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post #1 of 37 Old 06-25-2012, 08:03 AM Thread Starter
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Exclamation 1996 help with loss of power

Well boy's im in need of some help again.My truck has been (running off) kinda stumbling when i am driving. Got a buzz test done and good news is all past the test. Did the cylinder contribution test and not good news. Cyliners 3,4,and 7 are not helping the motor run (failed the test). The truck has 360,ooo mi on her but does not burn oil and does not smoke out tail pipe. Any help? I hope it is not rings,could the injectors be bad but pass the buzz test?

Thank you

96 F-250 ext. cab 8ft box,3in.down,5in.back, nocat,superchips, 2003 SuperDuty 1 Ton axle swap.
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post #2 of 37 Old 06-25-2012, 10:28 AM
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All on the same side and next to each other huh? Check the pigtail going to the that side of the head looking for damage/melting.

+ 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 37 Old 06-25-2012, 10:48 AM
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Quote:
Originally Posted by BigFuel View Post
All on the same side and next to each other huh? Check the pigtail going to the that side of the head looking for damage/melting.
No, they're not. 4 is on the other side. They're all three on separate UVCHs.
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post #4 of 37 Old 06-25-2012, 10:55 AM
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DOH! My dyslexia fouled my hypothesis.

+ 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 37 Old 06-25-2012, 11:36 AM Thread Starter
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There is also a code p0113 =air intake temp sensor and PO 3444= CPS the cps in the truck now is the gray one is the grey one a bad one for my year? i have herd all kind of stuff about CPS's dont know what to do blue, black, or grey.

96 F-250 ext. cab 8ft box,3in.down,5in.back, nocat,superchips, 2003 SuperDuty 1 Ton axle swap.
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post #6 of 37 Old 06-25-2012, 12:04 PM
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Is the Air intake sensor clean and not hidden or buried away under something?

Buzz test just sees IF the injectors pulse, CC Test tests the quality of the injector's pulse (I.E. the injector opens but only moves half the volume of fuel resulting in a less then balanced total injection pulse that includes all the cylinders or simply rough idle/cruising/accel). With the engine running do the "oil cap test".

CPS: dark blue original Ford (had issues), replaced by light blue or grey (still had issues but Ford concidered it "within spec"), black is the one from International not Ford (IMO the best there is). I buy International parts before Ford parts.

+ 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

Last edited by BigFuel; 06-25-2012 at 12:46 PM.
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post #7 of 37 Old 06-25-2012, 12:40 PM Thread Starter
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Thank u. Big fuel ......"oil cap test "is to test blow by correct. If so all good on that half with cap off there is some blow by but cap upside down over hole it does not blow cap off.

96 F-250 ext. cab 8ft box,3in.down,5in.back, nocat,superchips, 2003 SuperDuty 1 Ton axle swap.
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post #8 of 37 Old 06-25-2012, 12:52 PM
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Right, if the cap stays on then there is not likely sufficient blow-by on three cylinders and it's the flow of the questionable injectors at stake. When was the last fuel filter change? What does the fuel filter look like? Clean and white? Run a fuel stabilizer/cleaner through the system for a couple weeks and retest.

+ 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 #9 of 37 Old 06-26-2012, 08:21 AM Thread Starter
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i just did fuel filter change about 1,000 mi agao the old one looked good. i change fuel filter every oil change about every 4,000mi. i also run PS (power service?) fuel stabilizer with every fill up

96 F-250 ext. cab 8ft box,3in.down,5in.back, nocat,superchips, 2003 SuperDuty 1 Ton axle swap.
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post #10 of 37 Old 06-26-2012, 08:25 AM Thread Starter
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YOu migh be on to something tho i have never used the rear tank (has hole in it). But the other week i did by accident flip to the rear tank for a very quick sec. when trying to turn off the headlights and i hit the switch. I bet i put all kind of trash in to the fuel system.

96 F-250 ext. cab 8ft box,3in.down,5in.back, nocat,superchips, 2003 SuperDuty 1 Ton axle swap.
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