Don't crank continuously, it's bad for the starter. Crank about 30 seconds and then wait a minute. Then do it again. Also, WD-40 may be good for starting diesels, but not the 7.3 DI. If it starts and there is no proper lubrication inside the injectors, they will burn out. They are tempermental anyway and are not like other injectors. They are also expensive to replace--several hundred dollars each. Then you have to bleed the high pressure oil system down in order to remove the injectors. If they burn out, the overall cost to replace them all is about the same price as a used economy car. Just keep cranking and let the fuel system purge itself, it may do some damage, but not as much as using a supplimental starting method.
Saturday, February 16th, 2008 AT 5:14 PM