Prius (2004-09) :: Code P0A92 Accompanied With Grinding / Crunching Noise
Apr 28, 2015
2008 Prius with 105k miles was throwing code (P0A92) and had accompanying grinding/crunching noise. Intermittently, The HV battery would drain down and the car would have difficulty starting. The car was stranded in the middle of a 2,000-mile trip in October after extended use of the A/C, and was left at a friend's house until February.
After weeks of arguments with local Toyota dealerships, who refused to listen to Toyota's national service representatives and demanded that we purchase a replacement battery for $3,000, I purchased and installed a HybridAutomotive grid charger. The Prius started and drove, but lost power about 10 miles into the drive back. Being in a hurry, we resolved to return with a trailer and tow the car back to my shop.
A replacement, low-miles transmission was installed per directions in the FSM. There was some trouble getting the inverter pump to bleed (I ended up taking off the return hose & pouring coolant backwards through the pump), and I had to swap in a spare 12v battery due to the old one being discharged. The car showed codes C0205 and C0200 (left front wheel speed sensor signal malfunction, right front wheel speed sensor signal malfunction), but no other issues.
About two weeks and 3,000 miles into the transmission swap, the battery I'd swapped in would no longer fire up the computer. A test showed the battery I'd swapped in (which I purchased in 2005) was only outputting 300 CCAs (out of a rated ~1,000). The Prius accessory battery was charged and reinstalled. The battery started the car, but would often need to be charged overnight in order to start the car (even though it would pass voltage and CCA tests). When the car won't start, attempting to jump it off another car doesn't work, and the battery had given readings as low as 10.5 volts, indicating a bad cell.
Yesterday, I had the car's owner run the in-car test procedure. Voltage was 12.3 without load, 12.0 with load. The third test could not be completed because the car shuts down. As the voltages were slightly low, the battery was replaced under warranty, but the car is exhibiting the same symptoms with the new battery. I'm now suspecting a bad inverter and/or failed inverter pump.
View 11 Replies
Advertisement
A grinding/crunching noise recently started happening to my 2001 vw vr6 12v.seems to be coming from the front of the car but only when i accelerate. I hear it through all the gears and am a little concerned as winter is approaching.
View 1 Replies
I have a 2007 Honda Civic with about 46,000 miles on it. I purchased the car "certified used" about 1 1/1 years ago. For the past several months I've been experiencing a grinding/crunching noise when I apply the brake in reverse. I've taken it to a Honda dealer and they more or less told me that it sounds like something could have been wrong with the brakes. They ended up telling me they couldn't find anything wrong and that my brakes are fine. I've called the dealer to see if they could look at it again, but now my car isn't under warranty and they'll charge me to look at it. What could be causing this noise? At this point in time it's more annoying than anything - I'm afraid if I let it go it might end up hurting something in the long run.
View 1 Replies
Recently I had a warning light accompanied by the ICE shutting down. P0121. As the repair, the throttle body was cleaned.
A week or two later, while in Park with the parking brake engaged, I got another warning light along with some text on the display, something about parking brake. I didn't completely absorb the message before powering off, waiting, then powering on. No more warning light.
View 7 Replies
There is a grinding/squeaking noise coming from what sounds like the front driver side wheel area. It is not constant... the interval between each occurrence is relative to vehicle speed. When moving slowly, like in a neighborhood, the gap is about a ½ second. The gap lessens til I hit ±65mph, when each occurrence runs into the next and the sound is pretty constant. The 10 fill-ups before this started I averaged 42.3mpg, my last 2 fill-ups average to 37.6mpg...Oh, there is no audible sound when the car is on a lift...
At first I thought a dragging brake but there is no change in the sound when the breaks are applied...I bled the lines anyway...no change.I thought CV joint, but, from what I've read, the tell-tell clicking and worsening under heavy cornering is not present.Maybe a wheel bearing? I've done the simple bearing test of trying to wiggle the wheel left-to-right & top-to-bottom...no movement.
By the way, this is a manual transmission and the sound is present whether in gear or in neutral or coasting with clutch depressed.
One more thing I should mention, and this might be important... my first poor mpg result coincided with me disintegrating a rod bearing...(low oil) I did replace the bearing with the appropriate size. I measured the crank journal with a micrometer and it still seemed to be right at the factory specs. There were no scores or gouges in the journal. (As soon as I heard the loud ticking associated with a bad rod bearing I shut the car off and pushed it to work where we have a lift. Luckily it was only about a mile and was pretty flat...it doesn't hurt that the car only weighs 1,800 lbs. either.) Anyway, I reassembled the bottom end, torqued the rod cap according to the factory service manual, torqued the oil pump and the oil pan, added new oil and started it up. It ran, and still run, nice and smooth.
View 9 Replies
My CR-V 2005 ( 190,000 miles) got a CEL on ( Nov, 2014)( Colorado). Dealer's scan showed code: P0139 : O2 sensor 2( downstream) slow response( Dec,11,14). I took my car to a shop close to my house for replacement of O2 sensor. After replacement, the machinist told me, my sensor( new) " still stuck full rich". he suggest if my CEL is on with same code ( P 0139), I'll need to change the Catalytic Converter ( Jan, 8, 2015). So far my CEL has been on & off 3 times ( by itself) with the same code P0139.
1st time was 2 days after the replacement, just almost a minute before the empty -gas-tank light was on, and off 3 days later. Ten days after that, CEL was on, just before I filled up my empty gas tank, and off 2 day later. The 3rd time was 3 days after the 2nd, my gas tank is half empty. I decide to fill up the tank and started my car, CEL was off right away. I talk to my mechanist( Jan,28,15), he said My Converter is borderline ,still needs to be replaced. My car has been running OK before, during & after the CEL on & off.
View 5 Replies
My 2007 Prius, 181189 miles, made a crunching sound when I left the freeway this am while stopping. No shaking, vibration or noises while going at speed.
When first accelerating I hear a crunch then clicking. This happened at each stop until I parked. Sounds fine when going in reverse.
I am at work and am wondering if I need a tow truck or try to drive 75 miles home tonight?
View 8 Replies
My Prius has developed a disturbing noise over the past 2 weeks. I believe the noise is coming from the front, driver's side. The faster I go, the louder the noise. It begins shortly after accelerating and doesn't stop until I stop the car.
I didn't think it was a mechanical noise, but now I'm not sure. I feel a slight vibration in the accelerator pedal while the car is making the noise. I'm wondering if this is something in the axle, wheel bearing, transmission, or what.
View 6 Replies
Basically I have two problems which will be looked at by Toyota on Friday. But I need to arm myself with ammunition in case I have a debate with the service/repair guy.
Firstly my gen 2 decided not to start for about 10 minutes and gave me the red triangle with an exclamation mark before everything went back to normal again. The car starts every time now but the triangle appears briefly at the start which I don't think was there before. Could this be the 12V battery?
Another thing is grinding noise on full lock to both left and right. What could this be?
View 5 Replies
Bought my Prius (2005, with 160K miles) about a month ago and since I've had it I am hearing a metal on metal grinding noise when braking at low speed. How loud the sound is depends on how hard I am on pushing on the brakes. One of my co-workers has the same model and said that his does not make that sound. Not sure if its just because it has after-market brake pads or something? This noise only occurs when braking at low speeds (below 10 MPH) so I assume its an issue with the front brakes.
Is this something I need to get looked at by the dealership? I had a local mechanic that worked on my old Honda beater take a look and he said that the rotors and brake pads looked new and wasn't sure why they'd make noise.
View 3 Replies
So my dealer diagnosed my 2007 Prius with a transaxle issue, but what bothers me is that it doesn't make the sound all the time. When I brake lightly, there is no sound and when I brake heavily there isn't either. It is only when I do a medium brake above 7 mph of course and around 20's mph range. I am hoping for something besides the transaxle...maybe a wheel bearing...anything.
View 19 Replies
I've got a 2004...it has 90,000 miles. For about the last 5000 miles I've been experiencing - only a few times a month, and totally out of the blue - a grinding noise coming from the front (i think left). This happens when I'm traveling at about 55-58 mph (never at lower speeds). It even happened once when the cruise was set. It gets pretty loud, and i find that if i pull over and stop for a few seconds, then keep going, that it stops. In other words, it seems that breaking to a stop disengages whatever the cause is. Also, no warning lights come on at all...like i said, it happens totally out of the blue. No, it's not the wheel bearing.
View 6 Replies
I am experiencing this whirring/grinding noise:
Which is the same as this thread : Grinding Noise from Dash | PriusChat
It occurs intermittently when starting up the car, though if I then turn the car off (as in my video) the noise continues.
On that thread the vehicle was in warranty and was fixed by replacing the MFD touchscreen. My 2006 UK Prius is (I believe) out of warranty, and the touchscreen/MFD seems to be working fine. Is there anything I can do preventative on this?
View 4 Replies
I may be worrying over nothing but lately when I brake or accelerate I hear a grinding noise on my radio. I listen to AM. With my other vehicle it usually meant there was a problem somewhere.
View 1 Replies
My car was making a weird grinding noise when braking above 7mph. I did the neutral brake thing and seems to go away sometimes. The dealership said it needed new rotors and brakes, so I went ahead and did that with them, then called me to let me know the sound did not go away. Now they are stating my grinding noise is coming from the "inverter generator" which is what they said was the transmission. I am just curious why this goes away sometimes and if it's related to my previous issues with the car.
View 1 Replies
I've got a grinding noise coming from near my water pump. replaced the serpentine belt w no luck. it's got 212,000 miles on it so I'm guessing the water pump is going bad.
View 14 Replies
When I drive my prius and make sharp turns or any sort of UTURN, the wheels lock up, automatically brake and there is a grinding noise as if the wheels are rubbing and there is a beeping noise. I took my prius back to the dealer for warranty repairs and the problem persists. is this a normal thing?
View 1 Replies
New to me 2005 with 99k miles
I've noticed this strange grinding/clunking/engaging noise. It seems like it sometimes associated with using the brake and shifting gears upon start-up.
View 19 Replies
04 with 200k miles, car started stuttering like out of gas, when stopped there was a grinding noise from engine. Took to dealer on trailer, when it was taken to the mechanic all problems went away. Changed oil looking for metal chips, none. Did computer upgrade which was the only code on the check engine light.
Drove car for two days on short trips, four or five times 20 to 30 miles. Ran great. At around 40 miles on next day same problem. No lights or codes of any type. Carried to dealer again, they said they were not sure if it is the engine, transmission, or something in between. I was told they would have to take it apart to find out and the least amount it would cost is $5,000.
The grinding occurs when the engine is running only. when revved up it is louder, at idle the noise changes while sitting in park, louder quieter etc. when driving on electric, sounds perfect. (no sound at all)
View 8 Replies
I'm not sure what the noise is, but it sounds expensive. Backed out of parking spot, started making an awful clunky grindy noise. Put in drive and more noise but no go. Put in neutral, still grinding but stopped after a minute. Pushed back into spot, waiting for AAA. Interesting it would not go into park from N until the grinding stopped. No lights on dash interestingly, except the snakes chasing your car (traction?) light flashes intermittently while it's grinding.
View 7 Replies
Just purchased a used 2008 prius with 80,000 miles on it. Braking system makes slight grinding noises when getting below around 10mph. I know the brakes are different, so I'm not sure if this is normal or if it means my brake pads need replacing? Car didn't come with an owners manual .
View 6 Replies
