corolla noise/vibrations when cold start, accelerating and decelerating from 0 to 20 - Toyota Nation Forum : Toyota Car and Truck Forums

msrdude · 12-29-2011, 08:29 PM

I have a 96 corolla and everytime I start it in the morning or cold start, the car makes a vibrating noise and engine is loud. The right front turn signal and side marker covers rattle along with the right front bumper. After the car is fully warm everything is calm and quiet.
Also when accelerating from 0 to 20 mph, the car is loud and I hear stuff rattling where the middle area is. I remved the radio, cup holder, and big box thing to see what made the noise and I cant find it. Decelerating from 20 to 0 the car rpm jumps up like 300 rpm and then back down when it hits 0.
Does anyone else's 7th gen corolla do this or is 7th gen corollas have an issue with this?

Bitter · 12-29-2011, 09:38 PM

bad motor mounts? loose exhaust system?

Yodadex · 12-29-2011, 11:57 PM

when was the last major service? How many miles/km does the chassis and motor with transmission have?

msrdude · 12-30-2011, 02:07 PM

Well it only happens when its cold or not fully warm and is quiet like a new car when it is fully warm. Its like the car is halo or something so its rattling or making noise. I know its not the tranny or the motor mount. My friend has a bad motor mount on his corolla and its not even close to sounding like that

Danny289 · 01-02-2012, 05:03 PM

TPS?? Maybe!

Just my opinion. I had same problem with my other car (Nissan Xterra).

blb · 01-02-2012, 08:48 PM

Change the upper motor mount on the passenger's side of the car. Even though it doesn't look bad, the properties of the rubber change over time and will no longer soak up the vibrations from the engine as they once did.

Danny289 · 01-03-2012, 08:19 PM

Quote:

Originally Posted by blb

Change the upper motor mount on the passenger's side of the car. Even though it doesn't look bad, the properties of the rubber change over time and will no longer soak up the vibrations from the engine as they once did.

Does it help for jumping rpm too?

msrdude · 02-04-2012, 02:14 AM

Quote:

Originally Posted by blb

Change the upper motor mount on the passenger's side of the car. Even though it doesn't look bad, the properties of the rubber change over time and will no longer soak up the vibrations from the engine as they once did.

I agree, thanks. I sat on the right side of the hood while waiting for my car to warm up, and it vibrates like crazy. Then i sat on the left side and middle of the hood and it did not vibrate at all! Is there another motor mount on the right side besides the one next to the timing belt?

aballl18 · 02-14-2012, 10:43 PM

No there is the one by the timing belt then 2 on the other side front and back. then the tranny mount under the air box

sequoiasoon · 02-15-2012, 12:30 AM

Quote:

Originally Posted by blb

Change the upper motor mount on the passenger's side of the car. Even though it doesn't look bad, the properties of the rubber change over time and will no longer soak up the vibrations from the engine as they once did.

That's what mine was with exact same description of problem. Only on cold start vibrated like crazy actually sounded like metal hitting. Warmed up smooth and quiet. Replaced mount all fixed!

msrdude · 02-15-2012, 11:20 AM

So should I go to the auto parts store to buy the motor mount next to the timing belt, or should i go OEM and buy at dealership?

Corolla Sound · 02-15-2012, 05:23 PM

My car squeaks on cold starts but goes away when it warms up. but it also squeaks on left corners Sometimes too. I thought it might of been my timing/drive belts but now I think it may be power steering?

My Dash vibrates when I come to a stop (very annoying!) and if I have any change or anything in my center console, it jiggles lol. and it also sounds kindy windy or exposed to the environment, like the door seals are failing or from the holes drilled in the firewall and floor (amp wire and new rear o2 sensor installation).

My header also vibrates off the A frame or floor upon start up and sometimes when I put it in Drive I can hear my catalytic converter or resonator vibrating off the heatshield and it will continue to vibrate off the heatshield till 20-30 km/h...but ofcourse, it only does it sometimes. I think it would help alot if I changed out my motor mounts.

15 years and still strong! lol

msrdude · 03-12-2012, 06:15 PM

I did the jack with a block of wood on the oil pan experiment and it is 100 percent the right front motor mount because it stopped virbating. Got a new one from ebay, an oem one it claims to be for 30 bucks