low voltage
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low voltage
I checked more than 20 pages of questions, and haven't seen this problem.
About four months ago, my girlfriends car started to crap out. 04 dodge neon SXT. She had a low amp warning, as well as a few other problems which were accredited to the alternator going out. So, we replaced the alternator. She then was getting low voltage warning, so we replaced the battery. We also replaced the cam shaft, cam shaft sensor, did a complete check of all cables and such. She still has her check engine light, a slow start up (cranks for 5-10 seconds before firing) and her car is definitely at a loss of power, the transmission shifts at higher revs, and she noted that it began to buck, a little bit, when she was getting up to interstate speeds (past 55 mph)... Any help? I checked a FAQ and the only thing I could think of would be the coil, but, I'm hardly believing that would cause low voltage. What else could cause a low voltage warning?
About four months ago, my girlfriends car started to crap out. 04 dodge neon SXT. She had a low amp warning, as well as a few other problems which were accredited to the alternator going out. So, we replaced the alternator. She then was getting low voltage warning, so we replaced the battery. We also replaced the cam shaft, cam shaft sensor, did a complete check of all cables and such. She still has her check engine light, a slow start up (cranks for 5-10 seconds before firing) and her car is definitely at a loss of power, the transmission shifts at higher revs, and she noted that it began to buck, a little bit, when she was getting up to interstate speeds (past 55 mph)... Any help? I checked a FAQ and the only thing I could think of would be the coil, but, I'm hardly believing that would cause low voltage. What else could cause a low voltage warning?
Last edited by MightyxMax; May 20, 2013 at 07:51 AM.
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Low system voltage can cause all of those problems. So start by addressing the root cause of low voltage instead of the symptoms. This vehicle uses a battery temp sensor as an input into the PCM (see post below on how this system works). And the PCM is what determines battery charging rate. So check out the condition of the battery temp sensor and the condition of the connector. Then check the condition of the alternator field ground wire.
http://www.ricksfreeautorepairadvice...arging-systems
http://www.ricksfreeautorepairadvice...arging-systems
