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zakruti.com » Auto & Vehicles » South Main Auto Repair
Subaru 2. 5: No Power

Subaru 2. 5: No Power

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Rating: 4.0; Vote: 1
I have a look at a Subaru Outback 2. 5 that came in with a low power complaint. It's from the auction and the customer already replaced the catalytic converters with no success
Date: 2020-08-05

Comments and reviews: 10


Reminds me of the early 70's GM vehicles. (pre-catalytic convertor) They used a double wall exhaust pipe between the crossover and muffler. It was a good idea, but as the pipe heated up of course both would expand, but if you drove through water it would rapidly cool the outer pipe eventually the inner pipe would collapse restricting the exhaust. Now try to convince a customer his/her perfectly good looking exhaust pipe was the issue, I ended up cutting one that was collapsed just to show them.
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Hey Eric, I did my head gasket and rear main seal with the help of your head gasket vids so thanks for posting that. I have a newer Subaru now, a 2013 outback 3. 6r. Have you encountered the weird issue with the camshaft position sensor? I get an occasional check engine light with a P0346 code. After researching I found that Subaru put out a bulletin about it and there is now a shim kit available to put the cam sensor to spec. Just wanted to get your thoughts.
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At the 50 second mark I know exactly whats wrong with her. Restricted exhaust. I had the same thing a LONG time ago with a 1974 Buick Century 350ci V-8. Starts fine, put in gear hit gas falls on it's face. Barely touching the gas I could get it moving on flat and level top end 20 mph. The only difference was a whistle from the Buick along with the thrumming sound from the intake. In my case it was a crushed exhaust pipe. How that happened I'll never know.
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I had made a point to watch this video should my 2. 5L Subaru ever have this complaint. Strangely, 3 weeks ago someone nailed me in the back end in stop and go traffic knocking me under the lifted pickup in front of me sheering off most of the top of the engine, resulting in a total loss. Now, I have little reason to watch, but, I will.
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bah, forgot about the downstream cat on those. the flange/bolts up front look new, I'd just unbolt it there and test run/shop and shop air/blower towards the rear and maybe reverse in tail pipe to see what flies out the front tube lol
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I ran across the same symptoms last week on a 07 Pontiac GP. GT. Turns out the chipmunks had filled the mufflers up with several hundred acorns. I cut off both mufflers and dumped them out. Welded them back on. PITA.
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I bet it was a misfire that killed the cats. Usually it takes out both cats when there is a misfire for long periods of driving on it. Even a engine that is spitting out oil due to blowby ruins cats.
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Eric we received the HOODIE. It's very soft! But it doesn't compare to the champion sweatshirt you wear! It's much thinner and not as warm. Why don't you sell the champions?
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Eric hello from NYC. WHY didnt you just disconnect the exhaust at the flange before the rear catalytic converter instead of drilling the 2holes? Thanks Chris
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Good test Eric O. besides using the touch test for the hot pipe a vac gauge and some rubber hose is a good check to see for sure where the blockage is.
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