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JusBlaze
06-11-2009, 09:37 PM
i have a 93 plymouth acclaim and i put the dmm on my brand new batt out the car it reads 12+ but when i put it in the car and start it its readin low 11s,it idles rough and barely wants to stay started..between yesterday and today i did:
new alternator,fuel filter,complete tune-up,air idle control valve. what could it be????

Rich B
06-11-2009, 09:43 PM
Does your car have a separate voltage regulator (not inside the alternator)?

JusBlaze
06-11-2009, 09:48 PM
Does your car have a separate voltage regulator (not inside the alternator)?

dont really kno

JusBlaze
06-11-2009, 09:59 PM
what else should i try??

JusBlaze
06-11-2009, 10:21 PM
Does your car have a separate voltage regulator (not inside the alternator)?

would that make it idle rough???

gearhound17
06-11-2009, 10:26 PM
is it carbureted or fuel injected?

Rich B
06-11-2009, 10:28 PM
would that make it idle rough???

Low voltage would, yes.

I checked, and I think your voltage regulator is built in on your alternator, so if the regulator is bad your new alternator is bad.

Do you have a Kragen/O'Reilys or an Autozone near?

They can check your charging system for free if you can get your car to them.

JusBlaze
06-11-2009, 10:32 PM
is it carbureted or fuel injected?

injected

JusBlaze
06-11-2009, 10:34 PM
Low voltage would, yes.

I checked, and I think your voltage regulator is built in on your alternator, so if the regulator is bad your new alternator is bad.

Do you have a Kragen/O'Reilys or an Autozone near?

They can check your charging system for free if you can get your car to them.

is the regulator built-in the alt?.

JusBlaze
06-11-2009, 11:14 PM
anybody???

99grandprixGT
06-11-2009, 11:15 PM
guess its possible you got a bad alt out of the box?

JusBlaze
06-12-2009, 10:31 AM
guess its possible you got a bad alt out of the box?

i got the new alt cuz i thought the old one was bad

audioatg
06-12-2009, 08:16 PM
Did you check the main fuse for the Alt to batt. I know ford does the fuse in the wire crap that always goes bad in some way. Check for open in the alt wire.