Buzzing After TFI coil install

PeTr0 · 02-15-2001, 10:18 PM

I hear a strange buzzing sound inside the car after i put my MSD TFI coil in today. What the heck is it. I do have my tach wired to it....

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Red 1993 Gt- flowmasters,BBK Shortie Headers, BBK Hi-Flow H-Pipe, BBK cold air induction w/K&N, Pro 5.0 shifer, 130 amp alt., underdrives,pioneer cd player and kicker component speakers, Kenwood Excelon amp, 2 12" subs in the hatch,firehawk sz50 all around, timing bumped to 13 deg., ADS Superchip, and mobil 1 oil lubing the 302.

Chappy · 02-15-2001, 11:56 PM

Mine does the same thing... it is the coil. As for what to do with it, I don't really know. I got one from Summit, and it made the noise. I called them up and sent it back. Got the replacement and it's not as loud as the last one, but you can still hear it when the windows are up at lower rpms.

Capri306 · 02-16-2001, 01:59 AM

I had the same problem with the Accel coil that came with my Notch. Didn't care for it much, and since the stock TFI system is good for 50kV, I bought a new stock replacement. No probs since. I didn't see how something buzzing under my hood was doing much for me anyhow, other than making me worry if it was going to explode or something.

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Capri306, Moderator, The Mustang Works Online
1979 Mercury Capri, 5.0L -- C4 -- 2.73
1987 Mustang LX Notch

<--- New Timeslips

84_GT350 · 02-16-2001, 04:17 AM

Could it be a loose or improper ground? That can cause a buzz in a lot of electrical equipment. Just a thought.

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1984 1/2 GT350 (#842 Hatchback w/ T-tops), 302HO, Comp cams Xtreme Energy cam, Carter 625cfm carb, Weiand Stealth intake, MSD distributor, MSD coil, FMS 9mm wires, 1 5/8" MAC unequal shorties, 2 1/2" MAC Prochamber H-pipe, Flowmaster 2 chambers, KYBs, 16"x8" 4 lug Cobra Rs, Falken 245/45ZR16s

Mach 1 · 02-16-2001, 05:37 AM

Many people seem to experience this noise with aftermarket coils. Send it back, you dont need it, stock coil is great.

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1993 GT/AOD
'93 Mustang GT

Phil Ossifer · 02-16-2001, 02:02 PM

PeTr0,

Get rid of that piece of junk by MSD but before you do, compare it to the stock coil. You'll see the stocker is built much better, also it’s more than sufficient.

I went through three of those MSD #8227 coils, they didn't do anything accept Buzzzzzzz. Shame on MSD for marketing crap like that!

I offered to sell mine on this forum for $5, plus shipping, it only has about 400 miles on it. The offer still holds.... Any takers?

Phil

86GT · 02-16-2001, 02:49 PM

My stock coil buzzed but that was two to three days before it died (I don't know why it did, so don't ask). I had a MSD Blaster coil and it did nothing but buzz loudly. It worked fine for the time I had it, but now I've got the Accel 300+ Race ignition system and that coil does not buzz, only the ignition box does slightly...

Nutty 5.0 · 02-17-2001, 09:27 AM

2 years ago I put in a Crane PS-91. It has buzzed to the day. Aftermarket coils will do that.
Besides, did you know the buzzing is good for 20 hp? Well thats what the Chevy guys claim! Just kidding.

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-Nutty 5.0
93 GT Red/Grey
S trim, Edelbrock 6037 heads, E cam, BBK longtubes w/cats, 3 chamber Flowmasters, BBK Alum. underdrive pullies, Cobra intake, Accel fuel regulator, BBK 70mm t.b., 73mm C&L meter, ram air, 1.7 roller rockers, Mac upper and lower strut tower braces, FMS lowering springs, Factory Five upper and lower control arms, Speedware Cobra R 17X9 wheels, 3.73 gears and ram air hood, Cobra wing, and grille insert.

02-15-2001, 10:18 PM	#1
PeTr0 Registered Member Join Date: Jun 1999 Location: Chicago, IL, USA Posts: 286	Buzzing After TFI coil install I hear a strange buzzing sound inside the car after i put my MSD TFI coil in today. What the heck is it. I do have my tach wired to it.... ------------------ Red 1993 Gt- flowmasters,BBK Shortie Headers, BBK Hi-Flow H-Pipe, BBK cold air induction w/K&N, Pro 5.0 shifer, 130 amp alt., underdrives,pioneer cd player and kicker component speakers, Kenwood Excelon amp, 2 12" subs in the hatch,firehawk sz50 all around, timing bumped to 13 deg., ADS Superchip, and mobil 1 oil lubing the 302.

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02-15-2001, 11:56 PM	#2
Chappy Registered Member Join Date: Jan 2000 Location: West Lafayette, In Posts: 14	Mine does the same thing... it is the coil. As for what to do with it, I don't really know. I got one from Summit, and it made the noise. I called them up and sent it back. Got the replacement and it's not as loud as the last one, but you can still hear it when the windows are up at lower rpms.

02-16-2001, 01:59 AM	#3
Capri306 Moderator Join Date: Sep 1998 Location: Grand Rapids, Michigan, USA Posts: 1,001	I had the same problem with the Accel coil that came with my Notch. Didn't care for it much, and since the stock TFI system is good for 50kV, I bought a new stock replacement. No probs since. I didn't see how something buzzing under my hood was doing much for me anyhow, other than making me worry if it was going to explode or something. ------------------ Capri306, Moderator, The Mustang Works Online 1979 Mercury Capri, 5.0L -- C4 -- 2.73 1987 Mustang LX Notch <--- New Timeslips

02-16-2001, 04:17 AM	#4
84_GT350 Registered Member Join Date: Apr 1999 Location: Overland Park, KS, USA Posts: 1,631	Could it be a loose or improper ground? That can cause a buzz in a lot of electrical equipment. Just a thought. ------------------ 1984 1/2 GT350 (#842 Hatchback w/ T-tops), 302HO, Comp cams Xtreme Energy cam, Carter 625cfm carb, Weiand Stealth intake, MSD distributor, MSD coil, FMS 9mm wires, 1 5/8" MAC unequal shorties, 2 1/2" MAC Prochamber H-pipe, Flowmaster 2 chambers, KYBs, 16"x8" 4 lug Cobra Rs, Falken 245/45ZR16s

02-16-2001, 05:37 AM	#5
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	Many people seem to experience this noise with aftermarket coils. Send it back, you dont need it, stock coil is great. ------------------ 1993 GT/AOD '93 Mustang GT

02-16-2001, 02:02 PM	#6
Phil Ossifer Registered Member Join Date: Jan 1999 Location: Sterling Heights, Michigan Posts: 217	PeTr0, Get rid of that piece of junk by MSD but before you do, compare it to the stock coil. You'll see the stocker is built much better, also it’s more than sufficient. I went through three of those MSD #8227 coils, they didn't do anything accept Buzzzzzzz. Shame on MSD for marketing crap like that! I offered to sell mine on this forum for $5, plus shipping, it only has about 400 miles on it. The offer still holds.... Any takers? Phil

02-16-2001, 02:49 PM	#7
86GT Sniffed too much n20 Join Date: Oct 1998 Location: Ont, Canada Posts: 1,018	My stock coil buzzed but that was two to three days before it died (I don't know why it did, so don't ask). I had a MSD Blaster coil and it did nothing but buzz loudly. It worked fine for the time I had it, but now I've got the Accel 300+ Race ignition system and that coil does not buzz, only the ignition box does slightly...

02-17-2001, 09:27 AM	#8
Nutty 5.0 Registered Member Join Date: Apr 2000 Location: Collegeville, Pa, USA Posts: 75	2 years ago I put in a Crane PS-91. It has buzzed to the day. Aftermarket coils will do that. Besides, did you know the buzzing is good for 20 hp? Well thats what the Chevy guys claim! Just kidding. ------------------ -Nutty 5.0 93 GT Red/Grey S trim, Edelbrock 6037 heads, E cam, BBK longtubes w/cats, 3 chamber Flowmasters, BBK Alum. underdrive pullies, Cobra intake, Accel fuel regulator, BBK 70mm t.b., 73mm C&L meter, ram air, 1.7 roller rockers, Mac upper and lower strut tower braces, FMS lowering springs, Factory Five upper and lower control arms, Speedware Cobra R 17X9 wheels, 3.73 gears and ram air hood, Cobra wing, and grille insert.