Pontiac Aztec Heater Only Works While Driving: 5 Common Causes

If your Pontiac Aztec’s heat only works when driving, there are five leading causes you should check.  They are low coolant, air pockets, a bad heater core, an airlocked cooling system, and a malfunctioning thermostat. We’ll start with the easy-to-check common problems and work our way to the harder-to-deal-with rarer issues that could be affecting … Read more

Pontiac Aztec Check Engine Light On: Why and What to Do

The check engine is the most common warning light that appears in the Pontiac Aztec’s instrument cluster.  Well over half of this site’s content is related to solving the various reasons why the check engine light comes on. The good news is that the check engine light indicates that there are Diagnostic Trouble Codes (DTCs) … Read more

Pontiac Aztec Service Theft Deterrent System: Causes + Reset Procedure

Most GM vehicles built in the last 20+ years have a theft deterrent system, that includes the Pontiac Aztec.  Depending on the model year, your vehicle’s theft deterrent system disables the fuel pump, ignitions system, or starter if unauthorized access is detected.   When your vehicle Aztec theft deterrent system message, the system will not let … Read more

Pontiac Aztec Alarm Keeps Going Off: Causes + How to Fix

Your Pontiac Aztec’s alarm system is designed to detect potential intruders, keep its contents safe, and keep them from driving your vehicle away. However, it is not uncommon for a car alarm to go off, or keep going off, for no apparent reason– also known as false or “nuisance alarms”.  This article will discuss some … Read more

Pontiac Aztec Rough Idle Causes + Diagnosis

If you own a Pontiac Aztec and it’s idling rough, you may be feeling frustrated. In this article, we’ll look at some of the most common causes of a rough idle in the Aztec and how to fix the problem.  The most common cause of a rough idle is misfiring. What an Engine Needs to … Read more

Pontiac Aztec Bad Fuel Mileage: Causes

If you’re filling your vehicle up regularly and still getting crummy mileage, there are a few things that could be to blame. In this post, we’ll explore some of the most common reasons your Pontiac Aztec is getting bad gas mileage. Before diving in, it’s important to note whether or not your Aztec’s check engine … Read more

Pontiac Aztec Metal Shavings in Oil: Causes

If your Pontiac Aztec has metal shavings in the oil, it almost always indicates engine damage, but it’s not always easy to tell what is causing the issue. This article will help you figure out what’s going on with your vehicle. Metal shavings accompanied by a knocking sound typically indicate your Aztec has spun a … Read more