Why are the spark plugs on my trailblazer not working?

Spark Plugs – One of the absolute most common causes (if not the most common reason that your Trailblazer may be misfiring) is the spark plugs. Although most modern vehicles use iridium spark plugs, they still need to be changed at the manufacturers recommended interval.

What are the sensors on a Chevy Trailblazer?

The oxygen sensors that are equipped in your Chevy Trailblazer are responsible for monitoring the exhaust to help the ECU determine the correct air/fuel mixture. Of all the sensors equipped in your vehicle, the O2 sensors may have it the hardest.

What causes a Chevy Trailblazer to idle roughly?

Here are the main components of the ignition system, as well as what would cause them to make your Trailblazer idle roughly. Spark Plugs – One of the absolute most common causes (if not the most common reason that your Trailblazer may be misfiring) is the spark plugs.

Why is the air filter on my trailblazer not working?

If you have reason to suspect that your Trailblazer’s air filter has not been changed in a very long time, or if you have recently been driving in tough conditions, it may be worth taking a look at it. It could be so clogged that there is not enough air getting through for quality idle conditions.

My trailblazer started with the spitting and sputtering (misfiring) last week. Over 100,000 miles on it, ya, in need of a tune up. So for obvious reasons new spark plugs seemed to be the logical choice. If it wasn’t the problem, it can’t hurt to change them.

Is the SES light on in my truck?

Truck’s SES light did not come on, but truck was running pretty crappy, more when it was cold than hot, but definetely a loss of power. There is also a slight exhaust leak starting, where abouts right now I haven’t pinpointed, deaf in one ear so it’s hard to tell where it is coming from.

Why is my SES light not coming on?

So for obvious reasons new spark plugs seemed to be the logical choice. If it wasn’t the problem, it can’t hurt to change them. Truck’s SES light did not come on, but truck was running pretty crappy, more when it was cold than hot, but definetely a loss of power.

Why is my Chevy Vortec 4300 V6 leaking fuel?

In the L35 and LF6 engines, the spider injectors are known to leak at the pressure regulator and at the supply and return lines due to a design fault. Outside of leaking fuel onto the exterior of the engine itself, it can cause excess fuel to get sucked into the engine.

How to troubleshoot a Chevy 4.3 engine?

1 Common Problems. A common complaint with the Chevy 4.3 engine is that it doesn’t idle well, it’s loud and makes awkward noises. 2 Idle Air Control Valve and Throttle Conrtol Switch. Open up the hood and look at all the wires, spark plugs, tubes, vacuum lines and valves. 3 Check Your Oil. 4 Vehicle Fuilds. …

What causes a Chevy 4.3 engine to stall?

Lack of oil will cause a knocking sound in the engine, stalling, poor acceleration and eventually engine break down. Lack of transmission fluid, battery fluids, radiator and cooling system fluids can all cause symptoms that mimic bad idle air control valves and throttle control switches.

Are there any problems with the 1998 Chevy Blazer?

Check out our Chevrolet Blazer overview to see the most problematic years, worst problems and most recently reported complaints with the Blazer.

How much does it cost to fix a 2003 Chevy Blazer?

1 Transmission Failed Without Warning 2003 Blazer Average Cost to Fix: $1,400 Average Mileage: 0 mi 2 Transmission Slipping 2003 Blazer Average Cost to Fix: N/A Average Mileage: 72,000 mi 3 Reduce Power Engine Light 2003 Blazer