engine surging when cold - Ford Powerstroke Diesel Forum
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post #1 of 8 Old 11-11-2007, 02:36 PM Thread Starter
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engine surging when cold

This is kinda weird. Now that its cold out. when i first leave if i set my cruise control it the RPM's will fluctuate quite a bit before it shifts to OD. It only does this the first time its run for the day and only if the cruise is set any ideas?

Email: Dave@powerstroke.org
2011 F150 Ecoboost Crew cab lariat. Custom tunes from KEM and 5Star, and Unleashed
2012 F150 Crew Cab Ecoboost stock for now-Totaled March 12 2015
2006 F250 ECSB Lariat 4x4

Leveling kit, 315/70/17 Kelly TSRs on Method race wheels
ARP studs and OEM gaskets done by Renegade Diesel
ECM and Atlas 40 FICM tuned by Bill at PHP SCT tunes by Truck Source Diesel. Gearhead, Innovative, Wildman and Tyrant diesel
Flowmaster/MBRP Hybrid Exhaust
Edge Insight CTS
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Bulletproof diesel FICM EGR Delete, Oil Cooler and Water Pump, and Light bar.
Dually LED lights from Stealth Automotive/Xpedition Outfitters
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post #2 of 8 Old 11-11-2007, 05:21 PM
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i dont have any ideas as a matter of fact though mine does something similar before the engine is up to normal operating temperature it surges at a lite steady throttle usually around thirty to thirtyfive mph hopefully someone can shed some light on this but at the very least here's a bump for ya

early 99 7.3 supercab xlt s/b auto 4x4
08 Tailgate
Isspro gauges (boost,pyro,trans temp)
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post #3 of 8 Old 11-13-2007, 08:15 AM Thread Starter
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Email: Dave@powerstroke.org
2011 F150 Ecoboost Crew cab lariat. Custom tunes from KEM and 5Star, and Unleashed
2012 F150 Crew Cab Ecoboost stock for now-Totaled March 12 2015
2006 F250 ECSB Lariat 4x4

Leveling kit, 315/70/17 Kelly TSRs on Method race wheels
ARP studs and OEM gaskets done by Renegade Diesel
ECM and Atlas 40 FICM tuned by Bill at PHP SCT tunes by Truck Source Diesel. Gearhead, Innovative, Wildman and Tyrant diesel
Flowmaster/MBRP Hybrid Exhaust
Edge Insight CTS
Coolant filter
Bulletproof diesel FICM EGR Delete, Oil Cooler and Water Pump, and Light bar.
Dually LED lights from Stealth Automotive/Xpedition Outfitters
No Limit Fab 6.0 Cold Air Intake
http://www.bulletproofdiesel.com/default.asp
http://nolimitfabrication.com/
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post #4 of 8 Old 11-13-2007, 11:38 AM Thread Starter
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Any more ideas

Email: Dave@powerstroke.org
2011 F150 Ecoboost Crew cab lariat. Custom tunes from KEM and 5Star, and Unleashed
2012 F150 Crew Cab Ecoboost stock for now-Totaled March 12 2015
2006 F250 ECSB Lariat 4x4

Leveling kit, 315/70/17 Kelly TSRs on Method race wheels
ARP studs and OEM gaskets done by Renegade Diesel
ECM and Atlas 40 FICM tuned by Bill at PHP SCT tunes by Truck Source Diesel. Gearhead, Innovative, Wildman and Tyrant diesel
Flowmaster/MBRP Hybrid Exhaust
Edge Insight CTS
Coolant filter
Bulletproof diesel FICM EGR Delete, Oil Cooler and Water Pump, and Light bar.
Dually LED lights from Stealth Automotive/Xpedition Outfitters
No Limit Fab 6.0 Cold Air Intake
http://www.bulletproofdiesel.com/default.asp
http://nolimitfabrication.com/
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post #5 of 8 Old 11-13-2007, 03:07 PM
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someone must have some ideas

early 99 7.3 supercab xlt s/b auto 4x4
08 Tailgate
Isspro gauges (boost,pyro,trans temp)
Ford AIS
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post #6 of 8 Old 11-13-2007, 03:18 PM
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thick trans oil doesnt allow the tranny to do things as efficiently...that and thick oil for the engine could have a bit to do with it. Ive never actually seen this concern that i know of but those are a few ideas....
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post #7 of 8 Old 11-13-2007, 03:44 PM
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thanks for your help marc

early 99 7.3 supercab xlt s/b auto 4x4
08 Tailgate
Isspro gauges (boost,pyro,trans temp)
Ford AIS
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post #8 of 8 Old 11-13-2007, 04:07 PM Thread Starter
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Thanks Marc

Email: Dave@powerstroke.org
2011 F150 Ecoboost Crew cab lariat. Custom tunes from KEM and 5Star, and Unleashed
2012 F150 Crew Cab Ecoboost stock for now-Totaled March 12 2015
2006 F250 ECSB Lariat 4x4

Leveling kit, 315/70/17 Kelly TSRs on Method race wheels
ARP studs and OEM gaskets done by Renegade Diesel
ECM and Atlas 40 FICM tuned by Bill at PHP SCT tunes by Truck Source Diesel. Gearhead, Innovative, Wildman and Tyrant diesel
Flowmaster/MBRP Hybrid Exhaust
Edge Insight CTS
Coolant filter
Bulletproof diesel FICM EGR Delete, Oil Cooler and Water Pump, and Light bar.
Dually LED lights from Stealth Automotive/Xpedition Outfitters
No Limit Fab 6.0 Cold Air Intake
http://www.bulletproofdiesel.com/default.asp
http://nolimitfabrication.com/
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