high engine rev at start up

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high engine rev at start up - 5/11/2008 2:44:37 PM    dojman   Posts: 1 Joined: 5/11/2008 Status: offline Hi I have a 2000 dakota 3.9l v-6.  When I start my engine cold it usually revs to almost 2000 rpm before dropping to normal.  Any ideas how to fix this?  thx Post #: 1

RE: high engine rev at start up - 5/11/2008 2:58:40 PM    scandal669 Posts: 272 Joined: 1/16/2008 Status: offline its the choke and it is that way to naturally warm up the engine...its normal. let it be for a minute and then hit the gas real quick while in neutral and the rpm's should come down...if not, then spray some carb and choke cleaner all over the outside of the throttle body concentrating on the choke area and throttle linkage. _____________________________ 99 Dodge Dakota Sport 4x4 Extended cab PB3 - Intense Blue, Pearl Coat 5.2L 318 5 speed manual 31x10.5x15 http://i49.photobucket.com/albums/f295/scandal669/010.jpg (in reply to dojman) Post #: 2

RE: high engine rev at start up - 5/11/2008 3:38:39 PM    f0x672   Posts: 852 Joined: 8/23/2006 Status: offline theres no chokes on these trucks, they are fuel injected, clean your IAC (intake air control) solenoid for a first step, its on the throttle body _____________________________ 95 cirrus - 2.5l V6, 4 speed auto 01 dakota- 3.9l V6, 4 speed auto 4x4 ext. cab 02 triumph - 786 cc inline twin, 5 speed manual 03 honda 400ex - 400cc single cyl., 5 speed manual 07 toyota yaris - 1.5l I4, 4 speed auto (in reply to dojman) Post #: 3

RE: high engine rev at start up - 5/11/2008 5:16:25 PM    varsis Posts: 1204 Joined: 10/8/2006 Status: offline Im sure mine revs to 2k than drops almost right away though.. Just right when you start it though. _____________________________ 1997 dakota v6, 31's Shift Kit, Rebuilt Tranny. Upcoming mods: 5.9L magnum engine (In progress) Headers True Dual Exhaust with x pipe. K & N Drop in Throttle Body not sure what else! (in reply to f0x672) Post #: 4

RE: high engine rev at start up - 5/12/2008 5:08:44 AM    shrpshtr325 Posts: 3482 Joined: 1/29/2007 From: K-Town, NJ Status: offline yea i think mine jumps when you first turn the key too, but then it drops to 900-1000(when cold) until it warms up some then drops to like 500+/- but i have the 4.7, im pretty sure my dads truck jumps up there and falls back down when you turn the key too tho (he has the 3 _____________________________ quote: BY: batman13 i think you can get into mine (in reply to varsis) Post #: 5

RE: high engine rev at start up - 5/12/2008 9:04:15 AM    swalinemx   Posts: 6 Joined: 5/11/2008 Status: offline On the 4.7, rev'ing to 2000 rpm is not right.  I agree, clean the IAC or replace it along with the TPS.  (in reply to shrpshtr325) Post #: 6

RE: high engine rev at start up - 5/12/2008 9:40:17 AM    LoudPedal45 Posts: 257 Joined: 12/14/2007 From: North Central Kansas Status: offline i have the 4.7 and it only goes to 1800 and quickly calms down to 500-700 reguardless of the weather _____________________________ 00 dodge dakota quad cab 4.7L white quote: bobby aldrige we better get the drug dog in here...let me smell them burgers....those arnt hamburgers, those are cocaine patties (in reply to swalinemx) Post #: 7

RE: high engine rev at start up - 5/12/2008 10:34:22 AM    scandal669 Posts: 272 Joined: 1/16/2008 Status: offline quote: ORIGINAL: f0x672 theres no chokes on these trucks, they are fuel injected, clean your IAC (intake air control) solenoid for a first step, its on the throttle body that was what i meant... _____________________________ 99 Dodge Dakota Sport 4x4 Extended cab PB3 - Intense Blue, Pearl Coat 5.2L 318 5 speed manual 31x10.5x15 http://i49.photobucket.com/albums/f295/scandal669/010.jpg (in reply to f0x672) Post #: 8

RE: high engine rev at start up - 5/12/2008 11:59:10 AM    shrpshtr325 Posts: 3482 Joined: 1/29/2007 From: K-Town, NJ Status: offline yea i payed attention to what mine spikes to when i turn it on and its more like 1200-1300 then comes back down relatively quickly(but its in the 60s-70s here so its kind of warm) _____________________________ quote: BY: batman13 i think you can get into mine (in reply to scandal669) Post #: 9

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