P-brake....engine idles high??? Problem!
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Infidel
Joined: Aug 2003
Posts: 1,115
Likes: 2
From: Elkhorn WI
P-brake....engine idles high??? Problem!
Ive noticed that sometimes when the P-brake is on the light on the dash lights up and after a few minutes after starting it, the idle goes up to about 1300-1500 untill i hit the gas/brake/clutch. Is this normal???....some cold startup thing???
The problem is that i use the p-brake all the time....but the light on the dash only comes on once and a great while, what would cause this?
The problem is that i use the p-brake all the time....but the light on the dash only comes on once and a great while, what would cause this?
Fleet Mechanic
Joined: Feb 2005
Posts: 1,797
Likes: 1
From: Northern Colorado
Originally Posted by Fordbronco69
Ive noticed that sometimes when the P-brake is on the light on the dash lights up and after a few minutes after starting it, the idle goes up to about 1300-1500 untill i hit the gas/brake/clutch. Is this normal???....some cold startup thing???
The problem is that i use the p-brake all the time....but the light on the dash only comes on once and a great while, what would cause this?
The problem is that i use the p-brake all the time....but the light on the dash only comes on once and a great while, what would cause this?
The intermittant light sound like a loose or damaged component on your dash (loose bulb?) because if your parking brake switch was not working, the PCM would not kick the idle up (thinking the pbrake was not set). Auto trannys don't care about the pbrake.
Fleet Mechanic
Joined: Feb 2005
Posts: 1,797
Likes: 1
From: Northern Colorado
Originally Posted by Fordbronco69
Opps...my bad! I fergot to mention...it only idles high when the light comes on. Every time the light hasnt come on, the idle hasnt changed.
Postmaster
Joined: Nov 2003
Posts: 3,595
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From: Utah County, UT
the Pbrake switch is notorious for being bad, Mine comes on once in a great while as well, maybe 1 out of 50 times I set the P brake. Which isn't all that often since I have an auto. The RPMs still seem higher than normal though to me, mine idles up to 900-1200 depending on how cold it is and such.
Senior User
Joined: Jan 2006
Posts: 203
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2000 f350
Ah ha! that why mine does that too, sometime the light turns on when it wants to and I know its the stupid little plastic pos switch down on the pedal. I was wondering why the damn thing only kicks up to high idle sometimes and not others. I guess it makes sense though now!
Senior User
Joined: Mar 2004
Posts: 343
Likes: 0
When the light doesnt come on, get down and look up where the p brake is and you will see a ball bearing looking thing that is spring loaded. just touch it or push it in and Ill betch that light will come on. Ive got to the point now when mine doesnt come on, i just reach under there and touch that thingie and wholla, the light comes on. When you puch the p brake with your foot, that lil ball thing is supposed to pop out just a little, its a contact.
Last edited by Budkole; Feb 10, 2006 at 11:23 AM.
