Hi. I'm not a mechanic, but I try to do my own mechanical, learning as I go. I've just encountered an electrical problem, that prevents me from starting it up. It's a 1988 V-10 Suburban. I thought that the battery was bad, but that's not it. Recently, the battery had seemed to drain rapidly, when it sat, but I thought nothing of it. I think a short somewhere keeps me from getting full cranking power. I understand basic electrical theory. But, the electrical diagrams in my Haynes manual are not complete. The Chevy service manual has no diagrams at all. I wanted to use my Ohm meter to locate the short, but can't trace the wiring. Starting at the battery positive terminal, red wires lead to both the battery and the alternator, then continue, from each of them, through the engine wiring harness. This is where the Haynes diagram is incomplete. Can anyone tell me where these red wires lead, and how the current goes through the ignition switch? Thanks.
CK5
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'88 Suburban Electrical Problem, won't crank
- Thread starter GaBnn3
- Start date
Easier way. Use an ammeter on the battery cable. Try a search for "short" "meter" and "battery cable" and I suspect you find posts on this.
Essentially you just pull fuses until the load disappears, which leads you to the culprit circuit.
Essentially you just pull fuses until the load disappears, which leads you to the culprit circuit.
