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Old 11-18-2020, 12:31 AM   #1
Scooby Newbie
Member#: 520347
Join Date: Nov 2020
Default Impreza 2.5i Issues- Please Help!

I have a 2007 Subaru Impreza 2.5i and have been having some problems. A few weeks ago, I was driving and suddenly the check engine light came on, the cruise light started blinking, and the temperature gauge dropped to C. I couldíve sworn I heard something small and metal clink right as it happened. I took it to the mechanic and his diagnostic machine said it was a faulty thermostat. The next week, I took it in to get the thermostat replaced. At some point he came to tell me that it wasnít a faulty thermostat, there was no thermostat at all. So he puts in the new thermostat and seal, then takes it for a road test. He came back like five minutes later and it was smoking like crazy. He says itís probably a blown head gasket. The person I bought it from removed the thermostat on purpose to mask the head gasket problem. (I bought it four months ago). They used silicone to seal the thermostat gasket to the engine. He ended up removing the thermostat and trying to redo the seal on the gasket. He also replaced the seal. Since then Iíve been told itís many different things. Thereís no white smoke, itís not leaking any fluids, my colorant level is normal, the color of the coolant is normal. When I pull out on a hill, it has trouble shifting to higher rpmís. Other than the CEL/cruise lights being on, that issue pulling out on a hill, and overheating with a thermostat, there are no other issues with it. Without the thermostat it doesnít overheat at all.

If anyone can help me figure this out Iíd be so grateful! Thank you!
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Old 01-03-2021, 02:07 PM   #2
Scooby Newbie
Member#: 520189
Join Date: Nov 2020

What are the codes? You can pull them from the odometer.

If you can't reach over 4k rpms and CRUISE light is flashing, that is limp mode. Gotta check the code to see WHY.

Might be a bad coolant temp sensor, for it to have lost reading on the gauge. Or even a damaged wire.

That is assuming your guy is correct about not being a head gasket problem.

Let us know what you find. There are a LOT of unanswered posts here, not sure why.
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