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1999 Ford Mustang SVT Cobra, BATT/Charging/Starting Document
Posted to the Waveform Library on 2/10/2017

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1999 Cobra Mustang came in with customer complaint of battery being drained. Has had to replace battery several times over last 5 years, been to several shops. Often has to jump start. Used low amp clamp to confirm 219 mA parasitic drain (knowing some was for module memory). Stabilized vehicle temperature in shop, then used thermal camera to locate heat signature. Found heat in dash, disassembled dash, pulled radio and CD player, found main amp under radio/CD on all the time, disconnected amp and drain down to 17 mA at battery

Mark from Colorado


car Vehicle Data

1999 Ford Mustang SVT Cobra 4.6L

Engine4.6 L / 8 cyl / GAS
Trans5-speed StandardTransmission
DeliveryFuel Injection
ConditionKnown Bad