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I have a 1997 Subaru Legacy that has been overheating due to a broken water pump. After replacing the water pump my check engine light is now coming on, and when I accelerate through the lower gears it bogs down really badly and shudders terribly. When it bogs down the check engine light starts to flash. I'm worried the overheating has caused damage to the head gasket and am looking for some advice.

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  • 36 Answers

If the water pump is turned by the timing belt it probably was put back together out of time.

Posted on Nov 08, 2014

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Posted on Jan 02, 2017

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SOURCE: 1997 subaru outback legacy overheating

I've had the same problem all year. I've had four different mechanics look at this car - 97 legacy with 2.5. I've had the coolant seals replaced, the radiator cap, the thermostat, the water pump - all to no avail. I've realized now that it only overheats shortly after running sustained high rpm's. Recently the last mechanic mentioned the bleeder valve (I didn't know it had one and think maybe he didn't know either - not a subaru mechanic). Recently it overheated again (again sustained high rpm's - apparently more prone to produce air in the system), I sat the vehicle on an incline (raising the bleeder valve to be the highest point) and let the car warm up and run for half an hour. Now 300 miles and no overheat. I went through alot with this car to get to this point. Unbelievable.

Posted on Dec 26, 2008

SOURCE: 1997 subaru outback legacy overheating

I hate to tell you this but the guy isn't returning your calls because the head gasket is blown and he probably knew it.
As for the 1990... have you checked the water pump for leaks? (front/ driver's side on the bottom of the engine) My guess is that it's faulty and unfortunately, it's behind the timing belt.
Both of these repairs will be a pretty penny.
Good luck!

Posted on Jan 05, 2009

  • 1 Answer

SOURCE: Overheat on my 1997 Subaru Legacy GT

Sorry if this might break your heart. I have '98 Outback which is the same 1st generation DOHC 2.5 engine. These are common head gasket problem (I'd say 100% of every engine sooner or later) once you have had your car overheated.

You will not get this comfirmed by just have your mech check the compression on the cylinder because we call it phantom leak (internal leak which can be confirmed with hydrocarbon in coolant). And then you will end up replace every other thing before you could reach the source of problem.

Other signs of this issue are as following: random overheating after freeway or uphills drive, bubbles in coolant overflow tank, oil residue in coolant overflow tank, bubble nioses from the a/c vent.

You're looking at $1000-1500 repair by independent mech as they have to pull engine out to fix the problem. I had mine fixed two weeks ago and now my baby is running like a champ.

google for "Subaru head gasket problem"

Posted on Feb 10, 2009

mcgyver468
  • 710 Answers

SOURCE: Cause of noise in front differential of 1997 Subaru Legacy Outback.

there is a plug on the shaft-side of the differential. Using a ratchet remove the plug and with the engine OFF, stick your finger inside the hole and you should get fluid just below the threads of where the plug goes in.

Posted on Apr 24, 2009

  • 73 Answers

SOURCE: bogs down upon acceleration

You have coil over spark plug ignition and one of your coils is bad.You need to find the bad coil and replace it.

Posted on Aug 27, 2009

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I hate to tell you this but the guy isn't returning your calls because the head gasket is blown and he probably knew it.
As for the 1990... have you checked the water pump for leaks? (front/ driver's side on the bottom of the engine) My guess is that it's faulty and unfortunately, it's behind the timing belt.
Both of these repairs will be a pretty penny.
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I've had the same problem all year. I've had four different mechanics look at this car - 97 legacy with 2.5. I've had the coolant seals replaced, the radiator cap, the thermostat, the water pump - all to no avail. I've realized now that it only overheats shortly after running sustained high rpm's. Recently the last mechanic mentioned the bleeder valve (I didn't know it had one and think maybe he didn't know either - not a subaru mechanic). Recently it overheated again (again sustained high rpm's - apparently more prone to produce air in the system), I sat the vehicle on an incline (raising the bleeder valve to be the highest point) and let the car warm up and run for half an hour. Now 300 miles and no overheat. I went through alot with this car to get to this point. Unbelievable.

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