4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

High Idle RPM

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Old 10-24-2003, 04:36 AM
  #1  
el_kid_1
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Default High Idle RPM

<FONT face="Verdana, Arial, Helvetica, sans-serif" size=2>
<P class=Msonormal style="MARGIN: 0in 0in 0pt"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Hello Folks, I have 2000GT (Roush Stage 2) with only 14,000 miles on it. My pony has the following mods: long tube BBK headers, 3:73 gears, Superchip, BBK cold air intake, 70mm throttle body and underdrive pulley system. The car was running excellent untila week ago when Icleaned the engine with a water hose.<SPAN style="mso-spacerun: yes"> </SPAN>That seems to be when all my problems with my idle started. <SPAN style="mso-spacerun: yes"></SPAN>Since last week, every time I start up the engine, it jumps to 2,700 rpm’s and won’t go down.<SPAN style="mso-spacerun: yes"> </SPAN>When cruising on the freeway it’s like having the cruise control on.<SPAN style="mso-spacerun: yes"> </SPAN>All the gauges appear normal.<SPAN style="mso-spacerun: yes"> </SPAN>On two other occasions when coming to stop sign or traffic light the rpm’s suddenly drop down killing the engine.<SPAN style="mso-spacerun: yes"> </SPAN>Does anyone have any ideas on what may be wrong with my car?<SPAN style="mso-spacerun: yes"> </SPAN>I want to take a shot on solving the problem by myself before taking it to my Ford Dealer.<SPAN style="mso-spacerun: yes"> </SPAN>Thanx. <SPAN style="mso-spacerun: yes"></SPAN><?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o></o></SPAN></P></FONT>


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Old 11-20-2003, 12:09 AM
  #2  
2kpony
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Default High Idle RPM



Mira Boricua, como esta todo. Your problem is simple, how in the hell did you even think about hosing the engine?..[img]file:///C:/documents%20and%20Settings/Ernesto%20Luis%20Torres/Desktop/StangNet%20Forums%20-%20Smilies%20List_files/banghead.gif border=[/img].. jodiste el carro hermano[img]file:///C:/documents%20and%20Settings/Ernesto%20Luis%20Torres/Desktop/StangNet%20Forums%20-%20Smilies%20List_files/rollinglaugh.gif border=[/img]. Why dont yo buy an OBDII decoder to see if you can get the diagnosis from the computer, OBD's are not expensive and is a good idea to have one handy everytime you fell that a problem is coming. I have a 2000 GT vert with all the powers, I live in TX though. I put a BBK Cold air intake , BBK 70 mm throttle body, 2 chambers flowmasters, magnaflow 0ffroad xpipe with MILS elim, 18 x 9" Cobrar chrome rims and 275 35 18 Tires. How canyou keep your car in good running conditon in PR, even avoidinga carjacking, you are really brave man. email if you have any other questions. Talk to you later paisano.</P>


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