What are common reasons my Chevrolet Blazer overheats?

What are common reasons my Chevrolet Blazer overheats? While there are a variety of reasons your Chevrolet Blazer is overheating, the most common 3 are a coolant leak (water pump, radiator, hose etc.), the radiator fan, or a failed thermostat. See what others are asking about their Chevrolet Blazer.

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.

Is there a problem with the Chevy Vortec engine?

3L [&Vortec&] engine, the LU3, which was manufactured from 2003-2014 has been known to [&consume&] excessive amounts of [&oil&]. Owners [&have&] reported the car requiring [&two&] quarts or more of [&oil&] in between normal [&oil&] changes. The excessive [&oil&] [&consumption&] is likely to be caused by the Active Fuel Management system.

Can a failing radiator cause an engine to overheat?

A failing radiator can cause the engine to run hot or overheat. Most radiators are made of metal and plastic. The plastic parts can become brittle and crack over time, causing a… Read More The bad thermostat can cause two different sets of problems, depending on whether it’s stuck open or stuck closed.

Can you change the thermostat on a Chevy Blazer?

Changing out the thermostat on a Chevy Blazer with a 4.3 Vortec engine is a pretty quick and easy procedure. This repair job can be a solution for overheating as well as when the vehicle is not providing any heat. This depends on whether the thermostat is stuck open or closed.

What happens when the radiator fans stop working?

When the radiator fans stop functioning properly, the engine temperature will rise. The spike in temperature will be highest when the vehicle is idling at a stop, but should sub… Read More

Are there any problems with the Chevy 4.3 Vortec engine?

The 4.3 Vortec engines made from 1996-2002 (L35 and LF6) have been reported to have engine knock problems. In a properly functioning engine, fuel burns in even pockets instead of all at once. The pockets burn in even timing, in sync with engine cycles. Engine knock occurs when the fuel burns unevenly and out of sync with the engine cycles.

Why does my 2005 Chevy Trailblazer die at idle?

Clean it thoroughly and then take it on a test drive. Once the idle is re-learned, your problem will be solved. Also the radio control **** to turn channels or volume and on and off won’t work the radio and cd will switch back and forth,, what could could cause this — 2005 trailblazer.

What kind of engine does a 2002 Chevy Trailblazer have?

2002 Chevrolet Trailblazer EXT 4.2L Engine. It died on me the other day I got a boosts. Later that day I got a new battery. They check the alternator and its fine. We notice the back AC was on and the truck turns off even when we turn on the ac

Why is my Chevy Trailblazer hard to start?

Question : my trailblazer will sometimes be hard to start. it cranks over several times before it will start then when i take off it surges up to 2000 to 2500 RPM’s for about the first 10-20 minutes of driving it. Answer: You could have a vacuum leak, restriction in the air intake or PCV system.

What was the name of the 2002 Chevy Blazer?

The TrailBlazer name was previously used on step-up Blazers. But GMC dropped its Jimmy the automakers equivalent of Chevys Blazer when it introduced the midsize 2002 Envoy. The 2002 Blazers come in LS and Xtreme trims.

When does the new Chevy Blazer come out?

Despite the debut of the new midsize TrailBlazer, Chevrolet expects to keep the smaller, prior-generation Blazer in its lineup until at least 2003. The TrailBlazer name was previously used on step-up Blazers.

How does driving a 2002 Chevrolet TrailBlazer feel?

Highway driving in general is really chill, but local driving feels a bit sluggish. Be prepared to have cars still pass you on the highway, even if you’re going slightly above the speed limit. The car is just heavy, and the engine feels like it’s really working to move the vehicle.

Why is my Chevy transmission not working properly?

Here is a quick overview of Chevy transmission problems and possible causes. Chevy transmission slipping or no reverse – Reverse clutches may be worn out a fluid leak, or a broken sun shell. Won’t shift to higher gear until you let off the gas – Faulty throttle position sensor. A leak in the servo assembly or accumulator.

What happens when engine heats up to operating temp?

As the engine heats up the ring-cylinder mate becomes looser so that the engine will run smoother and easier…but if there is too much wear the combustion gases will begin to blow by the ring-cylinder surfaces and will cause each stroke to lose power.

What are the symptoms of a coolant leak?

Common symptoms of a coolant leak include: The engine runs hotter than normal, or overheats You see a puddle of coolant under the car, or on parts under the hood You notice th… Read More

What causes an intake gasket on a Vortec to leak?

Leaking Intake Manifold Gasket The intake gaskets on the LB4 and L35 vortec’s are very prone to going bad which results in engine leaks, overheating, stalling, etc. The intake gasket sits between the intake manifold and the cylinder head. It is responsible for sealing engine vacuum, and also engine coolant.