7.3 start - Ford Powerstroke Diesel Forum
 
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post #1 of 7 Old 12-07-2009, 08:41 PM Thread Starter
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7.3 start

I jus bought this truck it runs great.when I start it in the morning its fires up fine I will let it run for alittle it idles good then the idle goes up to 1,000 rpms an if I tap the gas it goes back to normal.but once it warm it wont do that.its a 2000 with a tw chip an str8 pipe.
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post #2 of 7 Old 12-07-2009, 08:43 PM
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Originally Posted by 04yfz450nj View Post
I jus bought this truck it runs great.when I start it in the morning its fires up fine I will let it run for alittle it idles good then the idle goes up to 1,000 rpms an if I tap the gas it goes back to normal.but once it warm it wont do that.its a 2000 with a tw chip an str8 pipe.
Sounds like the idle is just going up to help it warm up faster. My truck does it all the time when its cold.

--DREW

2001 F350 -- SOLD
ATS Stage 2 Built Tranny, Adrenaline HPOP, AFE Stage 2 Intake, ATS Compressor Housing, Wicked Wheel, Auto Meter Gauges, PHP Chip, 4" MBRP Turbo Back, 4 Inch Lift, 35" Pro Comp Extreme AT, 18" American Racing ATX AX3985, HID Harley Lights, Alpine System, Herculined Rocker Panels, Iron Bull Front Bumper, 5% Tint
386 HP 754 Torque
2012 F150 Lariat Ecoboost
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post #3 of 7 Old 12-07-2009, 08:48 PM Thread Starter
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oh ok cool jus kinda freaked me out it is cold out its 30 thanks man
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post #4 of 7 Old 12-07-2009, 08:49 PM
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This is completely normal ops. It will idle down if you hit the brake peddle too. I have an 1100 high idle on my chip so I can selelct high idle for warm ups and idle air conditioning performance.

Jeff
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'11 f150
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post #5 of 7 Old 12-07-2009, 08:53 PM
Stupidity pisses me off

 
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There is actually a valve that closes in the exaust behind the turbo when it's cold. It helps the truck warm up faster by creating more backpressure. It will re open when you hit the break or gas pedal. It will also close again if you let the truck idle after hitting either pedal and it's still cold.

2006 F350 CREW CAB LONG BED KING RANCH

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You are not right man, but i still think your funny as hell!
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post #6 of 7 Old 12-07-2009, 09:01 PM Thread Starter
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ok thanks guys talk about a fast reply thanks again.
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post #7 of 7 Old 12-07-2009, 09:02 PM
Stupidity pisses me off

 
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