Starting probs.
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Starting probs.
1999 F-250, V-10 auto..
Recently on first start up in the morning. I will turn key, the motor will try to start sounds like it grumbles and fires erraticly then imeadiatly shuts off. On the next try it starts up fine. Yesturday on the first try it did not even fire, I turned the key, engine turned over but not even a fire. then on the second try is started up.
Fuel pump comes on with key in "on" position,
I am going to change the fuel filter, but now I am looking into possibly a fuel pump?
Oh and the only trouble code spit out is for p0402 I think, The one for unsufficeint exaust gas resurculation flow detected,
thanks for any help
Joe
Recently on first start up in the morning. I will turn key, the motor will try to start sounds like it grumbles and fires erraticly then imeadiatly shuts off. On the next try it starts up fine. Yesturday on the first try it did not even fire, I turned the key, engine turned over but not even a fire. then on the second try is started up.
Fuel pump comes on with key in "on" position,
I am going to change the fuel filter, but now I am looking into possibly a fuel pump?
Oh and the only trouble code spit out is for p0402 I think, The one for unsufficeint exaust gas resurculation flow detected,
thanks for any help
Joe
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Originally Posted by NoMo
Welcome to the site.
Don't just throw parts at the situation. Perform some tests and narrow the problem down to fuel or spark.
Don't just throw parts at the situation. Perform some tests and narrow the problem down to fuel or spark.
What would give an indication of a problem with "spark"
tests etc. It only fails to start on the first attempt of the day.
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Next time you cold-start it, press the gas pedal a 1/2 or one inch or so and see if it starts right up.
If it does, that's the IAC sticking - just replace it. While you're in there, make sure it's ports are clear of carbon.
If it does, that's the IAC sticking - just replace it. While you're in there, make sure it's ports are clear of carbon.
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Nope that did not work,
Pressed in the pedal like described.
The motor starts and grumbles at 5 to 700 rpm for a second or two then runs up to 1500-2000, before dropping back down idle.
Same problem as before.
Pressed in the pedal like described.
The motor starts and grumbles at 5 to 700 rpm for a second or two then runs up to 1500-2000, before dropping back down idle.
Same problem as before.
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Originally Posted by NoMo
But it didn't die?
last week it would have a hard time starting and not die, just as it is doing now with the pedal pressed slightly.
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NoMo, thanks for jogging my memory about the EGR - the '99's usually have one.
I wonder if it's leaking?
Pull the vacuum line off the EGR valve. See if there's any vacuum there at idle.
With the vacuum line off and plugged, see if it's still idling/starting poorly.
Then, while at idle, apply vacuum (a piece of rubber hose and your mouth will work
) to the EGR and see if the engine stumbles or runs rough. If not, the EGR is clogged, and maybe leaking.
I wonder if it's leaking?
Pull the vacuum line off the EGR valve. See if there's any vacuum there at idle.
With the vacuum line off and plugged, see if it's still idling/starting poorly.
Then, while at idle, apply vacuum (a piece of rubber hose and your mouth will work
) to the EGR and see if the engine stumbles or runs rough. If not, the EGR is clogged, and maybe leaking.