Cam sensor problems - Diesel Forum - TheDieselStop.com
'99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the '99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

 
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post #1 of 8 (permalink) Old 02-24-2010, 11:44 PM Thread Starter
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Cam sensor problems

I'm new to the forum, so I hope somebody can help. I have a 99 dually, 7.3l, brute force intake, and a 4" exhaust. Sometimes I chips it with an Edge Evolution. So my problem is ever since the recall for the cam sensors I've had to change mine three more times. The truck just won't start. I get the cam sensors from the Ford dealer. There's no check engine light coming on. So any suggestions would be great. Also the sensors seem to last about 3 months then start acting up..Thanks
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post #2 of 8 (permalink) Old 02-25-2010, 12:06 AM
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Are you getting any codes for the CPS or just trying that as a shot in the dark? If you've got CPS codes, it's time to check the CPS connector and wiring.

Chris
2002 F350 6-speed 444 CID. XLT, Heated Seat, 500,000 & counting.

“Good judgment comes from experience, and a lot of that comes from bad judgment.” Will Rogers
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post #3 of 8 (permalink) Old 02-25-2010, 07:10 PM Thread Starter
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I haven't check in a while for codes. Occasional the truck won't start and when driving just above idle, like through a 25 mph zone, truck starts to buck alittle. some time it sounds like it might have a slight miss. If i change the sensor then its fine for awhile. I'll double check for codes. Thanks
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post #4 of 8 (permalink) Old 02-27-2010, 03:26 PM
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I'd wonder about the IPS & IPR sensor.

cadd

1999.5 F350 4X4 CC 7.3 LWB 2" SuperLift, Hypertech, AIS, Gooseneck Hitch, Zoodad, South Texas Outfitters Bumpers, Autoenginuity

2002 F250 2X4 CC SWB (Wife's) Stock except for AIS filter and Gooseneck Hitch
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post #5 of 8 (permalink) Old 03-02-2010, 10:34 PM Thread Starter
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this might be a stupid question but what is the ips and ipr sensor
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post #6 of 8 (permalink) Old 03-02-2010, 10:40 PM
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IPR is Injection Pressure Regulator
ICP - Injection Control Pressure Sensor (IPS should have been ICP) my bad...

Here's a link with more info
Engine Stops for no apparent reason?

If you do a search you'll find a lot of info.

cadd

1999.5 F350 4X4 CC 7.3 LWB 2" SuperLift, Hypertech, AIS, Gooseneck Hitch, Zoodad, South Texas Outfitters Bumpers, Autoenginuity

2002 F250 2X4 CC SWB (Wife's) Stock except for AIS filter and Gooseneck Hitch
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post #7 of 8 (permalink) Old 03-03-2010, 05:47 PM
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big issue for me was the addition of supplemental biodiesel by the fuel shops around mid-mo, is now a state required for 5-10% blends; I was seeing some spots on the drive and smell of fuel ever so often during driving, found my FF bleed or drain valve assembly leaking. Was OEM, had black I presume silicone rubber o-rings, some form of synthetic but not compatible with the fuel, they had swollen and the unit leaking in and out. Fuel was draining off at night and leaking during day, some hard starts and always a slight miss until well warmed up. Swapped it out and the problem stopped, new o-rings were yellow.
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post #8 of 8 (permalink) Old 03-03-2010, 09:32 PM
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With your 99, does your tach needle move, on a long extended crank, when it doesn't start? If the tach needle doesn't move, its the CPS. 99 thru 01 trucks have their tachs wired through the CPS circuit. If the needle bounces, then probably not the CPS, causing the no start.

"White Moose", 2001 F-250,XLT,Auto, Super Cab, 4x4. Early PSD, build date: Aug. 16, 2000, no PMR. AIS, AIH delete, Zoodad, CCV mod. (not any more), BTM, GOS headlite harness upgrade, harpooned fuel tank, B&W gooseneck hitch, Firestone air bags. 6.0 Tranny cooler, pillar mount, with Isspro pyro, boost, and tranny temp. Trailer Towing Mirrors, Bilstein Shocks, 03 Clear Headlights, HP Crossover line, DP Tuner F-5 switch: High Idle, 20 hp. tow, 40 hp. tow, 80 hp. tow, 80 hp. econ. drive thru. 200,000+ miles and still running strong. No mech. diode tranny. Changed to the 2002 model ,before it left the dealership. 25 ft. 24k Horse Creek, flat bed gooseneck.
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