Feb 18, 2014
My 1999 Yukon will start up, run for about 5 minutes at idle then die. Then it will not start again till the next day.
I hooked up a fuel pressure gauge to the fuel line at the fuel filter. It started up, and the pressure gauge went up to 54. I gave it some gas and pressure goes up to about 60 then back to 54 at idle. I sat and watched it for a bit then it died after about 5 minutes and the gauge went below 50 to about 48. I immediately tried to start again and the pressure actually drops a little while cranking to 45 and stayed there.
Whats weird is when I first started it up, I can hear the pump come on and it kicked the pressure up from 0 to 54. Then after dieing, I don't think I can hear the pump come on, and the pressure does not go up at all. I have a feeling tomorrow it will do the same thing, start up after sitting for awhile, then die after 5 minutes.
Does this sound like a fuel pump going bad? or does it sound like an electrical issue with the fuel pump?
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I replaced the left side battery and keep the correct charger on it to make sure its fully charged. I start the car and it dies after a few minutes, then I notice the charger is charging the battery.
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I have a scangauge and here are the readings I can get.
FICM main power is 47.5 - 48 volts at all times = good
FICM Logic power is 10.5 - 11.5 volts at all times = ???
IPR is 33% at idle = good Scangauge does not react fast enough to get info at startup.
ICP voltage KOEO 0.25 volts
Start 1.33 volts
Idle 1.11 - 1.13 volts dips briefly to 0.96 volts
ICP pressure Start 900+
Idle 830ish
Sync between CAMshaft and Crankshaft is 1 = good
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Changed CPS,EBPV sensor and tube,replaced IPR&fuel pressure regulator,batteries 100%,HPOP full,oil level full,fuel in bowl and lift pump runs(have not tested pressure but has good flow).After replacing IPR truck started quickly and idled for 15 minutes,decided to try a test drive ,truck stalled after reversing 10 ft as I shifted into first gear.Now no start!!Losing my mind.
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Does it every time. It started suddenly out of the blue. Start it up if i leave town i get 3 or 4 miles out if ni stay in town i might get back home from post office if i hustle. Let it sit 10 or 15 minutes and it will start again for 4 or 5 mins. again. I have replaced the distributor the whole unit and replaced the ignition switch, both parts are new.
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I have a 99 Volvo V70. Sometimes when I start it, it turns over and then dies right away. It may do it once, or it may do it several times, but it will start start eventually. I am bringing it in to the garage next week, but they don't seem to think they will be able to fix it unless it happens while the car is in the garage. Since it doesn't happen every day, I'm worried that they won't be able to fix the problem. If so, why did your car die right after starting?
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1999 4-runner 6-cylinder. starts and then immediately dies.
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When I try to crank the truck , it starts and immediately dies. This happened several times. The last attempt I began patting the accelerator when I turned the key. The truck cranked and I was able to keep it running by feathering the throttle. it ran rough. At higher RPM it ran ok. When I let it idle it idled rough. After engine warmed it idles and runs fine. Engine started without trouble when warm.
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I'm not sure whats wrong here but i think its a plugged exhaust or clogged catalytic converter but whats happening is when I drive my car is lacking power huge, sometimes ill push on the gas and it will hardly move and start chugging but if i push down more it will go. When i go on on ramps to the highway as soon as i hit 70km it starts to chug then i have to push the pedal to the floor to get going,then after a while the car will start to shake after 5-10 minutes of driving and i have to let it cool down or it will keep shaking or just go back onto city roads and it doesnt shake as bad. Once im off the highway my car will begin to shake more at 20km and 60km i have no clue why!
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Simple enough the truck starts then after about 30 seconds it bogs down and dies. I am getting these codes.
705 Transmission Range Sensor Out of Position
708 Transmission Range Sensor Circuit High Input
720 Output Speed Sensor Insufficient Input
743 Torque Converter Clutch Circuit
745 Pressure Control Solenoid Malfunction
1747 Electronic Pressure Control Solenoid A- Short Circuit
Sounds to me like the converter it locked up. What do you think? Its a 5.4L
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I have changed pickup filter in tank and cleaned 2 tube filters in tank i thought that would fix it.
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