a cam sensor you think? - Diesel Forum - TheDieselStop.com
Power Strokes 1994-1997 General Technical discussion of topics related to vehicles powered by the Power Stroke engine in 1994 through 1997 models.

 
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post #1 of 4 (permalink) Old 03-03-2009, 11:24 PM Thread Starter
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a cam sensor you think?

so yesterday morning i was sitting at a stop like and my truck quit just like i turned the key off. i tried cranking it but it would not restart. the temperature was in the single digits so i added some diesel 911 to my fuel filter with no change. tried starting fluid ( with glow plugs turned off ) that was no help. after all this cranking i checked my high pressure oil reservoir and found it low so i refilled it but still would not start. got it towed to our shop and hooked up a gauge to the high pressure oil rail and that was reading fine. hooked up a fuel gauge and at first it read kinda low but as i cranked it more it gradually came up to about 60 or 70 psi. then i noticed smoke coming out the tail pipe so i turned my glow plugs back on and then it fired right up and have not had a problem since. i kinda wanna think that maybe my cam sensor was acting up but not real sure. i changed it out today and drove a short distance with no problems. not the first time this year it's been that cold and never had a problem with fuel yet. last time my cam sensor went bad was a couple years ago but it acted the same way in that went to start my truck and it wouldn't fire, it finally did and then shut-off again after driving about 10 foot or so. did this two or three times till i finally got it driven into shop. replaced it and didn't have a problem for three or four years till yesterday. both yesterday and the previous time i had a tachometer reading while cranking with no start. thank-you in advance for any help.

'94 F250xlt ext. cab. ZF5-speed 4x4. EBPV delete. DPP downpipe. Tymar intake. Tymar coolant filter. Type 31 batteries. LF9691 primary filter. Electric fans. 10k mod. 1.0 turbo housing. Boost blanket. Over-axle exhaust eliminated. Electric fuel pressure gauge. Heim joint clutch linkage. Adrenaline HPOP. BDP modded IDM. LUK SMFW. DIY Elec Fuel. FS1282, FF5320 fuel filters. SD starter. DP 80hp tuned PCM.
'04 F550XL reg. cab. ZF-6 speed. EGR delete. Coolant filter. Cat EC-1 coolant. LF777 bypass oil filter. Blue-spring fuel pressure regulator. ScanGauge II. Glowshift fuel pressure gauge.
'06 F350 xlt crew cab. 5R110 auto trans. 4x4. EGR Delete. DIY Coolant filter. Cat EC-1 coolant. Blue spring fuel pressure regulator. Open CCV. SCT X4 Gearhead Tunes. Dual SPA fuel/oil pressure gaugeWicked Wheel 2.
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post #2 of 4 (permalink) Old 03-04-2009, 05:26 AM
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Could be the cam sensor wiring harness. Check it for breaks in wire and corrosion on terminal. These sensors can go bad right outta the blue so it could be the (new sensor) bad.

97 F250 Ext Cab E4OD,245K Miles.Mods.10K,Shimmed Fuel Pressure,6637 Air Filter,140Volt IDM, 3" DownPipe.
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post #3 of 4 (permalink) Old 03-04-2009, 01:01 PM Thread Starter
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i inspected the wiring briefly along with the terminal ends and it all seemed ok. been driving it around most of today and haven't had any problems yet. thanks.

'94 F250xlt ext. cab. ZF5-speed 4x4. EBPV delete. DPP downpipe. Tymar intake. Tymar coolant filter. Type 31 batteries. LF9691 primary filter. Electric fans. 10k mod. 1.0 turbo housing. Boost blanket. Over-axle exhaust eliminated. Electric fuel pressure gauge. Heim joint clutch linkage. Adrenaline HPOP. BDP modded IDM. LUK SMFW. DIY Elec Fuel. FS1282, FF5320 fuel filters. SD starter. DP 80hp tuned PCM.
'04 F550XL reg. cab. ZF-6 speed. EGR delete. Coolant filter. Cat EC-1 coolant. LF777 bypass oil filter. Blue-spring fuel pressure regulator. ScanGauge II. Glowshift fuel pressure gauge.
'06 F350 xlt crew cab. 5R110 auto trans. 4x4. EGR Delete. DIY Coolant filter. Cat EC-1 coolant. Blue spring fuel pressure regulator. Open CCV. SCT X4 Gearhead Tunes. Dual SPA fuel/oil pressure gaugeWicked Wheel 2.
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post #4 of 4 (permalink) Old 03-04-2009, 08:53 PM
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Cam sensor.
Same happened to me a couple times last summer. Stopped right when I was crossing a street. Luckily, it started right up.
It stopped a couple times like that, intermittently. Thought it could be the filter plugging up from running bad biodiesel. Not to be. Replaced thge cam sensor (10 minutes) and all has been good since.

---------------------------------------------------
* 96 F250 PSD, CC, SB, 2wd, auto, 3:55s
* 280,000 miles
* Tymar Performance intake
* 10K mod
* FPR shim
* DIY Exhaust Brake
* 3" downpipe
* Rotella Synthetic Engine Oil
* B100 all the way!
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