I have a similar problem. My alt. is either getting weak or my load is too high. If I go for a 10 mile drive and blast highbeams, run the radio, have the blower on high and have my aux headlights on I usually wont have enough power to start. However, If i run the blower on medium and dont use highbeams when unneccessary I have plenty of power.


I myself carry a fully charged full size diesel battery in the trunk and set of heavy welding cables (i had normal cables and they melted after 15 seconds of cranking. I can usually get stranded and have my car started in about 2 minutes. Everyone with an amp hungry diesel should do this

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1981 300SD 512k OM603