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Trailblazer

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Question
My blower motor won't turn on when it's extremely cold 2003 Chevy Trailblazer
Hi there - electrical failures when cold are tough problems, because the source is an electrical connection - switch contact, brushes in the motor itself, potentially a blower motor relay - that shrinks and loses connectivity when cold. It expands...
Question
Car electronics went out
Thank you for your question. The stuck key issue is relatively straightforward and thus can be resolved if you request a stuck key diagnostic. Whenever an electrical system or component will not shut down, or starts without a command as...
Question
Shifter button will not engage to put into gear
Hello, thank you for writing in. There is a shift override button located on the gear shift for towing purposes. This overrides all of the sensors so the vehicle can be moved without the key and other power sources. You...
Question
my car shakes and loses horsepower
Hello It's quite possible that you have a fuel system leak, damage to the EGR valve or other emissions related component or perhaps an exhaust system leak that is causing both the smell and reduced engine power and mileage. The...
Question
The transmission seems to be slipping.
I see your note about the color of the transmission fluid, but is the fluid level correct too? Dark or burned fluid along with a low level can cause the transmission to slip and if the fluid smells burned there...
Question
System Gross Leak Evaporative Emission p0455
The code P0455 will not be fixed by having an oil change and tune up. The evaporative leak may just have been caused by a loose or leaking gas cap. The system will need to be tested by leak testing...
Question
Why is my car making a rattling noise when i accelerate
Hello, thank you for writing in. The vehicle may be having a catalytic converter issue. When the catalyst inside of the unit fails, it can chip off into chunks and rattle around in the case. The sound amplifies when the...
Question
Keyless entry is not staying programmed.
Hi there. Check the battery in the keyless entry key fob. Sounds like the battery is no longer holding a charge and needs replaced. When unplugging the battery cable to the vehicle, it resets the keyless entry programming to a...
Question
After replacing water pump, thermostat
Overheating has many causes. If you just added coolant after replacing the water pump and thermostat, but did not use the purge points to expel trapped air, that in itself could be the cause. Trapped air in cooling systems causes...
Question
My truck is shaking.
Hello There, It sounds like you may have a faulty fuel pump that may have been damaged as a result of running it out of fuel. As you may know, today's fuel pumps require the fuel to keep them cool...
Question
Headlights automatically turn on by themselves at night when the car is off
Hello, thank you for writing in. The vehicle may be having issues with the headlight circuitry. This may mean that the sensor, photocell, body control module, replacement headlight, or a fuse/relay has failed. Something is allowing power to be sent...
Question
Rpms Rev to 3000 but car does not accelerate pass 35 mph
Hi There, What you are describing sounds like a clogged catalytic converter. The catalytic converter converts toxic exhaust gases into less harmful pollutants that are suitable to be expelled into the atmosphere. When this is clogged, this causes these gases...
Question
Heater fan seems to surge
Hello. Your vehicle does use a vacuum operated heater control valve to allow hot coolant into the vehicle's heater core so that warm air can be generated. If you hear an opening and closing sound then it may be possible...
Question
If I replace my cam shaft sensor in my 2007 trailblazer will it start. I have mechanics telling me that my motor is gone
Hi there: Unfortunately, it's impossible for us to tell you whether or not replacing the cam sensor will solve your problems without being onsite to complete a check engine light inspection first. You might want to ask the mechanic to...
Question
My car hesitates upon acceleration
This may be a sign of a faulty fuel pump or fuel pressure regulator. As you know, when you turn the key to on, the fuel pump is activated and the fuel system is primed with fuel at a specific...
Question
Oil pressure gauge
Your oil pressure gauge works by using a sending unit that is mounted down on the engine block that reads the oil pressure inside the motor when the engine is running. As the engine RPM's go up, more crankcase pressure...
Question
Car does not start
This may be related to many different possibilities, some of which may be related to a lack of spark and some of which may be related to a fuel delivery problem or a combination of both. For example, if the...
Question
Where is the canister purge selinoid located at?
The EVAP system is located in the rear of the vehicle near the fuel tank, which may be part of your problem in the event there is a leak in the EVAP system. Your car has a small purge valve...
Question
Indicator lights of park and drive are on. The engine don't want to start with the lights on.
Hi there. The orange gear light that appears on the dash is the warning light for the transmission. First check the computer (ECM) and see if there is any stored codes for the transmission or transfer case (if your vehicle...
Question
Why do my interior lights dim when stopping and car intermittently shuts off at stop light. 2006 Chevrolet Trailblazer
Hello. This can be caused by a number of things. Most of the time if this only occurs when coming to a stop it is because the computer is not maintaining a high enough idle. This can occur because of...

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