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i have a 2000 xtreme and its was stalling on me when i was stopped at a light. took it in and had a new 160 amp alternator put in. now the voltage drops at idle when warm. i thought it was the alternator so i put in a 200 amp and it still drops way down and even when driving fast it does not go to 14-15 volts like it did before it goes to about 13.5. when the engine is cold the voltage reads 14 at idle and it would read 15 before. i did not think the higher amp alt. would drop so low help please...
 
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