Car Help Needed Badly

[JusBlaze 10+ year member]

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????

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[Rich B 5,000+ posts]

Does your car have a separate voltage regulator (not inside the alternator)?

 

[JusBlaze 10+ year member]

Does your car have a separate voltage regulator (not inside the alternator)?

dont really kno

 

[JusBlaze 10+ year member]

what else should i try??

 

[JusBlaze 10+ year member]

Does your car have a separate voltage regulator (not inside the alternator)?

would that make it idle rough???

 

[gearhound17 10+ year member]

is it carbureted or fuel injected?

 

[Rich B 5,000+ posts]

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 10+ year member]

is it carbureted or fuel injected?

injected

 

[JusBlaze 10+ year member]

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 10+ year member]

anybody???

 

[99grandprixGT 5,000+ posts]

guess its possible you got a bad alt out of the box?

 

[JusBlaze 10+ year member]

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 10+ year member]

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.