Pontiac G8:  P0068 MAP/MAF Throttle Position Correlation

P0068 in the Pontiac G8 is a generic OBD II code.  In layman’s terms, it means that the MAP (manifold absolute pressure) and/or MAF (mass airflow sensor) are providing the G8’s computer contradicting data compared to what it should be in relation to the throttle position sensor. The throttle position sensor tells the computer how … Read more

Pontiac G8: Engine Smoking Causes + Diagnosis

A smoking engine is a serious thing.  If your Pontiac G8’s engine has smoke coming from it, it needs to be addressed right away.  It can be caused by quite a few different problems, none of which should be ignored. The most common reasons why your G8’s engine would smoke include overheating, burning oil, or … Read more

Pontiac G8 Hesitating to Start (5 Most Common Reasons)

While it may not leave you stranded, a vehicle that hesitates to start can be very concerning. There are a few reasons why your Pontiac G8 may not be starting, such as a bad starter, a bad battery, bad alternator, and more.   Pontiac G8 Hesitates to Start: Causes Here are some of the most … Read more

Pontiac G8:  Bad Sway Bar Links (Common Symptoms)

Sway bar links are responsible for connecting your Pontiac G8’s sway bar to the chassis.  The job of a sway bar is to eliminate body roll by helping the tires keep better contact with the road, which improves the handling characteristics of your G8.  If you have a bad sway bar link, your vehicle will … Read more

Pontiac G8 Shuts Down While Driving (Common Causes)

If your Pontiac G8 is shutting down while driving, it’s a real safety hazard.  Vehicles are a lot harder to control without power brakes or steering. Below is a list of the most common reasons your G8 would randomly die while driving.  Before looking at anything, is the check engine light on?  If it is, … Read more

Pontiac G8:  Brake Lights Not Working Diagnosis

Brake lights are one of the most critical safety features that your Pontiac G8 has.  They let other drivers know when you are slowing down, and that they need to slow down too.  If your brake lights aren’t working, you’re way more likely to get rear ended than normal.  The good news is that troubleshooting … Read more

Pontiac G8: What’s Causing That Rotten Egg Smell?

One of the most undervalued diagnostic tools is the human nose.  There’s a lot our nose can tell us about a vehicle with a few quick sniffs.  If you happen to smell a rotten egg smell coming from your Pontiac G8, it is certainly a cause for concern.  It is most commonly associated with a … Read more

Pontiac G8 Dies After Starting Diagnosis

It can be very disconcerting if your Pontiac G8 is starting and then dies.  It is most likely caused by some type of issue with the electrical or fuel system.  But, there can be other causes as well. Your G8’s engine needs 3 things constantly and in the proper proportion to keep running. Air Fuel … Read more

Pontiac G8: Brake Lights Stuck On → Diagnosis

It is both frustrating and unsafe to drive your Pontiac G8 if the brake lights are stuck on.  The most common reason that they stay on is a brake light switch that has failed.   How Brake Lights Work Brake lights work by having an electric current sent to the brake pedal switch at all … Read more

Pontiac G8: Shaking When Accelerating → Diagnosis

One of the more common issues that can occur is a vehicle that shakes when accelerating.  If your Pontiac G8 is shaking when accelerating, it’s something that should not be ignored.  While the vibration can be annoying, it is often indicative of a serious problem.   Speed Matters Vehicle speed matters when you feel a … Read more