Progress Thread 12th Owner: My '93 Notchback Restoration & Performance Build

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,260

17,945

224

Massachusetts

Nov 21, 2020

#521

• Nov 21, 2020

• #521

You’d see the pressure drop off. Anyway to get a reading while at a roll?

 

Habu135

5 Year Member

Jan 10, 2019

1,223

782

133

California

Nov 21, 2020

#522

• Nov 21, 2020

• #522

Mustang5L5 said:

You’d see the pressure drop off. Anyway to get a reading while at a roll?

Click to expand...

I have a fuel pressure gauge on it within the engine bay. I suppose I could drive home at first hint of it and jack up the rear.

 

Habu135

5 Year Member

Jan 10, 2019

1,223

782

133

California

Nov 21, 2020

#523

• Nov 21, 2020

• #523

Habu135 said:

I have a fuel pressure gauge on it within the engine bay. I suppose I could drive home at first hint of it and jack up the rear.

Click to expand...

Have you ever heard of anything like this?

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,260

17,945

224

Massachusetts

Nov 21, 2020

#524

• Nov 21, 2020

• #524

My car was doing something similar. Ended up being the aftermarket coil.

 

Habu135

5 Year Member

Jan 10, 2019

1,223

782

133

California

Nov 21, 2020

#525

• Nov 21, 2020

• #525

Mustang5L5 said:

My car was doing something similar. Ended up being the aftermarket coil.

Click to expand...

It does have an aftermarket coil on it.

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,260

17,945

224

Massachusetts

Nov 21, 2020

#526

• Nov 21, 2020

• #526

Habu135 said:

It does have an aftermarket coil on it.

Click to expand...

got a stocker you can test out on it?

 

Habu135

5 Year Member

Jan 10, 2019

1,223

782

133

California

Nov 21, 2020

#527

• Nov 21, 2020

• #527

Mustang5L5 said:

got a stocker you can test out on it?

Click to expand...

No, but if that's the likely culprit ill just purchase a Ford one from RockAuto.

 

Potomus Pete

I'm still waiting for the fully nude shots

5 Year Member

Mar 7, 2019

3,308

1,223

153

Sarasota Florida

Nov 21, 2020

#528

• Nov 21, 2020

• #528

X2 My MSD coil is in a box. Replaced with Ford with similar problem.

 

Habu135

5 Year Member

Jan 10, 2019

1,223

782

133

California

Nov 21, 2020

#529

• Nov 21, 2020

• #529

Potomus Pete said:

X2 My MSD coil is in a box. Replaced with Ford with similar problem.

Click to expand...

Nice. Thanks How about NGK?

 

Attachments

• Screenshot_20201121-164546_Chrome.webp

  93 KB · Views: 142

Potomus Pete

I'm still waiting for the fully nude shots

5 Year Member

Mar 7, 2019

3,308

1,223

153

Sarasota Florida

Nov 21, 2020

#530

• Nov 21, 2020

• #530

I dont know too many stories on here like yours and Motorcraft was the fix. Plus they dont cost much more

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,260

17,945

224

Massachusetts

Nov 21, 2020

#531

• Nov 21, 2020

• #531

I put a used Ford coil on mine. I trust it more than some of the stuff out there right now.

mine was an accel

 

Habu135

5 Year Member

Jan 10, 2019

1,223

782

133

California

Nov 21, 2020

#532

• Nov 21, 2020

• #532

Mustang5L5 said:

I put a used Ford coil on mine. I trust it more than some of the stuff out there right now.

mine was an accel

Click to expand...

Ok. Thanks. I think the Motorsports one through Rock Auto is $87. Not bad.

 

Habu135

5 Year Member

Jan 10, 2019

1,223

782

133

California

Nov 22, 2020

#533

• Nov 22, 2020

• #533

Getting a Motorcraft coil (Part #DG470) from OReilly's today. We'll see if it resolves the issue.

 

Reactions: General karthief, Rdub6, Potomus Pete and 1 other person

Habu135

5 Year Member

Jan 10, 2019

1,223

782

133

California

Nov 22, 2020

#534

• Nov 22, 2020

• #534

"Street Fire an MSD Brand". This thing has seen better days.

 

Attachments

• 16060887156761780610689848155962.webp

  812 KB · Views: 150

Habu135

5 Year Member

Jan 10, 2019

1,223

782

133

California

Nov 22, 2020

#535

• Nov 22, 2020

• #535

If it's not the coil then the only thing remaining that I can think of is the computer is going bad? I don't know if the circuits slowing fade out or go bust all at once.

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,260

17,945

224

Massachusetts

Nov 22, 2020

#536

• Nov 22, 2020

• #536

There’s other things that I would suspect before computer. If it’s not the coil, I’d do some troubleshooting first before launching the parts cannon at the issue. Fuel pressure under load is one thing. Spark plug gap and condition of plugs. Compression test, and several others.

 

Reactions: Habu135

General karthief

wonder how much it would cost to ship you a pair

20+ Year Stangneter

Aug 25, 2016

27,947

10,585

203

polk county florida

Nov 22, 2020

#537

• Nov 22, 2020

• #537

Coil wire?
One spark plug wire with a intermittent short to ground?
Plug boot(s) going bad causing cross fire?

 

Habu135

5 Year Member

Jan 10, 2019

1,223

782

133

California

Nov 23, 2020

#538

• Nov 23, 2020

• #538

I've checked all the wires while it's dark and have observed no arcing or cross fire.

The fuel pressure was set at 38 during my tune and has always remained consistent. Spark plugs are new and wires are "newer" and I had a valve job less than 1k ago.

Ill drive it to a car show this coming weekend and will be able to determine if the new Motorcraft coil solved the issue.

Good discussion.

 

Reactions: 90sickfox and General karthief

Habu135

5 Year Member

Jan 10, 2019

1,223

782

133

California

Nov 24, 2020

#539

• Nov 24, 2020

• #539

Still doing it. It's not the coil and it's not due to the volume of fuel in the tank. So strange.

 

Attachments

• Resized_20201124_130836.webp

  922.3 KB · Views: 122

Cheapskate207

The left one hangs a little lower

5 Year Member

Jan 12, 2020

761

541

113

Maine

Nov 25, 2020

#540

• Nov 25, 2020

• #540

Was it doing this before you got the tune this summer? I went back to read about it a noticed you had a coolant leak. What ever came of that?

Drew