Not Ranked
Tuan, welcome to the group! It doesn't sound like you really need a shop with extensive Cobra experience for this particular problem. You might want to take it by an Auto Zone or similar and have them hook your car up to a charging system analyzer. It sounds like you have the capability to change whatever needs to be changed you just need help tracking down the problem. Since most Cobras don't have all that different a charging system from other cars you may just be able to find the problem that way.
I recently went to my local Auto zone to see if they had a code reader to buy. They said that they did, but that they would do it free for me anyway. I had a “check engine” light on and at that point had no idea why. Turns out it was one of the o2 sensors and would cost me over $300 smackers to replace it. The guy then offers the suggestion that I might want to just pull them out, spray them with carb cleaner and reinstall them to see if it worked. He used their code reader to reset the engine light and I tried the carb cleaner trick. Damned if it didn’t work. His explanation was that there was probably just a small piece of crud in one that was causing a miss-read on the part of the computer and the carb cleaner blasted it out. The truck has run fine now for the last 3000 mi (it's what I drove to London). Needless to say that free service saved me a butt-load of cash in parts not to mention the reaming I’d have gotten if I’d taken it to the Toyota dealer. They wanted $70 just to hook the thing up to their analyzer.
I know that’s long and involved for a suggestion but it just may help.
Steve
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