# 2001 Chrysler PT Cruiser whirring **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** chrysler, ptcruiser\ **Created:** [March 29, 2018, 12:08am UTC](https://community.cartalk.com/t/2001-chrysler-pt-cruiser-whirring/114628 "2018-03-29T00:08:05Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![DavePyman](https://avatars.discourse-cdn.com/v4/letter/d/bbce88/32.png) [@DavePyman](https://community.cartalk.com/u/DavePyman)\ **Post date:** [March 29, 2018, 12:08am UTC](https://community.cartalk.com/t/2001-chrysler-pt-cruiser-whirring/114628/1 "2018-03-29T00:08:05Z")
My cruiser makes a whirring noise coming from the engine/drivetrain ---
**Author:** ![circuitsmith](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/circuitsmith/32/40376_2.png) [@circuitsmith](https://community.cartalk.com/u/circuitsmith)\ **Post date:** [March 30, 2018, 2:11pm UTC](https://community.cartalk.com/t/2001-chrysler-pt-cruiser-whirring/114628/2 "2018-03-30T14:11:50Z")
Does it do it when revving in park? Have a helper rev the engine. Listen closely around the serpentine belt for the noise. Remove the belt (engine off!) and turn the pulleys by hand to see if they work smoothly. ---
**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\ **Post date:** [March 30, 2018, 2:30pm UTC](https://community.cartalk.com/t/2001-chrysler-pt-cruiser-whirring/114628/3 "2018-03-30T14:30:28Z")
Under what operating conditions? A few years ago my car started making a whirring sound. Someone described it as the sound of an alien spaceship landing. It was coming from the alternator. I ordered a new one over the internet, planning to change it that weekend. Then, on Friday, on my way to work, the whirring one left this life. I drove straight to a shop to have it replaced, knowing I’d never make it home again (30 miles) on just the battery, and when I got home my new one was on my doorstep. ---
**Author:** ![DavePyman](https://avatars.discourse-cdn.com/v4/letter/d/bbce88/32.png) [@DavePyman](https://community.cartalk.com/u/DavePyman)\ **Post date:** [April 1, 2018, 2:01pm UTC](https://community.cartalk.com/t/2001-chrysler-pt-cruiser-whirring/114628/4 "2018-04-01T14:01:39Z")
Thank you for the reply. I get the sound, which from behind the wheel sounds like it’s coming from the left front of the engine bay, while in gear and under throttle or coasting. I don’t hear it at idle or when revving in neutral. The car has 91,000 k on it. I recently replaced the timing belt, water pump, motor mounts and axels/boots. You’re right about it sounding like an alien space craft. ---
**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\ **Post date:** [April 1, 2018, 2:18pm UTC](https://community.cartalk.com/t/2001-chrysler-pt-cruiser-whirring/114628/5 "2018-04-01T14:18:45Z")
You might be able to zero in on its source with a mechanic’s stethoscope, available anywhere including (I think) Walmart. They’re dirt cheap. ---
**Author:** ![shanonia](https://avatars.discourse-cdn.com/v4/letter/s/9de053/32.png) [@shanonia](https://community.cartalk.com/u/shanonia)\ **Post date:** [April 1, 2018, 2:20pm UTC](https://community.cartalk.com/t/2001-chrysler-pt-cruiser-whirring/114628/6 "2018-04-01T14:20:07Z")
A loose or torn CV boot can produce a kind of hollow resonating sound, but not at idle or revving in neutral. Having just put a new OEM Honda CV boot on my Civic, I found it takes a lot of force with the right tool to tighten the boot clamps adequately; and the clamps that came with an aftermarket boot I tried are not nearly as sturdy. ---
**Author:** ![DavePyman](https://avatars.discourse-cdn.com/v4/letter/d/bbce88/32.png) [@DavePyman](https://community.cartalk.com/u/DavePyman)\ **Post date:** [April 1, 2018, 2:54pm UTC](https://community.cartalk.com/t/2001-chrysler-pt-cruiser-whirring/114628/7 "2018-04-01T14:54:26Z")
The\_same\_mountainbike: Thank you for that tip. I try Walmart first. ---
**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\ **Post date:** [April 1, 2018, 10:17pm UTC](https://community.cartalk.com/t/2001-chrysler-pt-cruiser-whirring/114628/8 "2018-04-01T22:17:46Z")
I believe that your car has a noisy wheel bearing. Take a mechanic with you for a drive, should be easy to identify the noise. ---
**Author:** ![DavePyman](https://avatars.discourse-cdn.com/v4/letter/d/bbce88/32.png) [@DavePyman](https://community.cartalk.com/u/DavePyman)\ **Post date:** [April 1, 2018, 10:21pm UTC](https://community.cartalk.com/t/2001-chrysler-pt-cruiser-whirring/114628/9 "2018-04-01T22:21:12Z")
Thanks for the reply. I have a trusted mechanic who’s hourly rate is $85 vs the market rate of $130 around here. Off I go first thing tomorrow to see him.