Skip the auto shop - Our mechanics make house calls

Q: Pontiac Grand Prix shaking at 30 mph

asked by on

I have a 2007 Pontiac Grand Prix. Just changed the tires, replaced CV axel, replaced spark plugs, replaced brakes (can you tell I got sold a lemon?), wheel bearings and a couple of other things.

My car shakes pretty bad at about 30mph. The tire guy said I needed to get a piece of my rim welded because it has a "small leak"(??) My neighbor told me I have an exhaust leak and that was just from hearing me driving in and out of the parking lot.. My car does tick when accelerating so I'm leaning towards that being the issue but I really don't know. I've thrown so much money at this car since I've gotten it and it's to the point where I want to cut my losses.

The wobbling started happening about 3 days ago and I replaced the tires, cv axle, tie rod and some other pieces since then and the shaking got better(doesn't shake when idling or changing gears) but it still happens when I'm building up speed around 30 mph.

My car has 98000 miles.
My car has an automatic transmission.

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Fuel leaking out of car

The fuel lines and filter would have to be checked to see what is causing your leak. I recommend you do not attempt to drive the vehicle till having it looked at and fixed. The leak may pose a fire...

Q: hi i repaired the power steering return hose now the steering is real hard to turn when you slow down or stop

Hi there. Depending on how you primed the power steering pump and lines with fluid, it is probable that you have an air bubble stuck in the hydraulic lines which is causing your hard to steer issue. I would recommend...

Q: I have aftermarket rims on the front and back rims the front rims do not have a spacer in there seeds to my Hub how do I get them

Unfortunately, you may need to have the car towed to a tire repair shop to have them take them off (most likely using some kind of heat treatment) in order to not damage the new wheels.

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...