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5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.


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Old 02-06-2014, 09:23 PM   #1
Join Date: Feb 2013
Vehicle: 1986
Location: California
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i just got a 86 5.0 mustang i dont know what to start on i got transmission oil leaking and motor oil leaking when i drive for 30 min and i turn off my car it wont turn on i change the startder the coil new battery and my rpms r up and down when i start the car
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Old 02-07-2014, 08:35 AM   #2
88 orangepeel notch
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Start with using periods at the end of your sentences. It's easier for us to follow your post when it's not one big paragraph. Proper abbreviation is your friend.

Use the search feature on this forum and you'll find tons of info on your "no start" and "surging idle".

Last edited by 88 orangepeel notch; 02-07-2014 at 08:40 AM.
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Old 02-08-2014, 12:30 AM   #3
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See if your starter is getting too hot from the headers/ exhaust manifold.

Also, check the timing. If it's too advanced, it will be a hard start too.
66 coupe, 347, 10.5:1, T5, Trick Flow heads, Stealth Intake, Atomic EFI, Centerforce Clutch, Headman Headers, Ford Motorsports X303 Cam, 8.8 explorer rear end .373 gears, Cobra 4 wheel disc brakes, 17" TT2's
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