Hey guy's
I just joined the pos alternator group. Two test confirmed low voltage/bad diode.
I've done the search and know everyone is having to buy the $400 07' alternator,but I'm wondering if it's possible to have the factory alternator rebuilt and/or have a new diode put in?

Thanks

 

That's exactly what I did and it only cost $200 for parts and labor with a 1 year warranty. I did have to sit around a few hours while they rebuilt the alternator. It also fixed my battery problems of the last year or so. I think that a lot of the so called battery problems people have been having are actually alternators that are "soft" failing. This is a VERY common problem with the 3-valve engines in Mustangs and Ford trucks.

HTH!

 

what years suffer from this problem??

 

I have an '07 and mine went out at around 28,000 miles. Replaced under warranty.... and without any scratches to my hood.

 

damn my 05 still is doing good

 

Thanks F1FAN
This sure beats paying $405 ! Going this Friday to have it rebuilt. Did you have a local repair shop do the work?

Grampa_Stang ....
Your's went out ! I thought the fix for the 05-06 stangs WAS the 07 Alternator !!!
Do you know if the cause was the diode or not ?

rford426....
Have you spun her to 6k yet ? lol....really ! I heard thats the main reason for the failure,something about the high rev's damaging the diode in the regulator.

 

Damn, why are you guys paying so much for an alternator?

http://www.pa-performance.com/Script...elname=Mustang

 

Alright I'm good to go now !

My local shop rebuilt it for $80. He showed me the part he replaced,the plate which holds the diodes. The new one has a noticeable difference in size....connections/solders/etc.

He believes the main reason for the issue is the clutch pulley on our alternators(Which I didn't know we had). He said the sudden off & on cycles can pop the diodes.

But anyway...I'm back on the road, thanks for the help.

 

These alternators are pieces of crap. I had one replaced in May of this year and my engine light came on this morning. The dreaded p0340. I'm at 37,000 miles now. Alt was replaced at 28,000 so I still have 3k miles before the warranty is up on the replacement.

These alts truly suck.

 

what are the characteristics of a bad alternator in these cars? Just rough running or what?