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 bluehd1200 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.

5 Answers

30

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

3 people found this helpful.
30

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

3 people found this helpful.
1,095

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!

4 people found this helpful.
10

bluehd1200 what was the problem with it? Mines doing same thing.

1 people found this helpful.

Your Answer:

F-350 Super Duty

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

CarGurus has 27,833 nationwide F-350 Super Duty listings starting at $3,995.

ZIP:

Own this car?

Share your experience with others.

CarGurus Experts

  • #1
    Bigbob Reece
    Reputation
    5,260
  • #2
    tikun
    Reputation
    3,430
  • #3
    JoeAndJoe
    Reputation
    2,830
View All

Know more, shop wisely

Search

Related Models For Sale

Used Ford F-250 Super Duty
1,226 Great Deals out of 50,777 listings starting at $1,400
Used Ford F-450 Super Duty
88 Great Deals out of 1,455 listings starting at $9,995
Used RAM 3500
451 Great Deals out of 17,497 listings starting at $12,000
Used Ford F-150
6,440 Great Deals out of 163,202 listings starting at $993
Used Chevrolet Silverado 3500HD
339 Great Deals out of 12,350 listings starting at $6,995
Used GMC Sierra 3500HD
224 Great Deals out of 7,406 listings starting at $9,995
Used Chevrolet Silverado 2500HD
1,049 Great Deals out of 39,191 listings starting at $4,700
Used Dodge RAM 3500
43 Great Deals out of 440 listings starting at $5,999
Used GMC Sierra 2500HD
547 Great Deals out of 24,772 listings starting at $5,900
Used Ford F-250
189 listings starting at $18,900
Used RAM 2500
1,029 Great Deals out of 40,889 listings starting at $6,631
Used Ford F-350 Super Duty Chassis
125 Great Deals out of 5,386 listings starting at $5,700
Used Dodge RAM 2500
38 Great Deals out of 936 listings starting at $3,514
Used Chevrolet Silverado 1500
4,177 Great Deals out of 122,089 listings starting at $1,999
Used GMC Sierra 1500
1,876 Great Deals out of 69,074 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. Content will be removed if CarGurus becomes aware that it violates our policies.