F250 diesel help

scooterturnip · 11-20-2006, 07:17 PM

2001 F250 4x4 diesel, 107,000. After approximately 1 minute, rpm increases to about 1200. After tapping the accelerator; returns to normal idle rpm. After another minute raises again. Any thoughts would be appreciated. Thanks

mrjohnwayne · 11-21-2006, 08:10 AM

Does it do it in the mornings when cold? If so it is completely normal. The idle raises to get EGT's up. There also is a valve built into the turbo to aid in the heating up of the motor. Makes it sound wierd. Kinda like it is hissing at you.

scooterturnip · 11-22-2006, 05:25 PM

I noticed it in Illinois while bow hunting last week. It was real cold in the mornings and haven't noticed it in Houston when I got back. Seemed odd, because when I tap the accelerator; it returns to normal idle. I hope you are right. I sincerely appreciate the info. Thanks

mrjohnwayne · 11-22-2006, 11:05 PM

It is completely normal. It will also quit if you hit the brake. Next time it does it, if it decides to get cold here in texas, hit the brake and you'll see.

11-20-2006, 07:17 PM	#1
scooterturnip Junior Member Join Date: Nov 2006 Posts: 2	F250 diesel help 2001 F250 4x4 diesel, 107,000. After approximately 1 minute, rpm increases to about 1200. After tapping the accelerator; returns to normal idle rpm. After another minute raises again. Any thoughts would be appreciated. Thanks

11-21-2006, 08:10 AM	#2
mrjohnwayne Moderator Join Date: Apr 2005 Location: Texas Posts: 3,104	Does it do it in the mornings when cold? If so it is completely normal. The idle raises to get EGT's up. There also is a valve built into the turbo to aid in the heating up of the motor. Makes it sound wierd. Kinda like it is hissing at you. __________________ John Wayne 2000 F-350 7.3L Powerstroke 4x4

11-22-2006, 05:25 PM	#3
scooterturnip Junior Member Join Date: Nov 2006 Posts: 2	Thanks I noticed it in Illinois while bow hunting last week. It was real cold in the mornings and haven't noticed it in Houston when I got back. Seemed odd, because when I tap the accelerator; it returns to normal idle. I hope you are right. I sincerely appreciate the info. Thanks

11-22-2006, 11:05 PM	#4
mrjohnwayne Moderator Join Date: Apr 2005 Location: Texas Posts: 3,104	It is completely normal. It will also quit if you hit the brake. Next time it does it, if it decides to get cold here in texas, hit the brake and you'll see. __________________ John Wayne 2000 F-350 7.3L Powerstroke 4x4

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