My 04 f350 6.0 wont start when motor is cold. If I plug block heater up it starts fine. All 8 glow plugs are brand new and all 8 wires are getting 12 volts. Any ideas??????

5

Asked by Dec 03, 2014 at 12:35 PM about the Ford F-350 Super Duty

Question type: Maintenance & Repair

This all started with an oil change. Truck was fine before that. Since then, I've replaced rail pump, batteries, all 8 glow plugs, both fuel filters and oil filter, CSPS, ICP valve, fuel system relay, and put an O-ring kit on the injector closest to the bumper on driver side because when I pulled that glow plug it was very wet with oil. I checked EGR valve (looks good) I've cleaned all my grounds to ensure a good connection. The fuel tank is around 3/4 tank. My battery light has been flashing on and off as well. This is a new development but the starter still turns over strong. If the truck is warm or the block heater is plugged up it starts and runs great imediately but if its not plugged up and the motor itself has cooled down it is very hard to start and when it does I have to hold the accelorator to keep it running till it warms up and smooths out. This takes about 45 seconds then the truck runs like there's nothing wrong with it at all.

3 Answers

10

i just had close to the same problems with my 05 6.0 f350 and it turned out to be a broken cam sensor

1 of 1 people found this helpful.

Try cycling thru the glow plugs twice in a row, then try to start it. Sometimes this helps....

425

it does sound like your problem is with the glow plugs,did you replace the module control for the glow plugs,a little hint when this happens again while your crancking and it is hard to start,touch each exh.port on all 8 cly.right at the area exh manifolds,a infared temp tool is awesome for this,you can also point it on the intake manifold see if glow plugs are even coming on,but back to exh.if 1or2 of the ports feels cold and the others are warm,than thats the cly.that needs concentration.GOOD LUCK!

Your Answer

F-350 Super Duty

Looking for a Used F-350 Super Duty in your area?

CarGurus has 27,164 nationwide F-350 Super Duty listings starting at $3,900.

ZIP:

Ford F-350 Super Duty Experts

  • #1
    Bigbob Reece
    Reputation
    2,950
  • #2
    tikun
    Reputation
    1,590
  • #3
    JoeAndJoe
    Reputation
    1,360
View All

Related Models For Sale

Used Ford F-250 Super Duty
442 Great Deals out of 47,648 listings starting at $695
Used Ford F-450 Super Duty
48 Great Deals out of 2,426 listings starting at $9,500
Used Ford F-150
3,046 Great Deals out of 230,458 listings starting at $1,300
Used Dodge Ram 3500
83 Great Deals out of 2,292 listings starting at $5,950
Used Chevrolet Silverado 2500HD
440 Great Deals out of 31,396 listings starting at $2,500
Used Chevrolet Silverado 3500HD
115 Great Deals out of 11,390 listings starting at $8,362
Used Ram 3500
164 Great Deals out of 15,885 listings starting at $12,995
Used GMC Sierra 3500HD
83 Great Deals out of 4,910 listings starting at $8,000
Used Ford F-350
274 listings starting at $2,900
Used Dodge Ram 2500
148 Great Deals out of 5,435 listings starting at $1,995
Used GMC Sierra 2500HD
114 Great Deals out of 14,816 listings starting at $3,259
Used Ram 2500
199 Great Deals out of 30,155 listings starting at $6,995
Used Chevrolet Silverado 3500
16 Great Deals out of 519 listings starting at $5,711
Used Chevrolet Silverado 1500
2,684 Great Deals out of 157,095 listings starting at $1,000
Used Ford F-250
427 listings starting at $2,500

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.