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High Idle surge on startup??

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Old Oct 2, 2006 | 12:10 PM
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Trooks2001's Avatar
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From: Valdosta, GA
High Idle surge on startup??
On my '05 when I start up first thing in the morning or any cold start for that matter my truck idles really high for about 5-6 secs then goes to normal. Anyone else experience this?
 
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Old Oct 2, 2006 | 12:15 PM
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Originally Posted by Trooks2001
On my '05 when I start up first thing in the morning or any cold start for that matter my truck idles really high for about 5-6 secs then goes to normal. Anyone else experience this?
Yep. I figure it's the engine warming itself up.
 
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Old Oct 2, 2006 | 12:28 PM
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Same here on my 04.
 
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Old Oct 2, 2006 | 12:38 PM
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Yup it shoots up to 1500-1600 rpms then takes about 20 seconds to climb down to normal rpms.
 
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Old Oct 2, 2006 | 12:45 PM
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From: Valdosta, GA
Thanks for the quick responses guys. Guess it must be some what normal then...
 
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Old Oct 2, 2006 | 01:46 PM
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Yes, I have this as well. It's incredibly annoying when my exhaust is @ 1600rpms @ 6 in the morning. Same boat as you.
 
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Old Oct 2, 2006 | 01:49 PM
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My 06 does the same thing.
 
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Old Oct 2, 2006 | 01:55 PM
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FX4_Guy's Avatar
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From: North Little Rock, Arkansas
Check out page 190 in the owners manual:
Originally Posted by Fordmanual
A computer system controls the engine’s idle revolutions per minute
(RPM). When the engine starts, the idle RPM runs higher than normal in
order to warm the engine. If the engine idle speed does not slow down
automatically, have the vehicle checked.
 
Last edited by FX4_Guy; Oct 2, 2006 at 02:01 PM.
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Old Oct 2, 2006 | 02:01 PM
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Yes it is normal.We have a few new owners call or bring their trucks in.No tsb or ssm available...Paul
 
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Old Oct 2, 2006 | 02:01 PM
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From: Valdosta, GA
Originally Posted by Josiah
Yes, I have this as well. It's incredibly annoying when my exhaust is @ 1600rpms @ 6 in the morning. Same boat as you.
I know, the neighbors prolly dont like my true duals at 7am
 
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Old Oct 2, 2006 | 04:00 PM
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From: Plano, TEXAS
Did you just notice this? I mean come on, I noticed it on the first cold start after I bought my truck..
 
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Old Oct 2, 2006 | 04:10 PM
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From: Valdosta, GA
it seems to be gettin louder
 
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Old Oct 2, 2006 | 04:59 PM
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Totally OT since we've solved this mystery but...

Trooks -- your truck looks awesome...one of the best I've seen in fact. Nice work with it bud...
 
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Old Oct 2, 2006 | 05:03 PM
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From: Georgia on my mind...
That's normal. It helps light the catalysts off faster on cold start. Don't worry about it.
 
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Old Oct 2, 2006 | 05:10 PM
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From: DFW
If you dont like the sound, just drop it into gear. it drops imediatly.

Some ppl wait for the rpm to drop on their own, but im usually leaving late to go somehwere so yah i just go right into drive.

And mines about 30-35 seconds before its down to normal idle speed.

-Patrick
 
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