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  1. #1

    Default 86 Capri 5.0 still having fuel issues

    I am still having fuel issues that I can't figure out. I can drive the car around, getting it normal running temp, and when I shut it off and try to restart it, it will act like it just ran out of fuel. It will not start unless I wait the next day or break the fuel line apart and then it will start. If I run it for less than 5 minutes or so, I can restart it with no issues. Only wont restart after it is good and warm. Anybody have any ideas?

    Thanks
    1986 ACS McLaren Capri
    1971 Mustang
    1968 F100

  2. #2
    FEP Power Member
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    Are you sure it’s not electrical like the TFI getting hot? Check your fuel pressure with a gauge.
    Fox Body/3rd Gen MCA Gold Card Judge
    84 SVO 24K miles, 85 Mclaren Capri Vert. 84 GT Turbo Vert.
    88 Mclaren Mustang Vert 20K miles, 89 Mustang LX Sport Vert,
    03 Mach 1 7900 miles, 74 Mustang II, 69 Mustang, 67 Mustang, 07 GT500,
    14 Mustang CS/GT, 15 F150 FTX Tuscany, 16 F250 Crewcab, 67 Tbird 47K miles

  3. #3

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    I am planning to check the fuel pressure, but I have to get a new fuel line. The one on the car does not have a Schrader valve to check the pressure.
    1986 ACS McLaren Capri
    1971 Mustang
    1968 F100

  4. #4
    FEP Power Member Broncojunkie's Avatar
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    Jan 2015
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    I thought the efi cars all had schrader valves. Is it a custom fuel rail or what?

  5. #5

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    Quote Originally Posted by Broncojunkie View Post
    I thought the efi cars all had schrader valves. Is it a custom fuel rail or what?
    Not sure, but there is no valve anyplace on the line (which I thought was very strange). It looks like a stock Ford fuel line.
    1986 ACS McLaren Capri
    1971 Mustang
    1968 F100

  6. #6
    FEP Power Member
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    San Mateo, CA
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    Not sure about 5.0. The 84 2.3 has the Schrader valve up by the wiper motor.
    Fox Body/3rd Gen MCA Gold Card Judge
    84 SVO 24K miles, 85 Mclaren Capri Vert. 84 GT Turbo Vert.
    88 Mclaren Mustang Vert 20K miles, 89 Mustang LX Sport Vert,
    03 Mach 1 7900 miles, 74 Mustang II, 69 Mustang, 67 Mustang, 07 GT500,
    14 Mustang CS/GT, 15 F150 FTX Tuscany, 16 F250 Crewcab, 67 Tbird 47K miles

  7. #7

    Default

    The time it takes to crack the line may be enough to cool the TFI, but doesn't the TFI issue cause the engine to quit while running when it heats up?
    1984.5 G.T.350 5.0 CFI AOD Convertible (TRX package, loaded)
    K&N filter in a stock dual snorkel, GT40 heads, Edelbrock 3721 intake, MSD 8456 Dist., MSD 8227 coil
    Comp cams XE254H, hypereutectic pistons
    Hooker Super Comp Shorty Equal Length Headers, catted BBK H-pipe, full custom duals
    Maximum Motorsports caster/camber plates and strut tower brace, 3.73 rear, dura grip (both Yukon)
    Ford Performance Springs, Firehawk A/S 225/55r16 on LMR TRX r390 wheels (street)
    Federal 595 rs-rr 245/40r17 and 255/40r17 on OE cobra r wheels (race)
    AOD rebuilt with a 6 clutch direct drum, Koline steels stacked with 8 clutches, Kevlar band, superior shift kit, new torque converter. --Everything else stock and fully functional.

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