Join Date: Jul 2012
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On again off again starting problems
Hey guys, 2006 f350 here with occasional problems. Starting cold the crank time has been getting up into the 5 second range, hot starting has always been instant.
A few days ago I drove it 30 miles or so, shut it down with the turbo timer, came back out 20 minutes later and it started up instantly, drove another 10 miles, shut it down with timer, came out an hour later and no start, cranked like crazy and after a 20 second crank it fired.
Same thing last night, except it didn't fire at all, looking at a tow home I dug through my tool box and found a fresh quart of rotella t 15/40 so figured WTH, the oil level was full but I added the fresh quart out of desperation. Truck fired within 5 seconds after adding the quart.
The idiot gauge shows zero oil pressure the entire time the motor cranks, be it a short or longgggg crank till start. As soon as the gauge shows pressure the trucks starts instantly. Blows no smoke while cranking, oem filter and cap, dipstick says full, oil changed by ford before I bought it a few months and 2500 miles ago. Runs like a dream.... Any ideas? I know the hpop snap on fitting causes a lot of these issues, but the low pressure seems to be the issue, as soon as it shows pressure the hpop fires within a second.