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1986 mustang no start

  • Thread starter Thread starter foxyjamss221
  • Start date Start date Oct 11, 2025
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foxyjamss221

Member
Oct 11, 2025
2
1
13
Woodstock ga
Oct 11, 2025
#1
  • Oct 11, 2025
  • #1
So! Hello guys I have changed the starter before I got the car and it was running basically fine, like sometimes when cold it took one or two cranks but it needed work so what do you expect. It then started to turn on and then stall unless I spammed the gas pedal to work it up. Finally it stopped starting all together-

I've taken out the CFI and cleaned everything leading to the engine including the injectors

I replaced the fuel filter, spark plugs, fuel pump, and ofc the battery but it still won't start it will crank but not turn over. I did a spark plug test by grounding it and cranking, and there was spark just not blue so maybe it's the distributor, ignition coil idk rlly. Any help would be appreciated.
 

DadLife0724

Active Member
Mar 22, 2024
263
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53
Cooperstown, PA
Oct 11, 2025
#2
  • Oct 11, 2025
  • #2
In the Fox forum, the one you posted this thread in, click the "fox 5.0 mustang tech" thread. There's a no start checklist. That oughta get ya straightened out.
 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
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Box behind Walmart
Oct 12, 2025
#3
  • Oct 12, 2025
  • #3
Post pics of the engine bay.
 

rednotch

I'd like to remain having one chocolate starfish
Founding Member
Aug 14, 2000
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south jersey
Oct 12, 2025
#4
  • Oct 12, 2025
  • #4
86 cfi would be 3.8's only if I remember right? did you try using starting fluid at all to see if it would fire? That will help pin point if its spark, fuel or something else.
 
Reactions: Noobz347
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foxyjamss221

Member
Oct 11, 2025
2
1
13
Woodstock ga
Oct 13, 2025
#5
  • Oct 13, 2025
  • #5
rednotch said:
86 cfi would be 3.8's only if I remember right? did you try using starting fluid at all to see if it would fire? That will help pin point if its spark, fuel or something else.
Click to expand...
I'm trying tonight! I can let yall know
 
Reactions: Mcmahst
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