• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

high-pitched whistle and bouncing idle

CSteen85

New member
Hi guys,

Over the weekend, I changed my thermostat, which went well. The car now heats up to temp, which I'm pretty excited about. I even got asked out by the guy at Auto Zone, because he was so impressed I was doing it myself, LOL.

This morning, I was sitting in my car with the window down waiting for the train and I heard this pretty loud, high-pitched whistling sound. At first, I wasn't sure it wad coming from my car, so - tried shifting out of park, but the sound remained. Then, I turned the car off and sure enough, the sound was gone. I also noticed a bit of a rough idle, bouncing only by about 100-200 RPMs, but it doesn't feel exactly normal.

Are these two related? Could it be a vac leak or is there something else I should look at?

Recently, I've cleaned the MAF sensor and replaced a vacuum line going to the Throttle Body. I checked a couple of the lines when - changed the t-stat, and everything seemed okay.

Thanks!
 


sounds like a vac leak.. I'd check all your hoses again. Did you replace the big line going into the TB? make sure its seated right.
 
Last edited:
Back
Top