motor problems... think the shop is screwing me HELP! - Ford Powerstroke Diesel Forum
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post #1 of 9 Old 05-22-2013, 09:52 PM Thread Starter Rookie
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motor problems... think the shop is screwing me HELP!

I am brand new to the diesel world... Need more power than gas ect ect ect.
I have a friend who is selling me his 01 powerstroke 7.3 with 165k on it. He told me it starting blowing some faint white smoke a few years ago... In the past 2 years he has put less than 3,000 miles on it so he never really worried much about it. I took the truck for a few days to test drive it and see how I liked it and this is what I found.
The truck started fine and ran fine for the first day... I never really got on it but when I did it seemed a little sluggish (F-350 4 door cab long box). The next morning I fired it up... drove 100 yards and it sputtered and died... It took a little cranking to get it to start but I did and it ran fine for the rest of the day. I did notice some smoke blowing out seemed white with some blue mixed in. The next morning I let it sit and idle for about 15 minutes.. this was in 65 degree weather... drove it 100 yards and it died again.. same thing took some cranking and it eventually kicked on... That night I took it out fishing got up to about 50 mph and it started misfiring like crazy... it stopped after about 1 mile and I made it home.. the next morning I was driving it to the shop to get it looked at... drove 100 yards and it died.. took more cranking then usual but it started.... drove 300 yards than died again... I turned around went back to the house called my buddy and we towed it. I had to add oil the 2nd or 3rd morning and the oil seemed to be pretty warm... as in a lot of vapor coming from the add oil opening... no milky substance that would suggest a cracked head.... Now as of today the shop has done a compression test and says everything is normal so we know the rings are not blown... They have narrowed the problem down to the number 7 cylinder and says oil is pouring into the cylinder... they have pulled the injector to test it and the injector tests out fine... My questions are. first off if it had a blown head how could it pass a compression test... 2nd why did I not find any milky substance under the add oil cap... 3rd... should I tell the shop to quit working on it and we are going to take it somewhere else... and lastly... what in the world do you guys think is wrong with this truck? Thanks for your time.
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post #2 of 9 Old 05-23-2013, 09:30 AM
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sounds like your cps sensor needs to be replaced, that would fix your truck stalling out after hundred yards.

Maybe change all the fluids, and filters, put some fuel additive in it and see how that goes from there, thats where i woudl start anyways

01 F350 CCSB
a few mods

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post #3 of 9 Old 05-23-2013, 10:44 AM
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Any codes?

2001 - 14" OUO 525 - 38x15.5x20 Toyo & 20x12 Weld Cheyenne's. Hybrids, 38R, BTS, Spearco, Terminators..

Quote of the Day:
Originally Posted by Mannysouza View Post
You will get some axle wrap with a heavy trailer, I can feel it when towing my gooseneck with some heavy equipment. My Deavers will wrap enough to make the tires rub the front of the rear fender well if I give it too much throttle on aceleration.
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post #4 of 9 Old 05-23-2013, 11:36 AM Thread Starter Rookie
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17 codes came up on the scanner... most of them were voltage codes because a battery was not holding a charge.. I do not know what the others were for. I am assuming a code came up that said number 7 was misfiring.. but how could it pass a compression test if it has a bad head?
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post #5 of 9 Old 05-23-2013, 11:48 AM
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Check the in tank pickup if its misfiring and shaking could be a clogged pickup system the pickup in the tank has some really fine mesh tubes and after a while they will clog up and cause these exact issues reasearch hutch mod on guzzels web page not saying this is it but my truck had the same issues when I bought it

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2000 f-350 4x4 extended cab, went from a flatbed work truck to what you see now, all done by me. Early 99 engine, billet low stall converter, rebuilt trans, all new uvch, new belt tensioners and idler pulley, rebuilt injectors, all new icp, idm, cps, hutch mod, k&n intake, white valve covers, wicked wheel, 5 inch exhaust, php hydra chip 15pos, 8" superlift, 20 inch black and machined rims, 2" billet spacers, 37/13.50r20 toyo open country tires, rough country dual stabilizer, 05 front end with 10k hid lights, amber led cab lights, 09 ford van bucket seats, 2010 f150 center console, b&m ratchet shifter, aero force scan gauge, b&m trans cooler used as a fuel cooler,
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post #6 of 9 Old 05-23-2013, 01:09 PM
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low voltage can do really funny things to these trucks from my experience. start with testing/replacing the batteries/alt. then flash your codes. run it. pull any new codes.
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post #7 of 9 Old 05-27-2013, 05:50 PM
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FIRST ensure you have two fully charged batteries. I've seen poor batteries cause all kinds of ghost issues.
Disconnect them and fully charge them on a good/ smart charger.

Second change the fuel filter and oil and oil filter.

Go ahead and swap a new Cps in there it's cheap and easy. Ford dealer like $25 ish. Get a spare for the glove box.

Scan gauge or autoenginuity helps trouble shooting. The ability to scan and clear codes and monitor sensors helps trouble shooting.

Fuel pressure gauge lets you trouble shoot better.

Good luck, all your investments in trouble shooting pay off real quick when you start fixing stuff yourself.

01 F-350 reg cab srw 7.3
Important stuff:
Beans stage 1 injectors, Beans 6 position chip
Dieselsite ww2, boost fooler, wastegate controller
gauges, upgraded up pipes,
afe intake, 4" flow through muf w/turn out
BTS transmission, 6.0 cuuuler
35"toyo mt on 18" black kmc addicts

06 F-350 cc srw 6.0 lariat
build being planned...starting with the cab off
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post #8 of 9 Old 06-09-2013, 05:56 PM Fanatic
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Just curious, how did they narrow it down to the number 7 cylinder? What made them think that? How much oil did you have to add to get it back into the service range? When they pulled the injector oil would have rushed into the cylinder becuase these engines have a heui (hydraulic electronic unit injection) injection system. Is this a diesel shop? Have they worked on many 7.3 or 6.0 Powerstrokes as they both use heui injection systems. if you want to email me feel free I will be glad to try and help you out. I am not on here as much as I used to be.


99.5 F-250 4x4, 7.3 PS
State 1 injectors from Rosewood, GT38 (van) turbo, S&B intake, Comp Cam's 910 valve springs, Smith Brothers pushrods, AIH delete TS 6-position chip. Pyro.

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Future Mods:
Edge CTS monitor, and 4" Exhaust (Manufacturer to be determined).
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post #9 of 9 Old 06-10-2013, 10:25 AM
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you remove an injector, of course the cylinder will fill with oil..

All replies are great...low volts, intake mod (hutch mod), cps...Remove the ICP plug (d/s head up front), and see if oils' present in the sensor/plug. If so, need to replace it.

99.5 x-cab 7.3l, 6spd, 161k miles.....
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