1978 Mercury Grand Marquis Ignition Coil and Ignition Module Replacement

1978 Mercury Grand Marquis Ignition Coil and Ignition Module Replacement

PLEASE NOTE (6-18-11) I would recommend an orginal Motorcraft or original-style Duraspark coil only. I had a problem with this Accel coil failing causing the…

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Joe Blow says:

Some have had good results mounting a heat sink to module

blackericdenice says:

Is that you real voice?

batterymaker says:

Aw, yeah! A definite improvement in performance and startup. Runs as smooth
as cream. You STILL haven’t replaced that taillight? LOL!

Duane B. says:

The Accel coil can make a difference. When the van’s engine had a “mild”
275 – 300 horsepower rebuild (RV Cam and slight bump in compression on the
350), I had an Accel HEI system. I notice after the coil upgrade that the
engine is much better at cold startup.

naterade21 says:

@retrochad ah ok and nice redneck taillight XD

WhoSaidTyler says:

Come on with that taillight already, LOL. That thing left here in
SEPTEMBER. You are starting to discover that maintaining and repairing a
collection of old vehicles takes up your entire weekend. Nice video, glad
the car is running well in it’s old age.

woodlandcammo27 says:

I need to do this with my 62 Galaxie. The start up is terrible. I just
bought it. I might have too small of cranking power. I am going through the
whole car so I might as well replace all that I can. The dbag that had the
car before me cut many wires and gauges. I think he was trying to fix a
short. I have no turn signals.

mznxb9872 says:

@retrochad Interesting to see a Frigidare A-6 compressor on a Ford product.
I thought they were exclusive to GM products but I guess not.

BBISHOPPCM's World says:

That’s one helluva relay!

GEARHEADGUY92 says:

good job man car run like a champ

Rod Beauvex says:

Does the Accel coil have any real performance gain as opposed to just a
regular new coil?

360deeman says:

Very cool I just put a new relay in my old 1955 Buick

retrochad says:

No, The A/C compressor seized up so I removed the belt.

Vintagetvs says:

Those modules were notorious for intermittent failures back in the day.

1944johndeerel says:

wow great work she starts real nice! stealing ice cube relays from your AC
unit to fix the car now thats thinking with your dipstick!

dnl5649 says:

@retrochad if your car breaks down. it isn’t the module actually going bad.
it has over heated and cuts off. my car got up to normal engine temp and
then it died, every time. they always told me your module is bad. one day
after the car died i hooked up one of the old modules that had cut out
before and she fired right up. so thats when i knew the module was in a bad
spot. i soon mounted the module under the dashboard now the car never ever
breaks down

Vintagetvs says:

They would cut out long enough to fill your muffler with raw gas, then turn
back on and blow your exhaust off! LOL

BassmasterBling says:

I suggest removing the air compresser pump and cutting all associated hoses
and pipes to make it much easier to work on the motor, and also get rid of
excess weight.

naterade21 says:

no belt for a/c ?

rulebritannia1991 says:

Did both of those to the Lincoln, but had to do the ignition moduel twice!!

rompn4x says:

You should find a set of vintage ford wheels with dog dish hubcaps for your
merc

mechanicwarrior20 says:

nice 8 pin relay.

Duane B. says:

@retrochad – If you do refurbish the car’s A/C, be sure to flush the
system. Those compressors are known to shed a lot of crap into the A/C
lines, it’s called “Black Death” due to the teflon fragments.

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