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#4385 of 19336 Outback Power Surging and Rough Deceleration
Dec 21, 2004 (9:43 pm)
My 2002 Legacy Outback, 5-speed, has had a hesitation problem since purchase, but the problem is worsening as the car approaches 24,000 miles. At cruising RPMs, with constant pedal pressure, the engine hunts for the right speed/power. Often, but not always, when accelerating the engine doesn't respond for several seconds with increased engine power--i.e., when climbing a mountain pass, I can floor the accelerator when the engine is between 3,000 and 4,000 RPM, and just as I think the engine won't be able to pull the grade without down-shifting, a surge of power occurs and the power continues until I decrease the accelerator.
Possibly related to the hesitation problem is an issue of the car decelerating roughly. Often when smoothly decreasing pedal pressure, the engine responds by what feels to be a total cut-off of the gas for an instant prior to settling in with the appropriate gas flow.
The car has also started using oil at about a quart every 2,000 miles. I mention this for I saw one post that indicated that oil consumption and hesitation could be related to a PCV Valve. Any other experience with this?
The Subaru dealer checked out the surging/ hesitation problem in the October and said on their invoice that the "engine runs as designed." They suggested that I switch brands of gas. Afterward, I did try different brands, but the engine runs the same regardless of major brand used. I have also always used at least 87 octane. It runs a little better on premium, but I feel I shouldn't have to buy the premium gas, especially at 6,000 feet elevation where I live. I also just recently tried a brand name gas treatment, but this hasn't helped.
I've scanned the messages and see that the hesitation/ deceleration problems could be caused by numerous issues: sensors, PCV valve, spark plugs, and even see where I could buy an add-on that may help (Kimoto). However, I feel this should be fixed under warranty and plan to take the car back to the dealer.
I would appreciate any help/ideas on how to present this/these problems to the Service Department so they will actually fixed it this time.
#4386 of 19336 Trouble starting '05 WRX wagon in cold weather
Dec 22, 2004 (6:09 am)
Anybody else have this problem. I have only 4,000 miles on my car and recently the weather has been very cold (0-20 degrees)and my car won't turn over unless I give it a little gas in the morning. Fuel injector frozen???????? I thought subaru was built for the northeast what gives?
#4387 of 19336 Re: Trouble starting '05 WRX wagon in cold weather [zotto]
Dec 22, 2004 (6:28 am)
Try this tomorrow:
Turn the key to the 'run' position and wait about 5 secound before proceeding to 'start'. This gives the fuel injector pump a few second to 'prime' the system. While the injector rails should hold pressure overnight, a number of people has complained that they do not. If the lines are not at about 35psi, the spray pattern into the cylinders is diminished - basically you are trying to start cold on a lean mixture rather than the intended richer settings.
Luckily, I don't seem to have this problem with my Subi, but I lived with this modified start procedure for years with an older Nissan until I got a new fuel pump.
Let us know if this helps.
#4388 of 19336 Re: Outback Power Surging and Rough Deceleration [sheenjek]
Dec 22, 2004 (6:40 am)
Sounds like a definite problem to me. Call the Subaru 1-800 number and open up a case with them. Maybe they can put pressure on the dealer to take a more careful look at the problem (or even recommend a better dealer).
#4389 of 19336 Re: Trouble starting '05 WRX wagon in cold weather [fibber2]
Dec 22, 2004 (7:37 am)
Thanks for the feedback. i'll give it a shot. I am going to run it by the dealer tomorrow as well.
#4390 of 19336 Re: Trouble starting '05 WRX wagon in cold weather [zotto]
Dec 22, 2004 (11:49 am)
Be sure to turn the key to "on" for a few seconds and let the fuel pump run to pressurize the system before turning the key to crank the motor. You will hear the pump run and then go off, it will make a whirring noise from the back of the car.
Dec 22, 2004 (9:50 pm)
I installed an exhaust tip cover when the car was fairly new. The first time I reported problem to dealer, he said "the exhaust tip was improperly installed" (too far towards the rear of car). He moved it up as the "cure". This did nothing--
Still have the tip which is installed approx. flush with end of tail pipe.
#4392 of 19336 Re: ...three on the tree - [saedave]
Dec 23, 2004 (10:52 am)
I love to know what the hp was on your Model T! And what were the brakes like? Mechanical? How many miles did those old Fords last?
#4393 of 19336 Re: 2005 LL Bean - engine surging [05beaner]
Dec 23, 2004 (10:55 am)
I've not noticed any engine surge on my '05 OB XT but I do detect a hard impact when I first engage the transmission into drive in the morning. I guess the car idles at high rpm's until warmed up.
#4394 of 19336 Re: ...three on the tree - [rwoods]
Dec 23, 2004 (2:27 pm)
If my memory serves me right, the HP rating of a Model T engine was 22 HP.