Lexus - Lx450 :: Intermittent Start, Sometimes Dies When Accelerating From Slow Speed Or Stop
Feb 24, 2012
My family has had this car for a long time. It worked fine for years but in the past year it has had some problems when starting. Sometimes the car starts fine, sometimes it won't start until you re-try a few times, sometimes it won't start and you can try over and over and it never does. When it doesn't start, it doesn't do anything at all, no sound or anything. The battery is not dead, the car has more than half a tank of gas. Recently, the car started fine, but after driving it for a while, we stopped at a stop light.
When we tried to accelerate after the stop, the car died, during the acceleration and a left turn. We got the car going again after trying a few times, but later that same trip, the car died again when accelerating, but this time it was from a slow speed, not a stop and it was while we were driving straight. The car is well taken care of (oil changes, check the oil, do not let it get to under a quarter of a tank, change transmission filter & oil, air filter, brakes, etc.) The timing chain is permanent, stainless steel. We do not drive very much but we are afraid to now that we don't know if it will die while we are driving.
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My 97 Saturn SC1 dies as I slow to stop. It will restart but the RPM goes very high for a little while before it drops back down to normal. What do I need to do to fix it?
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My wife's car is a 2006 2.0T Passat. It has been very slow to blow cool air on starting. Once you are moving at highway speeds it cools fine, but then blows hot air when you slow or come to a stop.
I have taken the car to a mechanic who purged and refilled the coolant. This did not fix the problem. Upon checking with the mechanic, we noticed that both the primary and aux. cooling fans start and stop at the same time, and only would come on when I would rev the engine up some (around 2000 rpm).
I have talked with this mechanic and one more. Both are certified master mechanics, but neither specializes in VW. They believe it may be the high pressure side switch or the compressor itself.
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I got a 2002 sierra 1500 with a 5.3l. I just replaced both catalytic converters and y pipe. After I did this, I am having a few problems. First, when slow down to park or at a stop sign the idle drops way down and it dies. I cleaned the throttle body, maf sensor, and ran a can of seafoam and a can of b12 chemtool through it. It did this for a couple of days and now when the idle slows down the "check oil pressure" light comes on before it dies. Then yesterday the "check oil level" light started coming on. Is this all related, would the low idle cause low oil pressure, where to start?
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I have a 2001 Hyundai Accent with 210,000 miles. I had had very few problems with the car in the past 11 years - 2 sensor problems, transmission related at 100K and oxygen sensor at 160K. I have done oil changes every 3000-4000 miles, transmission flushes every 30K, and timing belt replacements every 60K. However, within the last month, the car sometimes dies when I fast or slow brake to a stop. Due to the high mileage, I had the fuel pump and fuel filter replaced and had the timing/tuneup checked. There is no check computer light lit. What else can I check?
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I have a 2016 Touareg Lux model with just 600 miles. On multiple occasions, when accelerating out of a slow rolling stop, the car bogs down and almost dies.....until I let off the pedal and gradually ease back on it. I was nearly rear ended recently as a result of the acceleration hesitation. It's almost as if the engine shuts down and is starved of fuel.
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I have a 2012 SE 4 Cylinder Special Edition and just hit 60,000. Lately, I have been noticing this vibrating/shaking in the front of the car when I'm coasting or accelerating at a slow speed. What it could be? I got my front end alignment done thinking it could be that but it still continued.
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I have a 99 7.3 F250. It dies when I slow down for a turn or for a stop sign. At highway speed, it 'surges' sometimes, and makes he whole truck jump. Also, there is a small leak in the tube connected to the turbo. Has 250k miles ......
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It's not that it won't start, but it accelerates like crap when it gets "cold" out. What do I mean by "cold"? Apparently 60F or less. During May and June my van worked great. Now, just with a bit of nip in the air, she doesn't drive the same.
Symptoms:- When in Drive, the van lurches while idling.- Accelerating from a stop is VERY slow and risks stalling every so often. I could literally floor the accelerator and she'll go a couple MPH.- Between 1 and 45MPH the van will occasionally buck. Meaning the acceleration will either dip or spike so the drive isn't "smooth".- If it's real cold, when accelerating from a stop (or rolling stop) something goes "pop", almost like a mini-backfire.
Van is a Dodge Ram Van B250 1988. V8
During May and June she drove like a dream (well, as much as a 1988 Van that probably needs some extra care). I missed the smooth driving. And come Winter I know I'm it's going to take the van forever to get up to 50MPH on the highway.
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Occasionally, randomly, and unpredictably when accelerating from a slow speed coast I get no power response when I press down on the accelerator. It's as if the engine has stalled, but it has not. When the accelerator is held down for a few seconds (maybe 3 to 7) power comes back with a rush. Examples:
1. Making a U turn from a left turn late. Accelerate slowly forward, take foot off gas as the turn is initiated, press down on gas to accelerate out of the turn and get no immediate power response.
2. Making a left turn into a suicide lane. Accelerate to cross 2 traffic lanes, let off gas and coast slowly forward in the suicide lane while waiting for oncoming traffic to clear, traffic clears, press down on gas and get to response. Continue to press slowly down--no response. Hold the accelerator half or 3/4 down, power surges back after a few seconds.
3. Rolling slowly down a long left turn lane with foot off gas timing oncoming traffic, traffic clears, press down on gas to initiate the turn, no response. Let up on gas and press down again, no response, let up an press down again and car reacts normally.
Occurrences of this problem have been very random. I have spent a good deal of time in vacant parking lots trying to cause the problem to occur without any luck even though I know well the conditions under which it happens. I have left the car with the dealer but, of course, they can't observe the problem either. I have driven nearly 1000 miles without an incident and then had 2 occurrences within 4 miles of each other. I have about 5000 miles on the car and have logged 17 incidents.
Loosing power in traffic is, of course, dangerous. I was about to initiate action under California's Lemon Law when I went to England for 3 weeks in Sept. I rented an Audi A1 and to my surprise I experienced a very similar problem, but it happened much more often. An example would be entering a roundabout, letting up on the accelerator while looking at directional signs, reapplying accelerator pressure and getting no response. Unlike the Hyundai I didn't seem to lose all power, but couldn't get any acceleration. The Hyundai engine is the 4 cylinder turbo and has an electronic throttle. I don't know what the Audi had by way of mechanics. I'm at a complete loss; is there something I don't understand about electronic throttles? I don't have a clue about the source of this problem, but I know I need to get it resolved before I get rear ended.
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Intermittent chirping noise when accelerating from a stop. It sounds like a brake chirp but it comes and goes. Not brakes. Changed pads and turned rotors chirp is still there.
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I recently bought an'08 Base model. It is making a creaking noise in the front end on the left side either behind the wheel or under the motor. It only does it when taking off from a stop and/or turning mainly to the right during slow speed, seems to be when the body weight is shifting. To me it sounds as though something needs greased or maybe a strut.
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Looking at a truck at a dealership. 04 F150 Lariat 5.4 3v? 2wd SuperCrew 148k miles. Bone stock besides the bedliner.
Truck is pretty nice besides these 4 things. Kind of a shudder when taking off from a stop or a very slow speed. Adjustable pedals don't work.
New brakes, but possibly the rears are dragging a bit. Was able to turn them in neutral and the rear on jacks. Extra, guessing because of the newer looking battery, some systems lack data from the OBD2
I'm mainly concerned about the shudder from a complete stop/1-2mph. At the dealer, to leave the lot, the driveway was elevated. I think it showed very well climbing that hill. As it was noticed and played with the gas a bit. Otherwise, you stomp the gas, it may shudder for a second or two, (3-5 times?) once it hits about 3000 rpm in 1st, its fine. Only ever seemed to do it in 1st and never any other gear, never on any gear changes.
We lifted the rear end up on a jack and fiddled around. Put it in neutral and spun the wheels, tried to mess with the drive shaft... According to dad, who was looking at it with me said it was fine and that it's normal to have a little bit of slop, but I didn't notice any real slop myself, tried to push on the driveshaft on the transmission side and I think it may have moved a bit but it didn't feel loose or clang or anything. Although I didn't get to push on it too hard because he was rotating the driveshaft at the time.
I assume new fluids in engine and trans. My dad said something about old oil marks on the transmission pan area or something. Both to the fill line.
One thing that I wonder about is how long this truck has been sitting. I wonder about the differential clutches. I'm not that sure what it really has for the rear end. But google had mention of clutch packs in the rear. I wonder if because it's been sitting that the oil has settled out of the clutches or something. There was a mess of silicon on the rear diff cap area. Couldn't tell if it was new or not. I think we put 10-20 miles on it at least and only looked under it for maybe a half hour... Still did the clunk/shudder at a start from a stop, when we returned it.
So, what could be causing this clunk/chatter when talking off from a stop/1-2mph roll?
Axle wrap?
Differential Clutches?
Differential?
Driveshaft?
Transmission?
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I can't seem to recreate the issue except after going on a road trip. It's kind of scary when trying to go up hills and when I slow down when I come into smaller towns and get to a stoplight, I stop, wait until the light changes, and when I try and accelerate again it's jumpy and doesn't respond for 3-5 seconds which can be annoying to the person behind me.
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Problem is noise that you can describe as clunk, not any harsh or sharp sound. It appears on road bumps or unevenness during slow speed up to about 40kph/25mph. The noise has not been heard over that speed even in bad bumpy roads.
List of thing I've done so far:
- Driven with empty rear compartments
- Driven with open rear door
- Checked the tightness of spare tyre
- Replaced rear stabilizer bar linkages
- Replaced rear stabilizer bar bushings
- Replaced rear axle carrier knuckle bushings
Could it be possible not coming from rear? Should I sit in the cargo space while somebody else driving, any success with this? What to do next?
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