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YOUR RESEARCHBuzzing when cold?
Leading reported evidence
Use electric shavers
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1
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Suggestion
It's the squirls under the hood using electric shavers before going out.
Leading evidence: 'Use electric shavers' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use electric shavers' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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9 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
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My car has started making a buzzing sound after it starts up. It is coming from the engine area. Only lasts about 30 seconds and goes away once I start driving it. It is a high pitched sound that almost sound electrical. If you have ever heard a bad fuel pump in a Chevy Silvarado it is almost identical. Any idea what it is? Is it something that I should worry about? Did a search but couldn't find any reference to the same type of noise. There is one post with a video that has about the same symptoms but the noise is different than my car's.
This could be your secondary air pump going bad. Next cold start take a listen with the engine bay open and the secondary air pump is on the left hand side of the engine closest to you. I will hunt for a picture.
'
Charles
This is from a previous post on the forum. Not my photo, but the item he is pointing to is a secondary air pump and might be the cause of your noise. Yours may look slightly different.
Charls
+1 SAI pump = normal.
Unless it starts to make a grinding or buzzing noise or doesn't make the noise at all.
It should humm and whirr and make it sound like a vacuum cleaner, but not buzz.
I've also notice the same "hum/buzzing" noise though intermittently at cold start up.
Will investigate with open tail hood and see if the air pump is making the noise.
Thanks for the direction.
Ed
100% normal if it has a vacuum cleaner sound. It is also normal for it to come on while you're driving, usually right after it warms up.
There's a good thread around here somewhere... oh, there it is:
http://www.renntech.org/forums/topic...post__p__85708
