Prius (2004-09) :: Shudder When Accelerating Over 10 Mph

2006 Prius ...

Symptoms: The shudder feels like going over a "washboard" dirt road. It mimics the normal "cough / hesitation" that occasionally happens when the MG2 switches to the ICE while accelerating, or vice versa at a stop light. However, unlike the normal switching, this is continuous. It ONLY happens when accelerating; as soon as I lift my foot from the gas, the shudder quits. Although it is worse in stop-and-go, it is also noticeable on a clear freeway. It is worse with a cold engine, but continues from speeds of 10 mph all the way up to 80 mph (and probably higher.) The shudder is slower at lower speeds, and faster at higher speeds. It is most dramatic when making a left turn from a dead stop - the whole vehicle shakes. Weather conditions vary, but usually it happens on dry, paved roads, anywhere from 30-degrees to 75-degrees (F).

Frequency: first noticed a few months ago, gradually becoming more frequent. Now, it is almost every time the car is started. (Sometimes it accelerates without any problem at all.)

Diagnostics: The "Check Engine" light has been on for about 5 years (dealerships couldn't find anything wrong and it turned out to be the MG1 battery.) But when this new shuddering happens, the "Check Engine" light blinks continuously until the shuddering quits (i.e. let off the gas or brake.) There are no other indicator lights on (no triangle of death). And the diagnostics mode tells me nothing.

Other Info: The MG2 battery has not been replaced in the entire life of the vehicle. The MG1 battery was replaced, however, about 2 years ago. Regular oil changes have been kept up, along with air filter replacements, brake pad replacements, tire rotations, and all the other standard maintenance. It has had one owner, and is at 255,000 miles. MPG is currently at about 44.4 and has not changed since this problem started.

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Prius (2004-09) :: Low Temp Shudder On Tight Radius Turns?

I'm new to the 2G and noticed a wheel shudder or jump when turning a tight circle in low temps? I'll try to list out all the info I can:

The shudder was exactly like a 4x4 vehicle in low range/diff-lock when turning on dry pavement.

Going straight or slight turns only, nothing noticeable. ( I was paying attention)

200k miles, just bought the car and haven't changed the WS atf yet.

Temps in the -25°C/-10°F range ....

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Passat (B5) :: 2004 - Turns Over Strong But Never Fires Up

I was driving along the highway and started losing power and within a few minutes I pulled over and and would not start. It turns over strong but never fires up. I recently had a Coil over plug replaced. I am thinking fuel filter or ignition coil hoping it is not a fuel pump.

2004 4-Motion, 1.8 turbo, Tiptronic Trans.

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Lexus GX 2004-09 :: Squeak For A Split Second As Soon As The Engine Fires

Intermittently, perhaps every 20 starts or so, I get this really high pitched squeak for a split second as soon as the engine fires. What it might be?

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Jetta - Volkswagen :: 2004 - Won't Start Smoothly - Would Crank But Not Fires Up

I have a 2004 Jetta TDI Stationwagon. In January it started having starting problems. The car would crank but not fire. After about 8-9 tries it would fire. MOstly does it first crank of the day (whether morning or afternoon).

Mechanic #1 said it was the fuel filter and changed it. But it still had starting problems. Then Mechanic #1 said it was a sensor and changed it. Still had starting problems. In February, Mechanic #2 said it was the fuel pump. Changed the fuel pump. Still had starting problems.

Then Mechanic #2 said it was the crank sensor. But when he checked the crank sensor was brand new (apparently Mech #1 changed it in January). Still had same starting problems.

Mechanic #3 said he received the Crank sensor diagnostic error too but he checked it and it was brand new! He told me to take it to the dealer. I did. Dealer said no it wasn't the crank sensor it was the new fuel pump installed in April was defective. Took off the brand new fuel pump that was installed another brand new fuel pump. Next day car started fine but two days later didn't start again. Took car back to the dealer. They said after all it wasn't the fuel pump it was the crank sensor. After a couple days they said it wasn't the crank sensor but it was the EGR valve that was clogged with carbon. They changed the EGR valve, cleaned it out and gave the car back to me.

Today the car doesn't start again! I tried it about 7 times! Dealer is going to haul it back and try to figure it out! But I am frustrated! What could it be?

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Prius (Gen 2) :: Long Delay With Chirping Sounds Before Engine Fires

I've taken on repairing my mother in laws '07 Prius after a drive-shaft broke and once at the dealers the quote was heading towards £2k with the worn discs/pads and leaking water pump added on. The discs and pads were a breeze and a drive shaft should be with me on Monday (it broke off in the outer cv, probably due to being hammered into the hub after a backstreet garage changed the spit boot) but the water pump or should i say coolant is proving tricky. I drained coolant from the rad and back of the petrol engine block and got about 2.5l or 3 quarts. I then removed the leaking pump, virtually no coolant came out of the pump housing and I fitted the new pump.

To refill the system I open the breather on the rad and slowly replaced all the fluid. I also refilled the petrol engine reservoir and put a drop in the inverter reservoir but that had not drained out. I reckon near enough the same amount went back in as came out. I read a post by Pat Wong and started the petrol engine in inspection mode and it seemed to run fine but just cut out after around 4-5 mins.

All along the VSC, ABS, yellow exclamation mark in circle and yellow square with sliding car in warning lights were on but not the big red triangle or yellow engine light. Also, the red exclamation in circle (handbrake?) will not go off. The inspection mode procedure still works but there seems a long delay with chirping sounds before the engine fires. It still runs fine but again cuts out after a few mins. Could it be shutting off due to brake/driveshaft issues or has air crept into the inverter? Maybe disconnecting the battery for five mins will reset the lights?

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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.

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Lexus GX 2004-09 :: Hard Start - Vehicle Sometimes Takes 3 Or 4 Tries Of Turning Key Before Engine Fires Up

Over the last week my GX has developed a strange issue. It sometimes takes 3 or 4 tries of turning the key before the engine fires up. It turns over strongly and quickly but it isn't "catching". The weird thing is, it doesn't happen every time. Here is what I have noticed:

1) Leave the vehicle parked overnight - no issues starting. It starts right up.

2) Crank the vehicle after having only been off a few minutes (like after you run in to pick something up at the grocery store) it cranks right up.

3) Let the vehicle sit for between 1 and 4 or 5 hours and the problem appears. It turns over and over and over but won't actually start. Anywhere between the 3rd and 5th turn of the key it will finally catch and actually crank.

In all cases, once it cranks it runs smoothly and normally with no issues.

I have replaced the battery thinking that was the issue but that did not fix the problem. Also strange is the fact that this problem occurred after I replaced both front door speakers, an operation that required me to have one or more doors open for an hour or so at a time (hence why I thought it might be a weak battery).

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Malibu :: 2004 3.5 V6 Hard Start - Pedal To The Floor While Cranking Engine Fires And Runs

2004 Malibu 3.5 v6. 101,000 miles. In order to get engine running gas pedal has to be pushed all the way down to get it started. Engine will not start by turning key. Car initially starts sputters and then dies. Pedal to the floor while cranking engine fires and runs. Which direction do I go first at. Ignition or Fuel. What should the fuel pressure be with key on engine not running ?

What should pressure be at while running ?

What is the time frame pressure should hold at and for how long ?

Ignition, Coil,Wires,Plugs. Are these the only ignition parts to look at?

Check engine light is on but has leak in exhaust. Exhaust needs to be welded. All parts above are original. Neither Fuel Pump nor Ignition Component have not been changed. Which do I do first ?

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Prius (Gen 2) :: Engine Tends To Shudder A Whole Lot When Starting

My engine tends to shudder a whole lot when starting (sometimes) I also hear an audible clunk or Thunk sometimes when the normal engine simply starts as well as when accelerating, Decelerating, braking, and accelerating on reverse. I know you may think, axles, but I recently replaced them twice because the first pair made my ABS turn on so I'm returning those (bad brand called "EMPI"), and these second ones seem to be working great (aftermarket SurTrak, the dealer has the original ones for about $600 each WAY too expensive) but I started noticing the clunk after 2 days.

Notice: it is one single clunk not a clack clack clack when turning, no. It is only heard when accelerating, decelerating, braking, and accelerating on reverse; one single clunk. I've been searching a lot and narrowed down the possibilities to motor/Trans. Mounts. Notice: I've recently changed struts, springs, stabilizer bar, wheel bearings hubs, as well as the front axle shafts.

I have a 2004 with 175,200 miles on it by the way!

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Prius V :: 2013 - Car Shudder When Accelerating

About 20000 miles on it, had dealer service a couple weeks ago. Going to a friends this evening. Stopped at an intersection when accelerating again, there was a shudder for a second, different than the normal motor start up. Then I noticed the CEL light and the Hybrid system light were on. No place to pull off the road so continued on about 1/2 mile to the friends condo and pulling in the parking lot it seemed like the engine was in safe mode, reduced power, so parked it there and got a ride home.

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Prius (2001-03) :: Car Shudder When At Stop

From time to time when I come to a stop at light the car will shudder...about a minute or so....that's it no noise.

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Ford - Aviator :: 2004 AWD - Shudder Shifting Into OD

We have a 2004 Aviator AWD. 73k miles. Trans has been shuddering on the upshift to OD intermittantly. No codes no other symptoms.

I dropped the pan, replaced the filter and 5-6 quarts of fluid with Mercron V fluid. No metal in pan, fluid was not burned, filter only had a small amount of dirt. Very small amount (fine dust)of metal on the magnet. Drove it about 50 miles and noticed the shudder again this morning. I planned on replacing the fluid in the pan again after some miles and time so as to get most of the 12 or so quarts replaced.

I have no codes or CEL. No flashing OD light either...

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Ford F-150 (2004-2008) :: Severe Shudder Around 45 - 50 Mph

I have troubleshot this all night. I bought one coil pack and changed one at a time. The problem is still there. I changed the plugs around 90,000 miles. it was doing it before and after. I just put a 6 inch lift and same tires just heavier and it does it even harder. Still around 45-50 mph. it feels like my truck is about to fall apart.

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Prius (Gen 2) :: 2007 Shudder When Hitting The Brakes

My daughter, after turning 16, has claimed our '07 with 170K as her own. Both my wife and daughter have been complaining that the car shudders when hitting the brakes.

For background, last fall, they heard a loud scraping noise coming from the front wheels, I decided that after 155K, it was time for a brake job. I pulled off the wheels and proceeded to swap the pads and rotors to discover that the scraping noise was coming from a rock caught between the hub and dust shield. Didn't really think about it prior to doing this, but this is a different beast when it comes to brakes and the pads still had plenty of life left on them. The piston on the right caliper refused to go back in to allow space for the new pads, so that needed to be replaced. Quite the frustrating job.

The brakes had been fine up until a month ago or so. I took it out for a test drive, but only detected a "shudder" when braking through about 20 mph. I didn't detect any pull in the brakes and the stopping power seems fine. They seem to experience something different than I do.

I plan on pulling the wheels off and having a closer look when our schedules allow. Is there anything in specific I should look for? The mechanical brakes kick in under 10 mph, correct? If the shuddering is happening above this speed, what in the regen braking system could cause this?

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Nissan - Frontier :: 2004 - Brake Shudder Or Vibration

I have a 2004 Nissan Frontier with V6 non-supercharged engine, 4x4, with manual transmission, 150k miles. For approximately the last 30k miles, I have had a persistent shuddering in the cab when I apply the brakes slowing from about 15 to 0 MPH. It is accompanied by a low humming noise that decreases in pitch as the truck slows down. It only happens when the brakes are warm; about 70+ degrees outside or after I've been slowing down a lot. It does not seem to correspond to engine temperature, only my perceived temperature of the brakes. There is no pedal feedback, and it does not shudder when I stop using only the parking brake. It does not seem to affect stopping distance.

I first tried to fix it by doing a very thorough front/rear brake job - new pads/shoes, new rotors/drums, and repacked front wheel bearings. That had no effect on the problem. I tried rotating the tires and that had no effect. I then did a complete front end job and replaced all the bushings and balljoints via brand new pre-assembled control arm assemblies. I also replaced the tie rod assemblies, sway bar bushings/end links, and had an alignment done. That had no effect.

Based on the repairs I've done, I would assume that it is having to do with the front brakes, but is not warped rotors or anything in the front suspension.

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Santa FE SM (2001-06) :: 2004 - Shudder When It Comes To Stop On Acceleration

Ok here's the situation. 2004 Santa Fe 2.7 AWD 170,000 miles.

I recently had to replace the front passenger side Drive axle. That was a piece of cake. However, since then the car has developed a shudder when it comes to stop (felt like the shudder on acceleration that was fixed by the dealer with a reflash). Suddenly it got so bad that it stalls when put into gear with the brake on. It feels like it is not coming out of converter lockup.

When I drained the fluid I replaced it with Valvoline Import multi-vehicle full synthetic (it says it is spiII). I latter added another half quart of Castrol transmax import multi-vehicle (also spIII). Did I screw up my trans? Will a flush work? Or do I just need to replace the trans and torque converter?

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Touareg :: 2004 - Front Wheel Shudder While Turning All The Way

I have a 2004 V8 standard suspension Touareg and when I make a turn and turn the wheel all the way to either the right or the left the Touareg feels like the front wheels are skipping and I can feel a shuddering vibration from the steering wheel. I have the Pirellis on it.

I have 6,000 miles

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Ford F-150 (2004-2008) :: Shudder When Turning Right With 10% Acceleration?

I have a shudder that happens when turning right at a grade of about 10% while accelerating, and only on that condition. While making a routine drive somewhere, there's a turn with that one condition. Every time it shudders. It doesn't bother me because it happens so rarely...

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