1999 F250 turbo problem - Ford Powerstroke Diesel Forum
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post #1 of 13 Old 01-27-2008, 07:03 PM Thread Starter
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1999 F250 turbo problem

when i start my truck and after it idles for a little bit it almost sounds like the waste gate sticks open or something. the exause gets louder. when i drive it down the road, and barely hit the gas, it will do it too and it seems like it has less power. then after i hit the gas a little harder it clears up. could this b a boost pressure problem. any suggestions on what the problem might b
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post #2 of 13 Old 01-27-2008, 07:05 PM
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that just sounds like your exhaust back pressure valve, it just restricts the exhaust to warm up the engine faster

do u have aftermarket exhaust on it, it is much more noticable when you dont have a muffler

15 F350 RC 4x4
14 F550 CC 4x4
05 2500HD CCSB 4x4 Duramax
02 F250 CCSB 4x4 ZF6 Swap
- aFe Stage II, 4" TB Exhaust, P.I.S. 160cc/30%, GTP38R, T500, DP-Tuned
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02 F250 CCLB 4x4 (Parting Out)
02 F250 SCSB 4x4
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01 F250 SCLB 4x4
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post #3 of 13 Old 01-27-2008, 07:13 PM Thread Starter
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i bought the truck as it sits. 10in lift, 40in tires and a chip. not sure what brand on the chip. i think it might be a superchip. just straight pipe about half way back on the truck. no muffler. my concern was it used to do it when it was cold and when i just started it up. now it does it when i am going down the road after it is warm.
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post #4 of 13 Old 01-29-2008, 02:58 PM Thread Starter
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any other suggestions?
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post #5 of 13 Old 01-29-2008, 03:07 PM
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Its the exhaust back preasure valve. unplug it. Its a 2 wire plugin on the underside of your turbo compressor housing. mines been disconected for over a year now. I hated that annoying thing.

its for emisions and engine temps so on and so forth... all it really does iss kill your milage and performance and annoys the pizz out of you.



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post #6 of 13 Old 01-29-2008, 04:13 PM
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yep u can wire it up as somewhat of an exhaust brake tho but i would just disconnect it to start with

15 F350 RC 4x4
14 F550 CC 4x4
05 2500HD CCSB 4x4 Duramax
02 F250 CCSB 4x4 ZF6 Swap
- aFe Stage II, 4" TB Exhaust, P.I.S. 160cc/30%, GTP38R, T500, DP-Tuned
- ITP Overboost Annihilator, Regulated Return
02 F250 CCLB 4x4 (Parting Out)
02 F250 SCSB 4x4
- Ford AIS Intake, 4" TB Exhaust
- ITP Overboost Annihilator, DP-Tuned
01 F250 SCLB 4x4
- DIY Intake 4" TB Exhaust
99 F550 RC 2x4 ZF6
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post #7 of 13 Old 01-29-2008, 09:49 PM Thread Starter
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thanks for the input. i greatly appericiate it.
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post #8 of 13 Old 01-31-2008, 08:09 PM
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how do i wire it as an exhaust brake? is it a great increase in mileage and performance if i unplug it? does it cause any problems if i rewire it or unhook it?
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post #9 of 13 Old 01-31-2008, 08:31 PM
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yeah its mid winter and I am soooooooooooooooo Fin sick of the hiss!!!!! I pulled off the road one day in a fit of rage to pull it out, lol but my girlfriend conviced me to keep driving! I am thinking of pulling the wires soon


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On vacation from a truck for a year or...
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Looking at 6.4s Moving in a few months then hopefully buying my dream truck!!!
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post #10 of 13 Old 02-01-2008, 12:28 AM
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Quote:
Originally Posted by craig long View Post
how do i wire it as an exhaust brake? is it a great increase in mileage and performance if i unplug it? does it cause any problems if i rewire it or unhook it?
theres a good writeup with wiring diagrams somewhere i just can't remember where, maybe someone else can chime in

15 F350 RC 4x4
14 F550 CC 4x4
05 2500HD CCSB 4x4 Duramax
02 F250 CCSB 4x4 ZF6 Swap
- aFe Stage II, 4" TB Exhaust, P.I.S. 160cc/30%, GTP38R, T500, DP-Tuned
- ITP Overboost Annihilator, Regulated Return
02 F250 CCLB 4x4 (Parting Out)
02 F250 SCSB 4x4
- Ford AIS Intake, 4" TB Exhaust
- ITP Overboost Annihilator, DP-Tuned
01 F250 SCLB 4x4
- DIY Intake 4" TB Exhaust
99 F550 RC 2x4 ZF6
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