Subaru - Outback :: 2000 - Fast Idle On Start And Severe MPG Drop
Jul 5, 2011
I have a 2000 Subaru Legacy Outback with 208,000 miles. Last Oct I had a complete tune up done on it: fluids, filters, spark plugs, etc. Ever since then, the gas mileage has dropped from getting around 390-400 miles off a full tank to 290-300 miles off a full tank. I have tried carburetor and fuel injector cleaners and nothing is working. At this same time, it also started idling at 1750 rpms every time I start it, dropping down to around 750-900 rpms after I put it in gear. The timing system was replaced about 7 months earlier. So far the repair shops can't find anything wrong. I also just had the transmission rebuilt and it's still idling fast.
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2000 Subaru Legacy Outback (or is it Outback Legacy.....I've never known)165000 milesWhite
I have this chronic and intermittent problem with my Subaru. It's been going on for years. I had it to the dealership a few time as well as other mechanics, but of course, it never misbehaves then.
Here's the problem. The car always will start when cold. Occasionally when you go somewhere, primarily short errands etc. the first stop is no problem but when you stop at the next place and come back a short while later (5-15 minutes) it will not start. It does not make a sound. Lights work. The battery is just fine. Stopping on long trips is especially problematic.
At first, it would cure itself after opening the hood, scratching your head, etc. and closing the hood. Or maybe it was slamming the door but you could depend on it starting after some hocus pocus like that. Now it seems to be getting worse. However, there is one thing that so far never fails.... you can jump it and it will fire right up. Remember, the battery is not low, but jumping works.
Actually, the battery is just about a year old. One time it died and when I couldn't get it to start after a long time I thought it was finally my chance to get a mechanic to trouble shoot it. So after towing and about $300 between troubleshooting fees and the diagnosis that the battery was shot, they were confident they had solved the problem. No such luck
I can say confidently that the battery terminal connections are clean and tight. I've checked the wire and mount on the starter too.
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I have a 2000 Outback Limited with 133,000 miles. I bought the car used and it has had to have a lot of maintenance. Most recently new head gaskets and radiator. Last weekend while doing errands, the car would not start, after sitting for around 20 minutes. The battery is less than a year old and the radio, etc, worked. I had it towed to my Subaru mechanic who checked the battery, alternator and starter, but could find nothing wrong, The car started for him each time he tried. Today, I was driving home from work, stopped somewhere for around 10 mins. and when I tried to start the car, nothing. Not even a noise. I had someone give me a jump, but that did not start the car. I let the car sit for around 45 minutes and it started right up. What is wrong with this beast?
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My 2001 L.L.Bean Edition H6-3.0 is losing power & MPG on the fwy. Sometimes it will feel like something is holding it back or dragging. I've checked the brake calipers and they're not sticking, changed the air filter, oil & filter, transmission fluid, and still cannot find the problem. I've overfilled the gas tank and read this can damage the charcoal canister. Will a saturated charcoal canister cause a drop in power and MPG? What should I check out next?
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My 2000 outback wagon has only 67k miles. About a month ago, the check engine light came on. I took it to an Auto Zone and although unfortunately I didn't write down the code, the person who checked the car seemed to think it was probably just a bad tank of gas. I ran through that tank of gas and filled up with premium gas. Light didn't go off until THAT tank was near empty. Filled up a third time and light remained off until tank was near empty and it came on again. It has not yet gone off. I'm not sure how many more tanks of gas I should run through! The car isn't running poorly so I thought the bad gas was a good explanation.
A side note: about 6 months ago I had to have the head gasket replaced. I argued with Subaru and got some extra work done in exchange for the head gasket payment since my car missed the recall by a few digits but I was obviously stuck with an inferior product. I'm hoping they didn't do an inferior job. Even though it was 6 months ago, it wasn't that many miles ago - you can see my the year/mileage on my car that I don't drive a lot. Does that gas explanation sound reasonable? Anything about a head gasket related?
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About a month back my wife and I were on our way home from dinner and when we exited the interstate I heard an awful rubbing sound coming from the engine compartment. I wasn't quite sure what it was or how to describe it. I was concerned it was the timing belt right away. I limped it home sputtering and misfiring and listened for a moment before shutting it down.
The next day I checked all the accessories. Nothing wrong there, so I realized it must have been the timing belt. I began striping the rest down and confronted carnage. One of the bearings had gone on an idler pulley and the gear was riding the bolt. the belt had moved out of position and began to cut into the backside of the plastic cover. By some miracle it hadn't completely snapped or jumped timing.
I replaced all pulleys, the tensioner, the water pump, and the belt. After my buddy and I got it back together it seemed fine aside from a slightly rough-ish idle for a day or two, but then the misfire got quite bad. I chugged it up to my wife's parent's place. We borrowed a car from them, and then I went into repair mode again. I reasoned that perhaps the plugs had fouled when the belt was messed up initially, so I replaced the plugs. Didn't have wires on hand. Fired it back up. No bueno. Same misfire and chugging. Still borderline driveable.
So, I tore down the belt again to find that the intake cam on the passenger side was about 5 teeth off. Seemed further out than my friend and I would have left it, but I got it lined back up within a tooth and put it back together. Still no good. Still misfiring. So we tried it a couple more times. One of us started to doubt the cause, but I talked him to try with one more reset. This time I wanted to get everything absolutely perfectly lined up. We did. I fired it up. Silky smooth, ran like a sewing machine. Put it back together and everything seemed fine. For a day or two.
The misfiring began again. It bothered me that I hadn't managed to take care of the plug wires. I had the codes pulled and I had a steady misfire on ... I think it was 4. I replaced the wires on that side and everything was back to normal. Silky smooth operation. For a couple days.
I was on my way to work and had to brake very hard to avoid an accident. Like from 70 to 0 wheel-lockingly hard. Immediately a misfire at idle returned. Doesn't seem to be an issue when not at idle, but it's hard to say. I guessed that it was the plug wires from the other side. I replaced those today, gave it an oil change. Still misfiring. I dropped by autozone. Codes read - misfire everywhere but 3, and I'm guessing that maybe a sensor for 3 is just messed up. The coil pack looked suspect, and I thought I'd do the PCV valve while I was at it. After replacing both the misfires continue.
I've yanked the battery to encourage the computer to reset. I'm at a loss at the moment. The only think I can guess is that perhaps my new tensioner is poop and I've jumped a tooth or two somewhere? I'm looking for guesses and wild theories here. Anything to try. I'm going to reconnect the battery shortly and if it's still misfiring, which I'm assuming it will be, I'm going to have codes pulled again.
Just to head this one off at the pass - I believe I got extremely lucky and did not damage the valves with the timing belt nonsense. Compression seems good, and I doubt it would have ran as well as it did as long as it did with valve damage.
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I have a 2006 Outback XT, which recently started shuddering (like it wants to stall) at idle... At least that's how it started. I noticed it for a few weeks but with no check-engine light, and no error codes cropping up, I kind of ignored it. It then started to stall at idle. Took it to my local guy, who checked all the simple stuff: vacuum hoses, mass air flow sensor, he even removed and cleaned up the throttle body. But the problem persists.
I guess the part that really has me puzzled is the lack of a check-engine light or an error code. With how computer-regulated cars are nowadays, I'm baffled as to how this isn't causing some alarm to go off.
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While driving my 2000 Subaru Outback (197,000 miles) the speedometer, tachometer stopped working but the fuel and temp gauges were working fine. The transmission felt like it was slipping. When I used the brakes they were grabby, jerky and made a loud clunk. The engine began sputtering and I was barely able to keep it going as I tried to get home. At stop lights I had to put the car in neutral and rev the engine. We also noticed that while the engine was running the power windows were very slow to open and close and the turn signals and emergency flashers did not work at all. Now the car is in the driveway dead as a doornail and the key stuck in the ignition.
The battery is one year old and the alternator is the original. The fuel tank is 3/4 full. I bought the car new in 2000. What the problem could be?
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1997 Subaru SVX (Alcyone) LSi, 3.3L H6 engine.
My SVX was driven from Denver to Las Vegas, NV and it developed an odd habit where the RPMs would start to oscillate while on cruise control. I had to disengage the cruise control to get the oscillations to stop. Three days later I was driving the SVX to work and the RPMs started oscillating at idle and the car started running rough and it died.
These things have all been replaced with OEM grade parts: Spark plugs, electric fuel pump & strainer & fuel filter, Mass Air Flow sensor, new air filter and fuses.
The car starts up fine but after a few seconds the RPMs begin to oscillate. Then the car tries to recover, the idle becomes rough, and the the RPMs drop very low and the engine shuts off.
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Sometimes my car, a 2000 Subaru Outback Wagon with 115k miles, when stopped in drive will slip into neutral. It is an automatic and is still in drive when this happens. It does not happen on a consistent basis. It seems to happen more often when it is either wet outside or after it has rained. However, it does happen when the sun is shining brightly too. Sometimes when I am driving, there does feel as though there is a delay when I press on the gas almost as though it needed to kick itself into gear. Any thoughts on what this might be and why this is happening? It has been happening since last fall.
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I was driving my 2000 Subaru Outback on Friday evening and it completely died at a red light. Hazards wouldn't turn on, couldn't move the car into N or P, couldn't get the key out of the ignition. Because we were blocking an intersection, the police went to a nearby shop and had them tow it there. This is a shop I don't trust. What could this be, so I can be informed when these people call me back and tell me I need significant repairs?
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My 2000 Outback is shaking - forwards to backwards - when I am driving, sometimes. The car is new to me, I've only had it two weeks. My dad bought the car and did a bunch of work on it. The timing belt and water pump have been replaced, also the spark plugs and wires. We changed the fuel pump and filter and adjusted the idle? (not exactly sure what that is, but my mechanic checked it and said it was idling normally). My dad is a mechanic, but he lives far away from me and he fixed everything he could think of before I brought the car home, so we are at a loss as to what else could be causing the car to shake this way.
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My Subaru 2000 Outback is dying occasionally when I come to a stop. It will stutter and die. I can restart it and everything is fine. It does not happen everytime, but happens more when I come to stop quickly, less when I come to a gradual stop. What is this?
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I've got a 2000 Subaru outback with 170k miles on it. I recently pulled a code for a bad line pressure solenoid and replaced it. About 500 miles later the oil temp sensor light started flashing so I turned the car off and when I turned the car back on it wasn't flashing and hasn't come on since. No CEL. I'm now about 2k miles after changing the line pressure solenoid and now whenever I drive over 10 or so miles my car smells like the clutch is burning. He idle is a little rough, i.e. it vibrates a little more than usual and the car is a little slow to respond when I gas it.
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Subie was driving fine...drove it on highway and went to park and NO reverse. At first, I couldn't shift into park either, but then I was able to shift in park. I can move the gear to reverse, but nothing happens (engine just revs and car wants to roll forward as it is on slight incline. Hubby checked trans fluid and it was a bit low, added fluid, but still no reverse.
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My 2000 Subaru Outback automatic, with 95,000 miles is intermittently stalling. No check engine light, no sputtering, engine temperature & oil pressure fine; it will just be running and then it isn't. It has happened with a 1/4 tank gas and with a full tank of gas. Primarily it has happened after driving around on a hot day, with some highway driving, city driving, running errands- so stopping for a while, then when I head home and gain altitude (another 2000-2500 ft), it will stall when I take my foot off of the accelerator to make a left turn, or go around a blind right curve, but not every time. When it has stalled once, it tends to repeatedly stall when I take my foot off of the gas.
It always starts right back up again with no problem. It happened once in town right after I filled up with gas, but didn't repeatedly stall after that.It has been to my mechanic 3 times and no codes come up with scan. The AF sensor (idle control valve) was replaced twice, throttle body cleaned (although not bad), crank sensor checked, fuel trim checked, wires, battery checked, hoses checked, reprogramming of ECU checked- not needed, no recalls/reflashes, nothing found. I don't want to end up stranded on a lonely mountain road with fires approaching, or getting broadsided when it stalls in a left turn.
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my friends mechanic is telling him his 2000 outback (2.5 4 cyl) has a blown head gasket. there is NO water leaking/seeping out from anywhere outside the motor AND there is NO water in the crankcase motor oil. the thermostat has been replaced. the cooling fans work. I'm inclined to say it's a plugged radiator. he is considering replacing the head gasket (to the tune of $1500+) on advice of his mechanic. is it possible to have a blown head gasket and not be leaking coolant?
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I have a 2000 Subaru outback (150,000 miles). Recently after starting, the car will feel sluggish or like it's pulling. When I come to a complete stop it will shake and feel like it's about to shut off... and recently it has been shutting off. Last night I changed the spark plugs, spark plug wires, and fuel filter... after that the car was driving worse. My check engine light is on and the code is for a knock sensor. Also there was oil on my spark plugs which I believe is an idication that there is a broken or leaky gasket. I am at a loss... would the leaky or broken gasket cause car the run sluggish and stall, would a faulty knock sensor cause the the same? I also need to get my rotors changed but I don't think that would cause any of this.
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I have a 2000 Subaru Outback. The check engine light has been coming off and on for the past couple weeks, but today the light started flashing. The car is running a little funny - not accelerating well and shaking when I start it. What's wrong with it?
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my 2000 Subaru Outback Manual Transmission is stuck in neutral. I thought it might be the clutch so I pulled it out of the car and checked the clutch linkage etc. With the transmission fully removed from the car the shift lever does not move at all. My question is, if the transmission is fully removed from the engine should the shift lever function?
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I have a 1996 subaru impreza outback. It is now dead. Billowing white smoke, coolant coming out of the tailpipe, terrible rocky idle and some smoke coming from the exhaust at the manifold. (assuming it cracked from the harsh idle) I'm pretty good with cars but I've never taken on a head gasket problem myself. I have time to fix it, I just don't really know if it will be worth it. Should i just replace the motor w/ a scrapyard motor? Should I take this opportunity to rebuild and upgrade? I have a crappy chevy to get me around in the meantime. Should I give it a try or just scrap it. I paid 800 bucks for this car and it has 220k miles. No major problems until now. New alt a few months back. Previous two(only two) didn't have any problems at all. I feel like it would be worth it.
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