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Battery was hooked up backwards in 1987 BMW 325 now car wont start?
Wiki User
∙ 13y ago
You have some serious problems. Hooking up a battery backwards plays hell with the electronics. If you really want to keep the car you will probably have to replace a lot if not all the electronic control devices that manage your engine.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoDepending on what you mean there are two answers. A car being jumped with cables on backward will short out the car either blowing the electrical system and or causing sparks. If you are installing a battery in your car and you put the cables on backwards then you will either drain the battery or short out the car.
Wiki User
∙ 14y agoThat is correct, u may also have damaged some electronic devices. A car battery has a + and - , its DC so it matters how to connect it.
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