New plugs, wires, dist cap and rotor, now randomly stalling

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WhiskeyFoxTrot

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Aug 30, 2022

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Long Island Ny

Oct 12, 2024

#1

• Oct 12, 2024

• #1

So I replaced my plugs, gapped to .054, wire, dist cap and rotor, and changed fuel filter…… the plugs I removed were autolite and the wires were Ford racing, I replaced everything with motorcraft parts. Car was running perfect , took it out for a long run and it randomly shut off at 50 mph…… Rpm’s drop out and it dies…… key off and re crank and it starts up and continues on until the next time it dies. It’s never done this before so I’m going to assume it’s something to do with the new parts….what would cause these symptoms?

 

AeroCoupe

lube between the nut and the face. I know my lubes

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Oct 12, 2024

#2

• Oct 12, 2024

• #2

So some information on the car would help...year, motor, trans, mods, etc. Also, have you checked for codes? The CEL only illuminates for emissions related codes so non-emissions codes can be present.

 

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WhiskeyFoxTrot

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Oct 12, 2024

#3

• Oct 12, 2024

• #3

Sorry, it’s a 91 lx, minimum bolt ons….. alum heads, cobra intake, msd, cam

 

AeroCoupe

lube between the nut and the face. I know my lubes

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Oct 12, 2024

#4

• Oct 12, 2024

• #4

Have you checked for KOEO and KOER codes? Remember you need the motor up to operating temperature to correctly pull the codes.

 

rednotch

I'd like to remain having one chocolate starfish

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#5

• Oct 12, 2024

• #5

I'd start with puting the old cap and rotor back on see if it still does it, and inspect the rotor seen a few new ones pretty much falling apart after little useage. Honestly I avoid newer motor craft ignition parts now for old push rod stuff.. Could be something else failing but never hurts to try the old parts.

 

nickyb

I gotta say i never painted my nuts, Never Ever

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#6

• Oct 12, 2024

• #6

Ditto on putting old cap n rotor back on.
The reason I keep old parts for a long time .

 

Noobz347

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Oct 12, 2024

#7

• Oct 12, 2024

• #7

Run the engine in the dark with the hood open. Look for Lightning. Look in the slots around the coil too.

 

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WhiskeyFoxTrot

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Oct 15, 2024

#8

• Oct 15, 2024

• #8

I’ll try that when it gets dark tonight…… I pulled codes and it’s alot of them…… koer- 41,43,72,54
Koeo-15,85,10,18,41,29,33….. the 72 has to do with the maf, and 54 w/ intake it looks like…… I did remove the intake when swapping plugs….. will the maf cause the car to intermittently fall flat on its face?

 

89ripper

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#9

• Oct 15, 2024

• #9

Not necessarily. The maf can be unplugged even, will just run like crap.

Edit: and by "falling flat" I assume you mean stalling out.

 

Last edited: Oct 15, 2024

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WhiskeyFoxTrot

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Long Island Ny

Oct 15, 2024

#10

• Oct 15, 2024

• #10

Yes, completely shuts down…. Only battery light on dash…… I’m putting old parts back on now to see if there was an issue with the dist or wires

 

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WhiskeyFoxTrot

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Long Island Ny

Oct 15, 2024

#11

• Oct 15, 2024

• #11

Lol….. I love this car but it drives me nuts sometimes…… I put the old dist cap, rotor and wires back in ……. Long ride and zero Miss or shut down ….. must have been an issue with the new motorcraft parts….. I’ll put some more miles on it and see if it holds….. next question, what does everyone recommend for cap, rotor and wires? Car has msd, stock distributor…. Should I do msd stuff or is there something else guys like?

 

89ripper

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#12

• Oct 15, 2024

• #12

I have always had good luck with accel...not sure how they are nowadays it tends to be available at your chain auto stores which is why its on the car to begin with. You have one of those msd boxes on yoir car?

 

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WhiskeyFoxTrot

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Oct 15, 2024

#13

• Oct 15, 2024

• #13

Yea, the car does have msd….. I just feel like everything is made like now a days…. Was just curious what everyone is using

 

89ripper

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#14

• Oct 15, 2024

• #14

Ive never been a big fan of ignition boxes. Im sure they have their place for people trying to eek out as much power as they can but stock ignition works just fine. What mods do you have?

 

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WhiskeyFoxTrot

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Oct 15, 2024

#15

• Oct 15, 2024

• #15

Car had it when I got it….. I honestly couldn’t care less if it’s there or not. It has heads, cam, roller rockers, cobra upper and lower, msd…. Not sure as far as injectors or anything else…. I’m not trying to blow it up so I drive it easy anyway. I just want it to be reliable and run decent for the time being before the motor gets torn into or swapped