2000 High Revs on Startup
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Junior User
Joined: Mar 2006
Posts: 86
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From: Midland, TX
2000 High Revs on Startup
I have a 2000 5.4L that when it starts goes up to about 1500 rpm, stays there for a 15 seconds, then drops down to about 650 or 700. In another thread I read that the butterfly valve on the throttle body may be sticking or dirty to cause this. I pulled the throttle body when adding a spacer and made sure everything was clean, and it was, so that was not the problem. Has anyone else seen this? Is it normal? What can I do to resolve this if it is not? Doesn't this cause wear to the engine? Any help would be appreciated.
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Junior User
Joined: Mar 2006
Posts: 86
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From: Midland, TX
Thanks for the reply. I have been watching it lately and it seems to go up to about 1600 rpm upon startup and then drops to about 1100 a few seconds after, then settlesw down to about 700. If this is the way it is supposed to be, I can live with it, like I said in earlier post I'm probably just paranoid.
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Joined: Feb 2005
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>> I've had mine since new and it does almost the exact same thing.
same here. not every time, but sometimes it does this.
same here. not every time, but sometimes it does this.
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Junior User
Joined: Jul 2005
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From: Lithia Springs, GA
I did notice yesterday mine will jump to about 1300-1400 rpms when it first fires (cold startup) then after a couple of seconds it will settle to about 1100 rpms for about 10-12 seconds then down to 700-800. It has always started this way, so I don't think you have a problem with yours.
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Thread Starter
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Junior User
Joined: Mar 2006
Posts: 86
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From: Midland, TX
I added an Air Raid Throtle Body Spacer to hopefully increase the mileage. I have not driven it enough tosee if it helped, but it does seem more responsive. I may have fallen victim to hype, I'll let you know after a couple of more tanks of gas.
