truck hesitates when cold. - Ford Powerstroke Diesel Forum

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post #1 of 16 Old 12-19-2006, 05:38 PM Thread Starter
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truck hesitates when cold.

I have a 2000 f250 7.3 diesel, and ever since the weather has gotten colder its seems to hesitate until it warms up. Seems to be hesitating at lower rpm's,also notice when i have the heater on it sounds like the blower motor is pushing more air thru the vents. Just wondering if anyone can help me figure out my problem without spending a ton of money.
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post #2 of 16 Old 12-19-2006, 05:49 PM
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These engines THRIVE on heat... until they warm up, they're sluggish.

You may need to elaborate for us to really help out.

2001 F250
11.62 @ 115.79
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post #3 of 16 Old 12-19-2006, 05:59 PM Thread Starter
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It seems if I'm driving down the road with my foot held steady on the throttle the engine will haul down for about 5 seconds and then it regains its power. At the same it hauls down the heater sounds like it is getting a boost of air.
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post #4 of 16 Old 12-19-2006, 08:26 PM
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my 99 does the same just does not like the cold. If I have my edge on it wont go for crap until im up to operating temp.

they need heat to ignite the fuel no heat no ignition(well poor ignition any way).

I miss my truck!!! But I love this

http://www.youtube.com/user/sgtdlesa...?feature=watch


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post #5 of 16 Old 12-20-2006, 05:31 AM
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sounds like the exhaust back presuure valve coming on to me.

99.5 F-250 PSD AT 4x4, 4in lift, 37 13.5 18 Pro comp Extreme A/T's, S&B Intake, GTP38R, DP Tuner custom programs (140 Agg., 120 sled pull, 80 tow and 60 tow), Rosewood DIY stage 2 injectors, BTS Trans, 5in exhaust no muffler, 6 oh intercooler, Ford AIC, EBPV delete, Foil delete, T/C lock up mod, Pusher Fuel Pump, Three Chime train Horns

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post #6 of 16 Old 12-20-2006, 07:55 AM
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Yea that comes on when cruzing but shuts off with any throttle imput

I miss my truck!!! But I love this

http://www.youtube.com/user/sgtdlesa...?feature=watch


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post #7 of 16 Old 12-20-2006, 02:33 PM
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Quote:
Originally Posted by iblue250 View Post
It seems if I'm driving down the road with my foot held steady on the throttle the engine will haul down for about 5 seconds and then it regains its power. At the same it hauls down the heater sounds like it is getting a boost of air.
like i said sounds like ebpv

99.5 F-250 PSD AT 4x4, 4in lift, 37 13.5 18 Pro comp Extreme A/T's, S&B Intake, GTP38R, DP Tuner custom programs (140 Agg., 120 sled pull, 80 tow and 60 tow), Rosewood DIY stage 2 injectors, BTS Trans, 5in exhaust no muffler, 6 oh intercooler, Ford AIC, EBPV delete, Foil delete, T/C lock up mod, Pusher Fuel Pump, Three Chime train Horns

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post #8 of 16 Old 12-20-2006, 10:17 PM
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Sorry it was a long day.

I miss my truck!!! But I love this

http://www.youtube.com/user/sgtdlesa...?feature=watch


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post #9 of 16 Old 01-13-2007, 10:36 PM
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Real quick guys.... I have the same sound ( the back pressure sound) when I keep a steady foot, and goes away when I put my foot into it. I understand it could be the ebpv but I never heard it before. Is it normal? Is there a way to fix it if not?? Thankx
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post #10 of 16 Old 01-14-2007, 12:45 AM
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totally normal on both counts.

June of 1999 7.3L F-250 CCSB
Dp-Tuner F5 w/8 Tunes. Autometer Colbalt Gauges. 5" Exhaust. 2004 6.0 SCT and Headstuds 4" exhaust
2008 6.4L project truck.
[/COLOR]



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