i am having trouble finding pertinent information in here, (cnt believe no one else in here has my problem) from day one I have had (electrical) start up problems with my 89 isuzu pu. the relays have been a trouble spot along with the postive split cable from battery, dnt know why, after the truck has set for about a yr, I cnt get her to run. the fuel pump and the heater fan wont work. bfore I go and drop the tank I need to make sure it is not another problem. i read if I pull the blue charge relay the heater fan will blow, well this does not tell me why the heater fan wont work it simply shows that it will run when the blue relay is pulled WHY? now onto the fuel pump, help??