Engine Stalling and then no start? 86 5.0

N

nchapman_42

New Member

Sep 17, 2021

4

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1

Missouri

Sep 17, 2021

#1

• Sep 17, 2021

• #1

Hey Guys! I have a 1986 Mustang LX 5.0. I will drive the car around and it will drive just fine and then about 10 minutes into the drive the car will just shut off and won't start. It will crank but the RPM gauge stays stuck on 0 and it will just crank forever. It also does it when it is just idling in the driveway. It will turn back on after I let it sit for a couple of hours. I have brand new plugs, wires, distributor cap and rotor, ignition coil, all-new engine sensors, new ignition switch, and key cylinder. When I run the codes all I get is a charcoal canister code(its not hooked up currently) and a RPM out of range/too low. I've tried just about everything and am starting to get annoyed with it. Any suggestions or fixes? Thanks!

 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor

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Jan 4, 1985

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Sep 17, 2021

#2

• Sep 17, 2021

• #2

I have a dollar that says it's the TFI module attached to the distributor.

Who wants a piece of this bet?

 

General karthief

wonder how much it would cost to ship you a pair

Mod Dude

Aug 25, 2016

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Sep 17, 2021

#3

• Sep 17, 2021

• #3

I can't find the 'pick me' emogi
I agree with noobz and I'll add try to find a motorcraft or standard brand, I keep an extra around just for testing.
Come to think of it someone around here has a tfi tester write up.

 

Last edited: Sep 17, 2021

N

nchapman_42

New Member

Sep 17, 2021

4

0

1

Missouri

Sep 17, 2021

#4

• Sep 17, 2021

• #4

I’ll bet on myself. I didn’t even think about that… I’m new to foxbodies going to give that a shot and see what it does.

Noobz347 said:

I have a dollar that says it's the TFI module attached to the distributor.

Who wants a piece of this bet

Click to expand...

 

N

nchapman_42

New Member

Sep 17, 2021

4

0

1

Missouri

Sep 17, 2021

#5

• Sep 17, 2021

• #5

General karthief said:

I can't find the 'pick me' emogi
I agree with noobz and I'll add try to find a motorcraft or standard brand, I keep an extra around just for testing.
Come to think of it someone around here has a tfi tester write up.

Click to expand...

Would you recommend MSD?

 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor

Admin Dude

Jan 4, 1985

43,277

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Sep 17, 2021

#6

• Sep 17, 2021

• #6

nchapman_42 said:

Would you recommend MSD?

Click to expand...

Nope

 

manicmechanic007

5 Year Member

Sep 26, 2017

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143

Roy, Utah

Sep 18, 2021

#7

• Sep 18, 2021

• #7

ncchapman42
TFI most common Zero rpm out of tach could be the stator
See post in other tech about running car with bad TFI

 

General karthief

wonder how much it would cost to ship you a pair

Mod Dude

Aug 25, 2016

27,990

10,618

213

polk county florida

Sep 18, 2021

#8

• Sep 18, 2021

• #8

nchapman_42 said:

Would you recommend MSD?

Click to expand...

Nope twice.

 

Reactions: slow84lx

manicmechanic007

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#9

• Sep 18, 2021

• #9

Damn straight yes to the MSD

 

Reactions: Noobz347

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor

Admin Dude

Jan 4, 1985

43,277

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Sep 18, 2021

#10

• Sep 18, 2021

• #10

manicmechanic007 said:

Damn straight yes to the MSD

Click to expand...

 

Reactions: manicmechanic007

manicmechanic007

5 Year Member

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Sep 18, 2021

#11

• Sep 18, 2021

• #11

I run a duraspark on mine
It has always been reliable and hacks the mission
My friend has a 76 Cobra
I am running that dist
He is running a real expensive MSD
I used to joke with him that he mad more money in his ignition system than I had in my car
Used to plat tricks on people
Other friend took his rotor out of the MSD
Almost blew the sob up
Its all fun and games until somebodies ride blows up

 

manicmechanic007

5 Year Member

Sep 26, 2017

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Roy, Utah

Sep 18, 2021

#12

• Sep 18, 2021

• #12

What are you running Noobz347?
Explain your dislike for MSD?

 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor

Admin Dude

Jan 4, 1985

43,277

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Sep 18, 2021

#13

• Sep 18, 2021

• #13

MSD is just another component failure waiting to happen.

When I lost my mind and overbuilt my engine combo (including boost), I went with a rather simple device that keeps my OEM coil saturated at a preset voltage. My only other non-stock ignition components are the Jacobs wires.

The OEM ignition systems in our cars are pretty damned good. The electrical system is our cars, not so much hence, the coil saturation.

 

Reactions: slow84lx

General karthief

wonder how much it would cost to ship you a pair

Mod Dude

Aug 25, 2016

27,990

10,618

213

polk county florida

Sep 18, 2021

#14

• Sep 18, 2021

• #14

MSD 'cause 'race car'
Look, there are a bunch of threads here someplace where the MSD box did not play well with the ford computer, and frankly it's not needed.

 

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KRUISR

10 Year Member

Apr 16, 2015

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Sep 26, 2021

#15

• Sep 26, 2021

• #15

nchapman_42 ... when the car stalls and won't start, do you hear the fuel pump prime when you turn the key? If not, check fuel pump relay and/or connector in driver kick panel that fuel pump power runs through.