JohnHorner Posted November 25, 2014 Share Posted November 25, 2014 1994 twin turbo. My 7.5 amp fuse for the heater keeps blowing. After replacing it 4x even without the a/c on and no fan setting. has anyone got a solution or had this problem also and knows how to solve it or detect the cause pleas? John Link to comment Share on other sites More sharing options...
Chris Wilson Posted November 26, 2014 Share Posted November 26, 2014 (edited) You will have to just start disconnecting things until you isolate the part of the circuit with the ground fault or whatever is causing it. Time and patience needed, and a wiring diagram! I wou;d use a very good quality ohmeter between ground and the circuit side of the fuse holder, with no fuse fitted, to save on blowing dozens of fuses. It may need to resolve very low ohms to work effectively. Possibly a job for a good auto electrician if the fault doesn't show itself easily. Edited November 26, 2014 by Chris Wilson (see edit history) Link to comment Share on other sites More sharing options...
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