# \#g8 **URL:** https://community.cartalk.com/tag/g8/8188.md [Latest](https://community.cartalk.com/latest.md) · [Categories](https://community.cartalk.com/categories.md) · [Tags](https://community.cartalk.com/tags.md) --- ## [2008 Pontiac G8 O2 sensors](https://community.cartalk.com/t/2008-pontiac-g8-o2-sensors/115515)
**Author:** [@StevenWilson](https://community.cartalk.com/u/StevenWilson)\ **Replies:** 5\ **Last updated:** [April 23, 2018, 2:48pm UTC](https://community.cartalk.com/t/2008-pontiac-g8-o2-sensors/115515 "2018-04-23T14:48:40Z")
I have a road ranger plugged in to keep car in 8 cylinder mode. When un-plugged and in 4 cylinder mode car sets a P0430 code. Car has Kooks long tube headers with high flow cats and full borla exhaust ??? some one said t… --- ## [Random squeaky noise](https://community.cartalk.com/t/random-squeaky-noise/107420)
**Author:** [@kailey\_brielle](https://community.cartalk.com/u/kailey_brielle)\ **Replies:** 14\ **Last updated:** [September 3, 2017, 9:29pm UTC](https://community.cartalk.com/t/random-squeaky-noise/107420 "2017-09-03T21:29:16Z")
Hey I’m new, see some post from the forum on Google figured if I asked a question maybe I cld get some help. My bf has an 09 g8 gt and a few days ago it started making this squealing noise (same noise u hear with bad pul… --- ## [Brake noise? Please help me!](https://community.cartalk.com/t/brake-noise-please-help-me/95038)
**Author:** [@Joshmcfalls1990](https://community.cartalk.com/u/Joshmcfalls1990)\ **Replies:** 3\ **Last updated:** [September 1, 2016, 2:52am UTC](https://community.cartalk.com/t/brake-noise-please-help-me/95038 "2016-09-01T02:52:13Z")
https://youtu.be/M6clxdUTKsQ This is the video. I dont know what thise noise could be. I have a 2009 pontiac g8 gt. This noise happens from braking lightly but not hard. Sometimes also when driving. Also does not happen … --- ## [G8 vibration](https://community.cartalk.com/t/g8-vibration/49223)
**Author:** [@mzlinz1217](https://community.cartalk.com/u/mzlinz1217)\ **Replies:** 6\ **Last updated:** [May 26, 2010, 8:44pm UTC](https://community.cartalk.com/t/g8-vibration/49223 "2010-05-26T20:44:28Z")
I have a 08 pontiac g8 gt. when i'm driving and settle in on a speed (any speed) i get a pronounced vibration that only leaves when i alter my speed even just the slightest. It feels like i'm driving a manual and am in… --- ## [No Problems here](https://community.cartalk.com/t/no-problems-here/42425)
**Author:** [@Scirocco](https://community.cartalk.com/u/Scirocco)\ **Replies:** 5\ **Last updated:** [April 15, 2010, 2:02am UTC](https://community.cartalk.com/t/no-problems-here/42425 "2010-04-15T02:02:58Z")
I have to say the Australian's know what they are doing. This is probably the most fun car I've ever driven. How is everyone's G8 going? --- ## [Pontiac G8 GT whistling at startup](https://community.cartalk.com/t/pontiac-g8-gt-whistling-at-startup/44030)
**Author:** [@Oliver\_47](https://community.cartalk.com/u/Oliver_47)\ **Replies:** 1\ **Last updated:** [February 8, 2010, 3:17am UTC](https://community.cartalk.com/t/pontiac-g8-gt-whistling-at-startup/44030 "2010-02-08T03:17:18Z")
I have an annoying whistling noise from the engine compartment upon each and every startup. The dealership has told me that this is inherent in all G8 GT's and that it is perfectly normal. Is there anything I can do to… --- ## [Purchasing a used car (rental)](https://community.cartalk.com/t/purchasing-a-used-car-rental/43057)
**Author:** [@golfnut1](https://community.cartalk.com/u/golfnut1)\ **Replies:** 10\ **Last updated:** [January 25, 2010, 1:22am UTC](https://community.cartalk.com/t/purchasing-a-used-car-rental/43057 "2010-01-25T01:22:44Z")
Should buying a used rental car be avoided at all costs or can they be a good value? I'm looking at a 2009 Pontiac G8 with 10,000 miles on it, previously a rental car. Two schools of thought....rentals are well maintai…