Question about 1988 Subaru GL-10

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HELP 86 GL-10 /getting hot

1986 gl-10 turbo its getting hot so i thought the thermostate was sticking so i took it out and put a new one in but its still gettin hot i dont know wat else to do help

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  • scott Sep 28, 2012

    well if keep on over heating you can check heatercore waterpump make sure no kinks in radiator so the fluids can feed through lines good

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This can be a slipping belt, a worn out water pump, a damage fan or the worst of all a burnt cylinder head gasket. Turbos running at high pressures tend to blow the cylinder head gaskets. Also check the radiator.

Posted on Jul 05, 2008

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I have a 1987 Subaru gl-10 turbo 4wd wagon that recently started smoking when i get off the hwy, curious what could be the problem. Please help


Two things could be the problem. Seals within the turbo can wear and when pressure within the turbo lowers, as when you exit the freeway, the oil pressure pushes oil into the turbo either burning it in the combustion chambers or burning it in the hot exhaust stream. Also the valve seals can be worn and the same thing as the turbo seals happens

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I have a 1986 Subaru GL 10 Turbo wagon and it loses power at higher RPM. It acts like it's not getting enough fuel/air. I replaced the fuel filter and still have this problem.


Start simple. Check that all of your spark plug wires are securely attached. Consider testing or replacing the coil pack. It can also be a bad MAP sensor.

Can you drive to a local auto parts store and get a free code reading? That might help give you an idea what is wrong.

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Also i am getting a wide open throttle switch code on the 1986 gl-10 turbo, what is this?


Possible Throttle Position Sensor failure impending..Good luck

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'88 Subaru GL AWD Turbo, Shift on the fly wagon, that will sometimes start and sometimes not. There are also power surges. I put a new cap on her and new wires and was excited that she had more...


First try a new fuel filter and check your air filter. Sometimes the ignition relay on those is intermittent too. You may want to check the timing also. It is ok to ****** the timing a couple of degrees and see if it runs better. The turbos on those cars can have issues too. take care and good luck.

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1986 Subaru GL 4 Door Sedan problem: Shuts down after fifteen minutes of driving. Let sit for 1hr restarts normal for another 15 min.Temp. Normal gas meter always at more thn half Opinions heard Fuel...


Fuel pump heats up and malfunctions??? HaHa that's a good one. Tell the dope that told you that, I said the fuel pump is only going to get as hot as the fuel it is sitting in....or at least, lets hope so, unless you like to see bombs go off!

The best advice I can give you is this:
1. Check to see if there are any fault codes in your computer. (On an '86 Subaru, the computer might not be very smart, but check it anyway.)

2. If there are no codes, run the engine untill it stalls, then pull one of the spark plugs and see if there is any spark when you try to start it.

3. If it has spark, then you should check to see if it is getting fuel.

You have to find out which system is failing (Spark or Fuel) before you can even guess what is causing the problem.

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Where is the fuel pump located on a 1984 subaru Gl ?


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I have the same problem with my 86 GL 4WD. One day it started to turn, and then lost all power. I couldn't even turn on the lights. I have played with the ignition switch wires, and gotten it to fire. I think there may be a short somewhere in the switch or the wires to the harness, but I have not isolated it yet. You might check your ignition switch and wiring...

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