99.5 F250 PSD no start - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 03-30-2013, 06:45 AM Thread Starter
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99.5 F250 PSD no start

Recently bought a 99.5 PSD knowing it had some issues.
Previous owner said will not start cold so I figure GP's so I put some motorcrafts in and same story no start.
Acts as if low batterys but I took the starter,positve battery cable, and batterys out od my other psd and with a another diesel charging the system it still acts like not enough voltage. voltage is 12.88v and drops to 6.5 to 7.5 while cranking????? It will crank hard and fast for 2 sec then dies off. HPOP resovoir is full(when I checked their was some air escaping) fuel pump seems to work but I haven't had a guage on the bowl yet. The only codes I am getting is P0603,P0475 I am thinking of buying an AE scanner but was unsure if you could buzz test with the AE. any help would be appreciated.
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post #2 of 4 Old 03-30-2013, 07:46 AM
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you need new batteries. Truck needs, i believe 10.5v to fire off.

99.5 x-cab 7.3l, 6spd, 161k miles.....
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post #3 of 4 Old 03-30-2013, 08:41 AM
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You need Way more than 7.5 anyway... But, have the batteries Load Tested, individually at a High Rate, after fully recharging them (best to just take them out, then you can clean all the cable ends) first before you spend the money.

I think the threshold on the older trucks (pre '01 or '02) was around 10v, newer was lowered to 8.5v but this was just PCM programming so, I think any of them could have been changed. It was an Actual requirement for the PCM to enable the Start though.

The AE will certainly do a Buzz Test, and Much more when you need it to! A wise investment for anybody who's going to maintain their own PS at @$350 w/Enhanced Ford Pkg.
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post #4 of 4 Old 03-30-2013, 05:26 PM Thread Starter
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well, I went ahead and bought some interstates for it put 'em in and it fires! runs but poorly shakes real bad so I let it warm up to operating temp and shut her down. I change the oil and fire it back on runs and idles very snooth with no SES light but has a greyish blue haze all the time definately not as bad once warm. could it be the injector o rings or what. while installing the glow plugs i noticed the IPR pig tail was melted together and the plug was jacked up also. I fixed as best I could til new one gets here. could that be the issue? or would I get a code? Is it buzz test time?
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