Is My PSD Normal?
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New User
Joined: Jun 2004
Posts: 21
Likes: 0
Is My PSD Normal?
Hey guys i have a 2003 PSD 7.3 I live in South FLA, Last night it got into the 20s for the first time in a while, The AM i started the truck and it was revving at 1000 Rpm;s and the exaust sounded funny, it was staying at 1000 rpms for a while so i jumped in, and pressed the brakes, and when i did that the truck when back to normal idle, and the exacust sounded normal again, Is this normal for the cold?
Laughing Gas
Joined: Apr 2002
Posts: 1,007
Likes: 1
From: Newport News
Yep, this is normal. Usually at 40* or colder it will cause the PCM to kick into high idle after a set amount of time determined by the conditions. The EBPV also is closed to help the truck warm up quicker, which in turn usually makes the truck sound like a jet engine warming up. I have a straight 4" exhuast with no cat and it's really loud when it kicks up to 1000 RPM or so.
Fleet Mechanic
Joined: Nov 2004
Posts: 1,427
Likes: 10
From: Templeton, Massachussetts
Originally Posted by basstardo
Yep, this is normal. Usually at 40* or colder it will cause the PCM to kick into high idle after a set amount of time determined by the conditions. The EBPV also is closed to help the truck warm up quicker, which in turn usually makes the truck sound like a jet engine warming up. I have a straight 4" exhuast with no cat and it's really loud when it kicks up to 1000 RPM or so.
i looked in my mitchell on demand and there is not a flow chart for this problem.
thanks alot
Elder User
Joined: Jul 2004
Posts: 849
Likes: 0
From: Leesburg , Fl.
Originally Posted by 18vtx00
i have a '96 and i have been looking for the criteria that the pcm needs to see from various sensors to tell the EBPV to activate. no one seems to know. i know the the butterfly is moving freely and it is cold enough, but that solenoid/motor does not move - ever. so i need to know how to test the circuit. instead of just assuming it is the motor. 5 or 12vdc? below 40*? e-brake on?
i looked in my mitchell on demand and there is not a flow chart for this problem.
thanks alot
i looked in my mitchell on demand and there is not a flow chart for this problem.
thanks alot
Fleet Mechanic
Joined: Nov 2004
Posts: 1,427
Likes: 10
From: Templeton, Massachussetts
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Hotshot
Joined: Oct 2003
Posts: 13,011
Likes: 742
From: Here in No. Calif
chadt1980
If you plug your truck in at nite ( block heater) it`l be nice and warm in the a.m
hanklin
If you plug your truck in at nite ( block heater) it`l be nice and warm in the a.m
hanklin
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