What kind of engine does a 99 Yukon have?
My 99 Yukon with Vortec 5.7L suddenly won’t run. It cranks over fine, starts in about 1 second (normal), but then dies 2-3 seconds later. Giving it a little bit of throttle while starting doesn’t make any difference.
What did my 02 Yukon XL die of?
Last summer my 02 yukon XL died while my wife was driving, she said it would lose power, and die, it restarted a couple of time, drive for a few miles, the same thing. we replaced the fuel filter, and got it home, test fuel pressure, all seemed okay.
What happens when the PCM turns off the fuel pump?
When it doesn’t receive the right password, it disables the fuel pump. When the key is turned to on, the fuel pump comes on to prime the system, so it will run for a couple of seconds, but then the PCM will turn the pump off if all is not well immediately after start.
Why does my Silverado turn off the fuel pump?
So, my suspicions about the fuel pump were wrong! The found a stored P1626 code, which means there was a communication problem between the Theft Deterrent Module and the PCM. When it doesn’t receive the right password, it disables the fuel pump.
My 99 Yukon with Vortec 5.7L suddenly won’t run. It cranks over fine, starts in about 1 second (normal), but then dies 2-3 seconds later. Giving it a little bit of throttle while starting doesn’t make any difference.
What kind of engine does a GMC Sierra 3500 have?
I have a 1999 GMC Sierra 3500 5.7 (350) Dually. Same problem. But now it takes longer then 15 minutes. I sprinkled fuel into the intake and it would run until the fuel ran out. Then it would cut off again. I check the fuel rail test port.
Why does my GMC Yukon engine start and then shut off?
Pressed it down and good pressure of fuel came out. I know it’s firing because it ran when I sprinkled fuel down the intake. On it’s own, it will start for a sec and then shut off. Something won’t allow the injectors to continue to pulse for some reason.
I have a 1999 GMC Sierra 3500 5.7 (350) Dually. Same problem. But now it takes longer then 15 minutes. I sprinkled fuel into the intake and it would run until the fuel ran out. Then it would cut off again. I check the fuel rail test port.
Why does my GM pickup engine not start?
How To Test The Fuel Pump On GM TBI Fuel Systems (for throttle body fuel injection fuel system equipped vehicles). A failure in one of the Passlock system’s components will cause the engine to start and then stall after a few seconds. This is due to the fact that the PCM, in your GM pickup or SUV, has disabled the fuel injectors.
How many miles does a 1998 GM Truck have?
Given that it is a ’98, there most likely are a few miles on it. Guessing around 160,000. With it being new to you just 5 months ago, we can count on it needing some TLC.
How often does a GMC Yukon engine die?
Engine cranks, briefly… Engine cranks, briefly starts and then dies. The engine cranks over, the engine will start and within one second the engine dies. This occurs once every other month. Took it to dealer for a major tune up and it still happens.
What to do if your GMC Yukon won’t start?
No matter what I do… take the battery cable off, pull and replace fuses… etc, it just will not start However, if you wait exactly 15 minutes, it will start perfectly fine. Somebody suggested to me that the security system was kicking in and shutting off the ignition coil until it automatically cleared after 15 minutes.
How often does my GMC Truck turn over?
So far this has been the case pretty much every time i am starting the truck cold. I’ll try to start it and it will turn over for about 3-4 seconds (have tried a bit longer, still no go) then i’ll stop and try to start it again, and the second time it fires right up.