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Type: Posts; User: fishga

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    Hot Box/Vapor Lock

    I have a 94 Sunsport with the 5.8 Pro Boss 351 Windsor engine. I continue to have the "Hot Box/Vapor Lock" starting issue when the boat sits for any length of time after being run. I am using...
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    94 Sunsport Trailer Issues

    I've had my 94 Sunsport for about 10 years and I continue to have issues loading the boat back onto the trailer. The guides are too far apart to keep the boat from floating to one side or the other....
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    Replacement Nav Light

    My white 360 nav light disappeared in my old mechanic's shop and I seem to be having problems locating a replacement. The Supra uses a three pin base. I tried one with a two pin base and one dummy...
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    Mass Air Flow Sensor for PCM Pro Boss 5.8

    I've had starting problems on my 1994 Supra with the Pro Boss 5.8L EFI for several years now. Latest tip was to replace the Mass Air Flow sensor. While the engine block is a Ford, the sensor is a...
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    Thanks for the reply. I've been talking to Vince...

    Thanks for the reply. I've been talking to Vince and this one has him stumped too. Yes, it is the PCM Pro-Tec electronic ignition and fuel injection. Not sure at this point whether i want to put...
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    94 Sunsport Continuing Issues

    We continue to have issues with our 94 Sunsport 5.8L Pro Boss. For the past 6 years we have had what sounds like a lifter tick. Replacing the lifters helped a bit but not much. Hate to have to...
  7. So the problems keep getting worse. Bypassing...

    So the problems keep getting worse. Bypassing the oil pressure switch did allow starting but now the engine coughs and misses badly when it reaches 1800 RPM. Mechanic thinks the ProTec ignition is...
  8. I think we have a solution. There is an oil...

    I think we have a solution. There is an oil pressure sensor that allows the pumps to run for 15 seconds during starting. If it doesn't sense pressure indicating no start, it shuts down the fuel...
  9. thanks! Will check out next time down at...

    thanks! Will check out next time down at lake......
  10. yes. new filter when we got the two new fuel...

    yes. new filter when we got the two new fuel pumps. filter is low on the port side of the engine. had dealer do it.
  11. 1994 Supra Sunsport 5.8 Pro Boss Starting Problems

    I have a 1994 Supra Sunsport with a 5.8 Pro Boss. I am having terrible starting issues. Upon launch, boat starts but is very hard to start. After it starts it will run fine. After it shuts down...
  12. 1994 Supra Sunsport/Pro Boss 300 Fuel Problem

    I have a 1994 Supra Sunsport with a Pro Boss 300 engine (351 Ford). We have experienced intermittent fuel flow issues lately (three times the last four outings). After sitting for a period of time,...
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    1994 Supra Sunsport Owners Manual

    Hi,

    We purchased a used 1994 Supra Sunsport. I have the engine manual but no owners manual. The factory says the manuals for that period were lost in a fire. Does anyone have one they could...
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