I came out to my car to go to work and it sounds like a Mack truck idling roughly. I'm trying to get a hold of my mechanic to confirm the problem before calling the police and AAA and my insurance. He hasn't called back, so I'm dead in the water sitting in my car.
View 19 RepliesI have a 2004 Prius with 196k on it. Over the past 3 months, I have had the P0505 CEL come on about 3 times. After looking over everything and not noticing it running differently, I have cleared the code and kept going. The CEL stays off for a 3-4 weeks, then comes back on.
Yesterday, the light came on and was accompanied by a rougher idle. I checked the code and the only one shown is P0505 reads as Idle Air Control System. I removed the airbox and cleaned the MAF sensor with MAF spray and cleaned the throttle body valve with throttle body cleaner spray. They were both dirty, but didn't seem too bad.
I just bought my first Prius, a used 2009. So far I like it very much. I just have one concern: The engine seems to run roughly, especially when it's idling and when it goes up to about 45mph. I'm not sure if this is normal for a hybrid and I'm just not used to it or if it indicates a problem. The problem persists even after it's warmed up.
View 17 RepliesI posted earlier about my car idling roughly, the dealership is now saying it may be my engine or transmission mounts. I have a 2002 Passat wagon with 41500 miles.
View 2 RepliesI recently had $1600+ of work done on my 2005 Mazda 3 (L4 2.0L). R&R Head Gasket and Thermostat and Coolant Temperature sensor replaced. Since then it's been idling roughly. This was NOT occurring prior to the work. Mechanic says it needs a couple of weeks to "sync"? Does this makes sense? I'm wondering if they did something wrong to cause the problem.
View 9 RepliesI recently pulled the head gaskets on my '98 RAM 1500's 360 Magnum and after two weeks of waiting on the machine shop I've put everything back in and to torque specs. After a battle with the starter ending in pulling all the shims I painstakingly marked I got it to fire up. But, it is now idling roughly. I burped the coolant system, checked the oil level and removed some as it was slightly overfilled.
I also had an exhaust leak so I checked torque specs on the exhaust manifold. All of this worked marginally but when I felt comfortable moving the vehicle I found that in gear with the throttle open it would sputter, idling it moves along just fine. The engine is pulling air weakly through the filter and I noticed it is blowing a little white smoke when given gas. My OBD2 reader doesn't pull up any codes, I'm at my wits end.
I had an engine transplant (JDM) and am now getting P0300, P0301, P0302 and P0302 OBD2 codes with my Check Engine light. These are all cylinder misfire codes. A post on Google suggested these may be due to a leaking intake manifold gasket and suggested a replacement. My 2001 Celica GT is stalling out from standstill, idling roughly and hesitating.
View 8 RepliesI have 2006 Subaru Forester that is idling roughly. 90k – oil change every 3k miles. Per diagnostic codes I learned that the 2nd cylinder was misfiring. I replaced the coil, spark plugs, ignition wires, and an airflow sensor. Yet, my car still idles rough. The check engine light is solid and the cruise control is flashing. The idling problem only happens when stopped… after I get high rpms there is no shaking. I had someone disconnect the battery and reset the computer and the lights stayed off for about a week and idling was fine. Week later – the problem returned. I think this an electrical problem, but not sure if mechanical.
View 19 RepliesI have a 2011 Sonata GLS with 86k miles. Sometimes, like once every 2-3 days, when I start the car, nothing appears in the box that says "P, R, N, D". The transmission also acts very strange. I often don't notice the blank box when I start the car, but immediately notice it when I put it in reverse or drive. There is an awful "clunk" from the transmission, and the car drives like I'm driving it through 6 inches of mud. I stop, put it in park, restart the car, the problem is gone.
The dealer said if it is a problem with the shift lever, that is not covered under the drivetrain warranty. I really don't have the money for the dealer to do expensive diagnostics/repair.
My friend just bought a 2008 F150 5.4 110k, it ran great all day during all of the test drives, after he gets it home it has started acting up. Most of the time it runs great, but sometimes when you stop the truck the idle will drop down and the truck sounds like it is going to die but so far it hasn't actually died, it starts knocking really badly and runs very rough. If you let it keep running like that it sets P0340. If you rev the truck up it cleans up and sounds fine again and it will even drop back down to a clean idle most of the time. I swapped the cam sensors because it was easy and just to see and it didn't make a difference, I was hoping after switching the sensors the code would switch to the other head but it didn't.
View 14 RepliesWe have two 2000 Echos with 125,000 and 130,000 miles on them. We took my husband's Echo into the shop because it died when idling, and then it started running rough and stumbling. Also needed an alignment. They fixed it by replacing the idle sensor, the mass air flow sensor, and worked on the valve train. They said they couldn't do the alignment because the control arms needed to be replaced due to the bushings. A week before his car went into the shop, my car started running rough and stumbling. So I took it in when I picked his car up. Same diagnosis except for the idle. Is it reasonable for BOTH to need all this work at the same approx. mileage?
View 5 RepliesIn the Car Talk column on 1/3/2016, it sounds like Lynnette's 1991 Honda Civic wagon was experiencing very similar symptoms to my wife's 2001 Honda Odyssey (189,000 mi) a few months ago. Rough idle, engine almost dies sometimes at stops, groans during acceleration. Additionally, accelerating between 40-60 mph our Honda would feel like it was "loading up," running rich or in the wrong gear climbing hills. I replaced the idle air control valve, which fixed the rough idle but not the other symptoms. Turned out I needed to reset (power cycle) the ECM and go through a curb idle/rev warm-up procedure so it would relearn the throttle position sensor's operating range after replacing the IAC valve. I disconnected the battery, removed and reinserted the hazard fuse, then reconnected the battery. Then from a cold start held the throttle at 3000 rpm until the engine warmed up to normal or the electric fans kicked on. Since then it's back to smooth, strong acceleration we expect from the Honda we love.
View 1 RepliesSo I got a 2008 model, only owner. It has 107K miles. I've noticed something the last couple months now. When I park the car in the garage after coming home from work it has a full charge, about 3 bars below top, it's at the max of the blue color.
When I start the car in the morning it still displays the same level. But after driving down the road about 3 blocks it seems to update slowly and drops the level, sometimes down to the brown, about 3 bars high. The car will run rough for a while almost every morning now since it's not using the hybrid battery to smooth things out.
Ever since owning the car I've noticed it can run rough sometimes normally, like when you're at a train crossing and the battery drops to 2 or 3 and the engine powers on to charge it up a bit. When I drive away you hear the engine a lot louder than usual as it seems to be running on engine only until the hybrid battery gets sufficiently charged and you feel a lack of power as you accelerate.
I have a 2009 Scion xD and when I am idling in D or P, my car sounds like a diesel engine. It makes this propeller kind of sound on the driver side and it is worse when I am stopped or idling, but does not go away when I am driving. It has about 76,000 miles and I moved from AZ to CA, not that I think that makes much of a difference, but the high heat in AZ can cause problems for cars. The heater core went out in the fall of last year and I just had all 4 struts replaced. I really don’t want to have to spend too much more on the car to be honest and hope this is just a simple issue.
View 1 RepliesI have a 3.6 4motion and recently after i started it up just now too, it made a diesel like weird sound, and the RPM revved up to like 3500 then went back to idling.
View 4 RepliesPrius has taken on a new habit. When making turns at any respectable speed, there's a very noticeable knocking sound. I've had the windows rolled down and can't tell whether it's coming from the right side or the left. I'm pretty sure it's coming from the front.
I just put him up on blocks and rolled under to check out the front suspension, turning mechanism and anything else I can see. It wasn't long before I realized what I'm looking at nor am I likely to recognize any problems if I saw it. Having said that, nothing looked broken or dangling.
He's due for a 100,000 mile check-up. Since I'm heading to the dealership, it would be easy for me to have them look at it.
07 Prius 140k miles. Flushed brakes at 132k miles with techstream directions [URL] ...... Follow the path without actuator or master cylinder removal. Went smoothly, no funny noises or codes after.
Brakes making multiple clicking / pump type of noise within last couple of months under these situations.
1. when nearing a stop
2. crawling along slowly with brakes on
3. backing up which is like #2
Braking force is fine and linear response. Brake fluid reservoir level is good. I'm thinking flushing it again.
I'm a new Prius owner (<1 month) and have a hopefully easy problem to solve.
View 7 RepliesI took my 2007 to the dealer yesterday to have spark plugs replaced and both coolants drained and filled. They did this in less than 2 hours. After the service, as I started driving away, I heard very loud gurgling sounds indicating that there was air in the system. When I stopped at a light, the gas engine did not shut off like it normally should, and the entire car was shuddering. When I accelerated again, I got a bunch of emergency lights and the gas engine shut off. I pulled over and turned the car off. When I turned it back on, the only remaining warning lights were the red triangle of death and check engine light. (I didn't see which other lights came on, as I was frantically trying to pull over safely). I managed to limp back to the dealer and I'm awaiting their call.
View 20 RepliesBefore I start, when I drive, and after I shut down (for 10 minutes) my 06 sounds like a machine gun is firing in the far distance, also a buzzing noise is happening. This continues when I drive the car as well. It drives me nuts!! See video for better representation of what I am talking about. Maybe it's the pump for the coolant pre tank but I don't see how this could be normal. This is my first prius, other than this noise the car is excellent.
View 8 RepliesI have an exhaust leak that has gotten worse and is quite loud now. I have been under the car and a mechanic just checked what he could without a lift and didn't find any leaks. Yesterday, I had it up on ramps and looked under and think the sound is coming from where a heat shield is. When I'm in the car the noise sounds like it's slightly in front of me.
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