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Old 07-28-2010, 12:22 AM
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Need help with 84 caprice

I installed a cd player in my car about a month and a half ago. It worked fine until the about a week ago. It keeps cutting out when Im not in park. Also my lights dim when this occurs and messes with my windshield wipers.Ive checked the wires and everything looked fine. One thing ive noticed is that my power wire from the battery to my amp for my subs had some of the covering rubbed off and wire exposed. I taped it up with electrical tape but thats the only thing i could find. I would appreciate any help or ideas thanks.

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Old 07-28-2010, 06:30 AM
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Power suppply.

I guess you have to look at the state of the connections from the positive and negative circuits that are common to your lights and wipers and cd player. They should have separate fuses so that should eliminate the positive wires to lights, wipers and cd. Check the earth circuits by introducing an extra temporary earth wire with aligator clips which is common to each circuit. If things work normally then there is a clue for a bad earth connection. I have found on my mustang that the voltage regulator is earthed by using self tapping screws through the sheetmetal body. I have replaced all the sheetmetal earth connections with slightly larger stainless bolts and nuts so the earth is in clean metal contact. Dimming lights indicate low voltage from a poor circuit. A "short" will mean a positive to negative connection and blow the fuse completely. Old plastic insulation cracks , corrosion creeps in and voltage will drop from 12 .
Good luck
Al.
One circuit at a time should show up some defect.
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Old 07-28-2010, 07:32 AM
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I would be willing to bet it's a bad ground, probably common to all the affected accessories, maybe you just need to clean, or add a better body ground.
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Old 07-28-2010, 02:47 PM
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ok thanks ill try to see what i can do and let you guys know. Thanks again.
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Old 07-28-2010, 04:12 PM
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it was the ground it had completely tore off the post just rewired it and now is working thanks again for the help.
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Old 07-28-2010, 09:15 PM
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Auto trans cooler ????

Quote:
Originally Posted by Rickracer
I would be willing to bet it's a bad ground, probably common to all the affected accessories, maybe you just need to clean, or add a better body ground.
Just a quick question for you Ric if you dont mind. I have a C4 auto on a 347 and i am fitting an oil cooler while the thing goes back together. Is it better to fit a trans cooler totally separate from the radiator or use the radiator as well as the oil cooler. I have a rough sketch here to try and explain what i am on about.
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Al.
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Old 07-29-2010, 09:06 AM
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All the OEM systems with auxiliary coolers go through the radiator first, then the added on cooler, that's the way I always do it too,
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Old 07-30-2010, 07:10 PM
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Auto Trans cooler

Thanks Rick. i will go with the way of oem then. I guess that way would take a few more degrees out of the oil temp before it gets to the cooler.
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