Prius (2004-09) :: Gas Motor Going On / Off Repeatedly Several Times When Stopped At Light

I've had this happen twice: I'm stopped at a light (on relatively level ground--only slight incline). My gas engine kicks off. OK, fine. As it should. But then it comes on again, maybe a second or two or maybe three or four later, while I'm still stopped. First time, it did this a few times back and forth, all while stopped, waiting for the light.

View 7 Replies

Volvo - V70 :: After Fueling Car Will Start Only After Pumping Gas Pedal Repeatedly

Have 2000 V70 station wagon, non turbo. After filling it with gas it start only after pumping the gas pedal repeatedly. Than runs rough for 30seconds or so. Than runs great till the next fill up. Removing the gas cap doesn't cause the same problem. CEL is on. Code says gas/vapor recovery system has a leak.

View 3 Replies

Ford F-150 (2004-2008) :: Occasional Starting / Cranks And Fires A Few Times

I've been having this occasional starting issue with my truck. I turn the key and the engine acts like it's going to fire up, so I let go of the key and it doesn't start. Then I try to restart it and either it cranks and fires a few times before it starts, or it fires right up and the starter grinds because I couldn't let go of the key fast enough.

I've had this problem a few times before, but lately it seems to be happening more often. It works normally 98% of the time. Maybe I'm just not letting the engine crank long enough to get it to run before letting go of the key.

Also, the spark plugs were just changed 10k miles ago and when the truck is running it runs great.

View 14 Replies

Prius V :: Engine Would Idle Then Rev Repeatedly

While driving appx. 45mph with maybe one bar above center on Eco gauge. Engine would idle then rev, idle then rev, almost like it wanted to go ev but because the heat was on it wouldn't at the last second ...

View 5 Replies

Abs - Accord :: 2003 - Pumping Sound 4 Times - ABS / TCS And Caution Lights Come On

2003 Honda Accord Coupe V6 .. My car has been making a weird sound lately. After I start the car and get it up to about 10mph it makes a "pumping" sound 4 times and the ABS, TCS, and caution lights come ON. Sometimes after I stop and start again it makes the noise again and then the three warning lights go OFF. The sound is noticeable but if the radio is on you can barely hear it. It is not louder or more quiet with the windows down.

View 2 Replies

Prius (Gen 2) :: Intermittent Pumping Noise With Vibration Near Driver Left Foot

My son just changed my oil, radiator fluid & transmission fluid on my 2007 Prius with 125,000 miles. Now it makes a fairly quiet, intermittent pumping or quiet growling/humming noise. A vibration can be felt near the driver's left foot when the noise is heard. The noise starts about a minute or two after starting the car & goes on & off, about every 30 seconds, for the entire time the car is running or driving. The car seems to drive normally, although I've only driven it a few miles, a few times. The only unusual dash light is the "maintenance required" indicator which has been on since before the fluid changes.

View 12 Replies

Prius (2004-09) :: 2005 - Battery Not Working - Dying Repeatedly At 120,000 Miles

Trying to figure out whether to fix or scrap our 2005 Prius with 193,000 miles and a mysterious 12V battery problem. What would you do in my situation?

We've had a recurring problem with the 12V accessory battery: I have replaced it myself three times. The last failure was the most mysterious, because after replacing the 12V battery for the third time, I conducted nearly daily voltage tests using the Prius' "secret" vehicle signal check. Voltage coming off of the 12V was normal, if not high the entire time in all of the Prius's various starting and ready modes. I wired up a solar panel to trickle-charge the 12V battery when we weren't around, and we plugged the 12V in at night to a trickle charger to keep the battery topped up.

Nonetheless the day came a few months after the latest replacement when we had our usual 12V failure symptoms: the time on the clock started resetting, the car didn't turn on on the first press, the Prius computer rebooted, and eventually the car wouldn't start without a jump start. This has been super-frustrating, and googling around, I haven't been impressed by people's reported experiences trying to have the dealer try to resolve such problems. My worry is that a dealer repair person will change the accessory 12V battery without fixing the underlying problem. I would suspect a parasitic draw somewhere, but voltage tests when the car was overnighted without any kind of charging did not suggest a serious voltage draw on the 12V battery.

Other details about the car: our keyless entry hasn't worked for several years (dead batteries in the key fob?) and we open the car manually using the key each time. We stick the fob in the slot each time we want to start it. MPG is comparatively low vs. other Priuses, perhaps 44-45 MPG, and lower when the 12V battery starts to die (37-40). I have had the car serviced (oil, etc.) like clockwork every three months; recently, I've noticed the engine is starting to burn oil a bit (level is reported low on each change).

Most of the driving has been done in the flats and the heat of California's Central Valley, and we've put something like 120,000 miles on it just in the last five years. Besides the fact that the 12V battery keeps dying, the car has been very reliable.

We just inherited a free Prius with just 60,000 miles on it, and I have a 1993 Camry with 150k miles on the chassis and maybe 60k miles on the replacement engine I had dropped into it a few years ago. The Camry just passed California's smog test and seems to be running well. We don't want or need three cars.

Our choice is to try to fix the Prius with 193k miles on it and donate the Camry (which gets about 20 miles to the gallon, the horror...), or keep the Camry and donate the Prius. My instinct is to not drop thousands of dollars into the high-mileage Prius, especially if these issues might be pointing to a dying main battery.

View 19 Replies

Ford - Taurus :: 2002 - Rough Idle / Misfiring During Operation?

I just recently purchased a used taurus and was experiencing rough idling and misfiring during operation. I replaced the EGR valve, the egr sensor, coil pack, spark plugs, iac valve, as well as check for vacuum leaks near all the hoses. I am a novice when it comes to this, but I was able to change those without issue. The misfiring was fixed during driving, but I still have rough idling. The needle seems to stay in check pretty well and the check engine light isn't on, but the car kinda hesitates and it causes the car to rock when idling. You can also feel the stuttering and rocking when cruising at very low speeds (5-15mph). I've already plugged in a decent amount of money into parts and am running out of patience when it comes to fixing what is a "potential" problem, and it winds up not fixing much.

View 5 Replies

Toyota - Corolla :: 2006 - Blower Operation Makes Idle Drop

2006 Toyota Corolla , 100k, manual transmission. Good maintenance, I know the car. The owner told me that the use of the highest setting of the blower motor will cause the engine idle to drop. I stopped-by his place and he started it up, engine was already warm due to recent use, he then turned on the heat, went through the blower settings. I watched the tach and saw the engine rpm drop by almost 300 when he turned it to high. Recent battery and cables (Summer 2014).

View 5 Replies

Ford 6.7L Power Stroke Diesel :: Fuel Consumption At Idle During Arctic Operation

Did a little experiment today. I was in Fairbanks this week and today it was between -35* and -40*F. Quite frankly I was too lazy to park my truck behind the building and plug in, so I just left it running.

2015 F350 KR, 63k miles. Fully deleted and tuned with a PPE Ez-Lynk. I've been running the stock tune because mileage seems about the same between all of them and when it's winter with ice and snow, you don't go anywhere fast. 5W40 synthetic oil with 7300 miles on it and 220ish hours. Change engine oil soon light has been on for the last 200 miles and 20 hours.

I have the BD Diesel high idle kit with the rotating switch to adjust the idle level. Fuel consumption was monitored using the truck computer, which I have found to be very accurate on a consistent basis. Computer was reset at the start of each trial.

Trial 1: RPMS set at 1250 via high idle kit. Truck idled for 6 hours, 10 minutes. Fuel consumption was indicated at 5.2 gallons, or roughly .85 gallons per hour. Engine oil temp was about 185*F (remember ambient temp is -40). I was pretty surprised at how much fuel it used.

Trial 2: Back from lunch at Taco King. Figured the truck itself is pretty smart, so if the engine got too cold, it would probably boost the RPMS on it's own. Turned high idle off. Idled for 4 hours 15 minutes. Fuel consumption was 1.8 gallons, or roughly .43 gallons per hour. Engine oil temp was 150*F. Much more reasonable consumption.

.85 gallons an hour is pretty expensive but .43 gallons an hour is much, much more economical.

The biggest difference, besides fuel consumption, was engine oil temperature with a 35* difference. Is 150*F a safe, sustainable oil temperature for these engines to idle at without causing excessive wear?

View 9 Replies

Prius (Gen 3) :: Occasional Noise Like Rock Hitting Passenger Side Of Car

In the last couple of weeks I've noticed an occasional noise which sounds like a rock hitting the passenger side of the car. The first few times, that's what I thought it was, but it's now happened a couple of times while I wasn't moving, and today it happened while I was parked! what it is?

View 7 Replies

Prius (2004-09) :: Occasional Beep From The Dash After Shut Down

Gen II? My 2004 will occasionally beep from the dash after shut down (until I close the door). If I ignore the beep, close the door and walk away, the next morning it will need a jump start!

My dealer said it was because I was shutting down before putting it in Park. I always thought Park was unnecessary. Anyway, I got in to the habit of putting it in Park every time before shutdown, and still sometimes I get the dash beeping when I open the door.

View 11 Replies

Prius (2001-03) :: Missing At Times When Idle And Lower RPMs - Whole Car Shaking

Car misses horrible at times at idle and lower RPM's, shakes the whole car. MPG around 32. Runs better when car is fully warmed up. PO171 and PO 300, 301 and 304 codes come up.

Here's what I've done so far to try to correct the problem:

Cleaned mass air flow sensor. No change.
Replaced mass air flow sensor. No change.
Replaced plugs and ignitors (coils). No change.
Replaced PCV valve. No change.
Replaced upstream O2 sensor. Same codes come up but MPG increased to 37.
Replaced throttle body. No change.

Car does not miss when accelerating hard. Sometimes runs perfect at idle and lower rpm's, but mpg is way low as it used to be in the 50's or higher. Car idles perfect in neutral. Always runs perfect the first 3-4 seconds when you first start it, then starts shaking. If I put my finger in the throttle body when it's running poorly, apparently disrupting the air flow a bit, the idle smooths to perfect.

I have an extra computer, although I don't know if you have to program the key for it to work. I don't suspect this is the problem anyway. I haven't changed the fuel injectors. I can't hear a vacuum leak.

View 8 Replies

Prius (Gen 2) :: Occasional Clunk Noise When Stepping And Releasing Brake Pedal

I get a clunk noise when stepping on and releasing the brakes occasionally but not always. This occurs even with the engine off and the vehicle stationary. I also hear some other noise like some sort of vacuum servo thing is happening.

View 4 Replies

Bmw - 328 :: Pumping Noise Under The Hood - AC Compressor Failure?

I have a 2007 BMW 328xi with only 46000 miles. About three weeks ago, I heard some pumping noise under the hood so I drove the car to a repair shop for estimation. I was told that the AC compressor stopped working. When I drove out of the repair shop about 5 miles, the car stopped running and was towed back to that repair store. After the new AC compressor was installed, the car still could not be started. It was then towed to dealership. Now I was told that the AC compressor failure caused engine chain problem, to fix it. Does it make sense? How AC problem can cause engine problem?

View 19 Replies

Prius (2004-09) :: 2007 - Knocking Noise / Rattle Only At Idle

My car is making this noise. Its only at idle. Doesn't affect fuel economy, just alarming.

View 19 Replies

Ford - Explorer :: 2004 - Honks 3 Times On Lock And 4 Times On Unlock

My 2004 explorer honks 3 times on lock and 4 times on unlock when you just press the remote once.

View 5 Replies

Ford - Explorer :: 2004 - Honks 4 Times On Lock And 2 Times On Unlock

Trying methods found elsewhere on this site not working anymore. No matter how much wd-40 and door slamming I do, I am getting the 4 short honks on lock and 2 on unlock. No door ajar light and interior lights go off as normal so it doesn't seem to be door open sensor.

View 9 Replies

Lexus RX 2004-09 :: One Touch Operation Won't Work

Tried reset by holding while it went back, up, then down, then forward, still one touch operation does not work.

View 2 Replies