I put in a new battery to my 1991 Mercury Capri, I connected the battery and the headlights simultaneously went up and down, the car would not start, the lights came on, but the headlights would not stop opening and closing.
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Re: New Battery Installation (Problems)
I would remove the battery and give it a good charge. New batterys require a low amp over night charge. A cars altenator isn't designed to charge a battery it's made to maintain the battery to it's fullest ability. The headlights opening and closing would indicate to me a low voltage, causing the relays for the headlights not to fully shut or open. Let me know if this solves your issue, if not we can trouble shoot farther. Thank you for using fixya.com
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Disconnect the Red battery terminal first and then loosen the serpentine belt by moving the tensioner pulley with the correct socket to permit slack enough to dislodge the serpentine belt from any pulley such as the idler pulley or other pulley. Pay close attention of how the belt is routed prior to removing. Remove electrical connections to the alternator. Remove all alternator mounting bolts to remove the alternator. I would recommend a Haynes manual from the parts store on your vehicle. I will help you now and well into the future with all problems that may occur. Be sure you have a fully charged battery at all times as a low battery will cause the internal voltage regulator to over heat and burn up due to the need for more amperage than the alternator can generate.
I am afraid that you smoked some stuff. If you are very lucky, you may be able to get by with replacing a fuse or 2. However there may be damage to several components, including the engine control module.
The first thing to check is for blown fuses in the main fuse panel located next to the battery on the left strut tower. (See picture)
Check your alt.. alt voltage output should be at least 13.2, sounds like it's not charging and your possibly running off the battery, as for the dash and tail lights, there both on the same system, check the fuse.
charge the battery and once fully charged, do a LOAD test on it, clean all the connections and start the car ,, check the voltage at the battery posts with the car running, you should get between 13.5 and 14.5 volts, if not, replace the alternator , if you do, the battery and the cables just needed some attention
drain fluid, disconnect battery neg., remove shifter assem from top, remove driveshaft, support trans and remove crossmember, remove trans housing bolts, remove starter, remove trans. This is basic removal. Be very carefull to suport properly!