96 Powerstroke loses power. - Ford Powerstroke Diesel Forum
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post #1 of 7 Old 08-02-2012, 06:11 PM Thread Starter
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96 Powerstroke loses power.

Hi everyone. I have a 1996 f250 4x4 auto powerstroke. Been having a problem with the truck for the last two months or so.

When I go start the truck in the morning, after my shift at work or anytime it sits for more then a few hours, it starts, runs well for a min or two then while driving loses all power, throttle stops working, smokes blue smoke out of the exhaust and wont shift properly.

Usually I just give it more throttle and eventually it "catches" and gains speed and power back, but runs rough until the truck is warm.

The couple times its died on me during this, it has been hard to start but once started as long as i idle with throttle applied for 5-10 mins it works ok. If i try and let it idle under its own power it dies out.

I replaced the fuel filter a month ago and it worked better for a week, but then the same issues came back, and have slowly been getting worse and worse. Ive been running some Diesel Kleen through it in case it was bad fuel or dirty injectors.

I dont really wanna just throw money at it until i find out what the problem is. Anyone have any ideas? Bad injector? Fuel pump packing it in? Any help is appreciated. thanks!

1996 F250 XLT
Build date 09/95

Regular Cab Automatic 4x4
Fey, Rear 10,000lb Stainless Bumper
S&B Intake
4inch Custom Exhaust with MBRP Downpipe and Muffler.
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post #2 of 7 Old 08-03-2012, 09:09 AM
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Do you have duel tanks, does it do the same thing in both settings? When you swapped the filter did you clean the FPR screen? Unplug the connector to the EBPV and go for a drive.

+ Matt - Star Tiger +
-Bean's: 160/100 (FF Injectors), 2/ 6-POS chips (TW & Beans tunes), Overboost controller, E-Fuel
-BANKs: downpipe, full exhaust, gauges, test pipes, intercooler
-Irate: T-4 kit, IC pipes, 3" Replacement Plenums, BASB Turbo
-Mag-Hytec trans. and pumpkin covers
-6637, CCV, IDM, 6.0 Fan, 49-Federal PCM swap, MAP line Mod
-370 Amp alt., 40k trans cooler, SRP1.1
-twin on-board air w/ 10 gal. tank

Re-pinning '97 Cali PCM to Federal
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post #3 of 7 Old 08-03-2012, 12:53 PM Thread Starter
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It did have duel tanks, but the back one was removed years ago due to it being rotted out. Did not clean the FPR screen when I changed the filter. But did clean the Screen last year at one point while addressing a fuel leak in the valley.

Whereabouts is the EBPV connector located? and whats it look like? I could try that out.

1996 F250 XLT
Build date 09/95

Regular Cab Automatic 4x4
Fey, Rear 10,000lb Stainless Bumper
S&B Intake
4inch Custom Exhaust with MBRP Downpipe and Muffler.
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post #4 of 7 Old 08-03-2012, 12:56 PM
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There is a two wire connector right under the turbo (intake side / drivers side)

+ Matt - Star Tiger +
-Bean's: 160/100 (FF Injectors), 2/ 6-POS chips (TW & Beans tunes), Overboost controller, E-Fuel
-BANKs: downpipe, full exhaust, gauges, test pipes, intercooler
-Irate: T-4 kit, IC pipes, 3" Replacement Plenums, BASB Turbo
-Mag-Hytec trans. and pumpkin covers
-6637, CCV, IDM, 6.0 Fan, 49-Federal PCM swap, MAP line Mod
-370 Amp alt., 40k trans cooler, SRP1.1
-twin on-board air w/ 10 gal. tank

Re-pinning '97 Cali PCM to Federal
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post #5 of 7 Old 08-03-2012, 01:14 PM
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Also make sure the valve is open. Other side of the turbo (turbine side). Feel under the output side between the turbine and downpipe. You'll feel/see an actuator rod. Disconnect the rod from the valve and wire the valve open.

+ Matt - Star Tiger +
-Bean's: 160/100 (FF Injectors), 2/ 6-POS chips (TW & Beans tunes), Overboost controller, E-Fuel
-BANKs: downpipe, full exhaust, gauges, test pipes, intercooler
-Irate: T-4 kit, IC pipes, 3" Replacement Plenums, BASB Turbo
-Mag-Hytec trans. and pumpkin covers
-6637, CCV, IDM, 6.0 Fan, 49-Federal PCM swap, MAP line Mod
-370 Amp alt., 40k trans cooler, SRP1.1
-twin on-board air w/ 10 gal. tank

Re-pinning '97 Cali PCM to Federal
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post #6 of 7 Old 08-03-2012, 01:34 PM Thread Starter
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just to inquire a little more, what does unplugging that do?

1996 F250 XLT
Build date 09/95

Regular Cab Automatic 4x4
Fey, Rear 10,000lb Stainless Bumper
S&B Intake
4inch Custom Exhaust with MBRP Downpipe and Muffler.
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post #7 of 7 Old 08-03-2012, 01:58 PM
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Just a check right now. One wire supplies pos. and the other is a switched neg. When working correctly on a cold start the PCM will close the valve to create back pressure in the exhaust to quickly warm up the engine. A short in that system could cause the valve to close when it's not supposed to or a bad actuator would hold it closed after warm-up. With it closed the valve is keeping the exhaust from flowing freely and killing your power.

That is IF this is the current problem.

+ Matt - Star Tiger +
-Bean's: 160/100 (FF Injectors), 2/ 6-POS chips (TW & Beans tunes), Overboost controller, E-Fuel
-BANKs: downpipe, full exhaust, gauges, test pipes, intercooler
-Irate: T-4 kit, IC pipes, 3" Replacement Plenums, BASB Turbo
-Mag-Hytec trans. and pumpkin covers
-6637, CCV, IDM, 6.0 Fan, 49-Federal PCM swap, MAP line Mod
-370 Amp alt., 40k trans cooler, SRP1.1
-twin on-board air w/ 10 gal. tank

Re-pinning '97 Cali PCM to Federal
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