Question about Cars & Trucks
Hi Michael, Sorry to be the bearer of sad tidings but you have caused very serious problems to your vehicle. Every circuit which uses diodes and which were operational during your failed attempts at starting have probably been damaged. A diode is an electronic component something like a one way valve and can be compared with a water reticulation system. By connecting the battery the wrong way around the diode packs which convert AC current to DC in the alternator have been damaged. Likewise those in the computer, and any other electronic equipment which was turned on at the time of the failed attempts at starting will have been blown. The damaged components are not very expensive but to replace them will need a knowledge of electrical circuitry. If you have a friend you can call on to help you repair the damage, he or she will need to remove the alternator, computer, music system, climate control and any other systems which have failed and replace the electronic components damaged in those units. If you do not have a friend with that ability replacement of the affected units will be required. Sorry Michael Best of luck, John
Posted on Jul 20, 2013
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Posted on Jan 02, 2017
SOURCE: 2001 FORD FOCUS LX
if the battery is ok there could be one of two problems have you tried the spare key? it may be a problem with the immobiliser look at the red light near the time clock it should go out when atempting to start. second try tow starting or bump starting you may have a faulty starter motor do not try this to often or you could damage the cat. do you get any noises when trying to start such as a clicking ? this would indercate faulty solinode on starter hope this helps
Posted on Jul 15, 2008
SOURCE: 81 toyota pick-up. No spark
Check to make sure the main fuse is good. Sometimes those blow when you short out a wire from the battery to the ground on the car *like when an alternators live wire hits ground on the car.
On a 1981 Toyota pickup, im unsure of where it is located, but sometimes they are located in the fuse box, as a big fuse usually a 100 amp or 80amp fuse.. Sometimes they are located along a ground connected to the engine and the frame of the car. This could make it just crank and not start.
Check also to make sure that the engine is grounded, by taking a test light and connecting it to the positive side of the battery, and testing the metal around the motor. Sometimes grounds can break, or when shorted out they can melt. If the motor is not grounded then it will not start. and will just crank.
Hope this helps a little - Jarett
Posted on Aug 17, 2009
Posted on Oct 05, 2011
Battery voltage is definitely and issue. Charge your battery and have it tested before condemning the starter.
Posted on Jul 08, 2012
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