ALTERNATOR FAILURES

ICE P

MEMBER
1 POST

2002 F-350 W/ V-10,DUALLY, 4 DOOR, 104,000 MILES. WILL A BAD ALTERNATOR CAUSE SPARK PLUG COILS TO FAIL? LOST 1ST ALT, #5 COIL FAILED. LOST 2ND ALT, #10 WENT. LOST MY THIRD ALT, #2 FAILED. THEY WERE A BAD BATCH OF ALTERNATORS FROM THE LOCAL REBUILD GUY. THEY COVERED THE ALTS BUT FORD CHARGES $533.00 EACH TIMETO REPLACE THE COIL. YES, I STARTED REPLACING THEM MYSELF NOW.

Nov 28, 2007 at 6:55 AM

FISHERMAN

✓Experienced Mechanic
937 POSTS

[quote:bbebfe3775="ICE P"]2002 F-350 W/ V-10,DUALLY, 4 DOOR, 104,000 MILES. WILL A BAD ALTERNATOR CAUSE SPARK PLUG COILS TO FAIL? LOST 1ST ALT, #5 COIL FAILED. LOST 2ND ALT, #10 WENT. LOST MY THIRD ALT, #2 FAILED. THEY WERE A BAD BATCH OF ALTERNATORS FROM THE LOCAL REBUILD GUY. THEY COVERED THE ALTS BUT FORD CHARGES $533.00 EACH TIMETO REPLACE THE COIL. YES, I STARTED REPLACING THEM MYSELF NOW.[/quote:bbebfe3775]

Hello !!

At least you`re lucky!

High voltage from a faulty alternator can cause severe damage to the ECU and that.. That`s expensive!

High voltage can damage several things and I think your problem was over-voltage or faulty regulator..

Next time get a brand new alternator.. sometimes the cheap gets expensive!

Good Luck!

Nov 28, 2007 at 7:10 AM

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