shaking during idle

by **solara90** » Fri Aug 28, 2009 8:18 pm

when im sitting at a light it feels like my motor is shaking a lot, my idle is steady around 800- 750ish. IT only does it while the brake is applied if im in park or take my foot off the brake quick there is no more shaking.

What are some possibilities. Motor mounts? or maybe a vaccuum leak in my brake booster (which it shouldn't be its only 5 months old) plus i dont hear any hissing like when my last one took a dump.

by **ChrissyD123** » Fri Aug 28, 2009 8:53 pm

Mine did that last night too. Only this was the first time Ive ever heard it... It kinda scared me only because my Solara has NEVER had issues. Idk. Maybe it was because I was hard on it like 5 minutes before that. I was angry. Are you over 100k?

by **solara90** » Fri Aug 28, 2009 10:13 pm

almost around 98,XXX

by **jzwu** » Mon Sep 21, 2009 8:53 pm

My 01 SLE V6 convertible did the same. After a throttle body cleaning at the dealer, it went away.

Now about 1 year later, it is coming back. I suspect it is the ignition system. So far I have changed the spark plugs and plug wires. Next may be ignition coil at $70 each for 3.

by **5sfe** » Wed Sep 23, 2009 8:30 pm

when you brake does it accel? if not its suppose to

by **solara90** » Wed Sep 23, 2009 9:01 pm

i dont know how to really explain it its when im slowing down and almost stopped. it like its down shifting (which it could be but i wouldn't understand why it would be that late)

by **(K)** » Thu Sep 24, 2009 3:18 pm

Does the idle speed drop while it's shaking?

Let me rephrase that.

Does the idle speed drop when it's shaking while in gear?

by **jzwu** » Thu Sep 24, 2009 7:51 pm

Yes, the idle drops a little.

When I did the throttle body cleaning at dealer, they told me the idle was too low and they adjusted it.

by **solara90** » Thu Sep 24, 2009 9:00 pm

yeah, it starts out around 800ish and will drop to 650

by **(K)** » Fri Sep 25, 2009 10:57 pm

Sounds like a problem my mom has with her Ford Windstar. When she's in park and idle it's normal, when she's driving and comes to a complete stop the engine would bog a little and start to hunt for a quick sec then go back to normal idle speed.

It had to do with her fuel pump, or rather the sock-like filter in the pump is clogged. Either way the whole pump needed to be replaced.

It could be a combination of things, but I don't think it has anything to do with spark or air right now.

by **JvR** » Sat Sep 26, 2009 4:30 am

I have sometimes the same problem, after disconnecting the battery everything is fine....for about 10.000km.

But i drive on LPG/GPL.

by **solara90** » Sat Sep 26, 2009 8:22 am

it has gotten better since i cleaned the throttle body, but it still does it sometimes.

Sometimes (when my car is warm) it will idle high about 900. other times it will be 800 and then settle down to 650 after a while. And other times it will go down to 600 and feel rough then go back to normal

by **mazen222** » Sat Sep 26, 2009 9:36 am

my 99 v6 does the same... usually this happens when im rought on it. but when i drive like normal people, the idle is perfect. but after i beat it up a bit, the idle will act weird.

i think its the throttle thingy that needs cleaning. or spark plugs that i should have changed a while back

by **solara90** » Sat Sep 26, 2009 2:56 pm

maybe its something with the POS throttle body toyota put on the 2az

shaking during idle

shaking during idle

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