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EA82 turbo question


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12 replies to this topic

#1 88xt6joe

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Posted 13 December 2004 - 08:34 PM

I can tell my turbo is spinning but i am getting no turbo. I am not real familar with the turbo cars as of yet can anyone give me any ideas what might be going on. The car is running slugish with loss of power and bad milage. It is an 86 gl-10 turbo with 4wd auto.

thanks, Joe

#2 TheSubaruJunkie

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Posted 13 December 2004 - 08:40 PM

You can tell the turbine is spinning? But there's no boost?

How do you know its spinning?


-Brian

#3 88xt6joe

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Posted 13 December 2004 - 08:59 PM

from under the hood it sounds like it is spinning but yes no boost.

Joe

#4 TheSubaruJunkie

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Posted 13 December 2004 - 09:08 PM

At idle, your turbo wont be under much boost at all. Use a pressure guage and maybe a long hose to monitor boost while your driving. (or install a boost gauge if you can). With the car at idle, the wastegate will be open and you wont be producing much boost at all.
I believe your most likely to make full boost in 2nd and 3rd gear. I dont think your car will make full boost in 1st gear (although, im probably mistaken).

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#5 88xt6joe

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Posted 13 December 2004 - 09:10 PM

It also gets really hot going down the highway.

Joe

#6 TheSubaruJunkie

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Posted 13 December 2004 - 09:25 PM

That could be almost anything. Flush your radiator and see if that helps. But you might want to just replace the radiator if you suspect it going bad.

-Brian

#7 88xt6joe

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Posted 13 December 2004 - 09:27 PM

But i think the heat issue is because of the tubro not working properly. It never ran this way before.

Joe

#8 TheSubaruJunkie

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Posted 13 December 2004 - 09:29 PM

That might be.

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#9 NorthWet

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Posted 13 December 2004 - 09:30 PM

The wastegate wouldn't be open at idle, just not enough exhaust flow to spin the turbine fast enough to boost. Boost will be dependent on engine load and rpm... so max boost possible in first (though unlikely unless going up a grade).

Overheating is contraindicative of turbo failure... no boost would equal less power and less need to dissipate heat. Cooling system issues (radiator, fans, and thermostat) or headgasket issues are likely causes of overheating.

Possibly clogged cat-con or collapsed exhaust might cause both overheating and power loss. Also, may be slipped ignition timing.

Overheating and power loss might be coincidental and unrelated. My sparkplugs went bad within 20 miles, caused low-speed bogging and on-boost bogging. Threw in a fresh set of NGKs and I am a happy camper again.

#10 88xt6joe

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Posted 14 December 2004 - 09:27 AM

Thanks for all the replys. I am just confused by all the different things it could be. I just know I want my car to run like it did before.

Joe

#11 mdjdc

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Posted 14 December 2004 - 09:55 AM

I had the same trouble with myy wife's GL-10. I hate to be the bearer of bad news, but it sounds like you just blew a head gasket. Check your coolant and see if you have oil in the coolant. If you do, then the head gasket went. Mine went and exhibited all the symptoms you are describing. I put in a new engine and voila the car wa back to it's old self.


Good Luck

#12 NorthWet

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Posted 14 December 2004 - 09:58 AM

Another thought (while driving home at 2am) was that you may have a vacuum/boost leak in the intake system.

#13 45psi

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Posted 20 December 2004 - 08:42 PM

i've been working on the '85 gl wagon(awd turbo) i just got. I took of the intake plenum(the thing between the turbo outlet and the throttle body inlet) and the hose on the bottom was hard, cracked, and light shining through. i replaced that with 1/2 inch radiator hose and it started right up. that might be a source of vac leak. i just need to make it run on all cylinders again.




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