Since you had it in neutral, the battery could have drained. Many things are still on when you can't turn the key completely off. And you can't when it is in neutral.
check fuses relays and battery --lights going on is not an indication of battery being good --test battery with a meter or try boosting but your problem more than likely is key or ignition switch check --your key if worn or have chip key and chip/battery fail truck will not start if you have the other key try that one or try the relearn for the passlock system the link has information on how to do it
http://forums.trailvoy.com/showthread.php?t=69908
CHECK LOW AND HIGH PRESURE SWITCH, OR CLUTCH COULD BE GOING OUT, CHECK VOLTAGE AT COMPR. WENT COMPR. NOT RUNNING IF NO POWER CHECK SWITCHES, IF YOU HAVE POWER CLUTCH IS STARTING TO GO OUT.
This vehicle doesn't have a blower motor resistor ! It has a blower motor control module , if you have automatic climate control !
If manual climate control , then there is a blower motor resistor assembly !
Blower Motor Control Processor
The blower motor control processor controls the speed of the blower motor by increasing or decreasing the voltage drop on the ground side of the blower motor. The HVAC control module provides a low side pulse width modulated signal to the blower motor control processor over the blower motor speed control circuit. As the requested blower speed increases, the HVAC control module increases the amount of time that the speed signal is modulated to ground. As the requested blower speed decreases, the HVAC control module decreases the amount of time that the signal is modulated to ground.
Air Speed - Front Control
The blower motor forces outside air into the vehicle's interior. The vehicle operator determines the blower motor's speed when the driver places the blower switch in one of 5 blower speeds. The blower motor will always operate in any switch position other than OFF, as long as the ignition switch is in the RUN position. The blower motor and mode switches are located within the HVAC control module. The blower motor OFF input is connected in series with the HVAC control module by the off blower motor control circuit.
Depending upon the selected speed, power is provided to the blower motor from either the ignition 3 voltage or battery positive voltage circuits from the fuse block. The battery positive voltage circuit only provides power when the High blower switch position is selected. Power and ground are provided to the HVAC control module by the ignition 3 voltage and the ground circuits.
Low Blower Speed
When the Low 1 blower speed is selected, the HVAC control module applies voltage to the blower motor resistor assembly through the low blower motor control circuit. Voltage is divided between 4 series resistors, a blower relay, and the blower motor to achieve the desired blower speed. The blower motor is grounded through the ground circuit.
Medium Blower Speeds
When the Medium 1 blower speed is selected, the HVAC control module applies voltage to the blower motor resistor assembly through the medium 1 blower motor control circuit. Voltage is divided between 3 series resistors, a blower relay, and the blower motor to achieve the desired blower speed. The blower motor is grounded through the ground circuit.
When the Medium 2 blower speed is selected, the HVAC control module applies voltage to the blower motor resistor assembly through the medium 2 blower motor control circuit. Voltage is divided between 2 series resistors, a blower relay, and the blower motor to achieve the desired blower speed. The blower motor is grounded through the ground circuit.
When the Medium 3 blower speed is selected, the HVAC control module applies voltage to the blower motor resistor assembly through the medium 3 blower motor control circuit. Voltage is divided between a series resistor, a blower relay, and the blower motor to achieve the desired blower speed. The blower motor is grounded through the ground circuit.
High Blower Speed
When the High blower speed is selected, the HVAC control module applies voltage to the blower motor resistor assembly through the high blower motor control circuit. The voltage energizes the blower relay, causing the blower motor to be connected directly to the battery positive voltage circuit. The blower motor and blower motor relay are grounded through the ground circuit.
Go on you tube an check out videos on trouble shooting blower motor circuit
Chevy Trailblazer EXT Blower Motor Won Turn Off
check your brake calipers for exessive wear and while you are at it check the disks too, they might be bend (somewhat)or it is just cheap brake pads...then try to make a few hard stops that usually helps allign the pads
it sounds like the fan resistor is faulty location of it will be attached to the fan structure or if not trace the red and black power wires coming from the fan it will be mounted close to the fan
it could be a coincidence and you have two bad bulbs. those bulbs function independently of each other so I would check the bulbs and the sockets make sure they aren't rusted or corroded and sometimes they can get leaks and will fill up with water..look for signs of moisture. If your bulbs are good and you continue to experience the problem.. please let me know and I can give you some other things to check.
https://en.wikipedia.org/wiki/Chevrolet_TrailBlazer
WikipediaProduction of the Blazer overlapped with the TrailBlazer until 2005, when the 2-door ...2006-2008 Chevrolet TrailBlazer LT ... The Active Fuel Management system on the V8 engine shuts off 4 of the 8 ... 2003-2005 Chevrolet TrailBlazer EXT.
Mar 6, 2012 - Uploaded by MAY03LT
These are the first tests that I do when I have a Trailblazer that won't start. ... Car will not start trouble shooting guide, wontcrank, wont turn over, etc. ... Chevy Trailblazer - testing fuel pressure 2002 -2004 4.2 I6 - Duration: 4:34.
I am mechanic I really need to no more make ect. but it could be battery or the ignition switch or ignition lock n key but like I said need more information this is a guess that I told you
This could be as simple as disconnecting the battery for a minute and the putting it back on or tightening your fuel cap. There could also be a more serious issue that needs to be scanned.
I'm not sure but I think that fuse is in the fuse box under the hood. If not it will be in the fuse panel in the driver's footwell above the Park Brake pedal.
Try this web page. The fuse is marked as "FRT WPR". A 25A fuse. NOTE Only replace fuses with one of the same Amp rating. Fuses are commonly colour coded so that should help make sure it's the correct one.
https://www.carfusebox.com/chevrolet-s10-1988-fuse-boxblock-circuit-breaker-diagram/
Some potential solutions:
EGR (Exhaust Gas Recirculation): You mentioned that you cleaned the EGR, but it's still showing as a fault. The EGR system recirculates exhaust gases back into the intake manifold to reduce emissions. If the EGR valve is malfunctioning or clogged, it can affect engine performance.
Here are some steps to consider:
Check for Vacuum Leaks: Inspect the vacuum lines connected to the EGR valve for leaks or cracks. A vacuum leak can disrupt EGR operation.
Test the EGR Valve: Use a vacuum pump to check if the EGR valve opens and closes properly. If it doesn't, consider replacing it.
Clean the Intake Manifold: Sometimes carbon buildup in the intake manifold can affect EGR flow. Clean the intake manifold thoroughly.
Thermostat: You've already replaced the thermostat, which is good. A faulty thermostat can cause overheating or poor engine performance. Make sure the new thermostat is functioning correctly.
System Voltage Low: This could be related to the charging system (alternator, battery, or wiring).
Here are some steps to troubleshoot:
Check Battery Voltage: Measure the battery voltage when the engine is off and when it's running. It should be around 12.6V when off and around 13.8-14.4V when running.
Inspect Alternator: Ensure the alternator is charging properly. If it's not, consider replacing it.
Check Grounds and Wiring: Loose or corroded connections can cause voltage issues. Inspect battery terminals, ground connections, and wiring.
Idle Issues: If the engine won't idle properly, consider the following:
Idle Air Control Valve (IACV): The IACV controls idle speed. Clean or replace it if necessary.
Throttle Body Cleaning: A dirty throttle body can affect idle quality. Clean it using throttle body cleaner.
Vacuum Leaks: Check for vacuum leaks around the intake manifold, hoses, and gaskets.
Timing Chain: The B12D1 engine uses a timing chain. However, if it's stretched or worn, it can cause issues like poor performance or stalling. Consider having the timing chain inspected and replaced if needed.
Remember that diagnosing engine issues can be complex, and it's often best to consult a professional mechanic or use diagnostic tools.
Tensioner pulleys are designed to be 'Self Adjusting'. These pulleys are on spring loaded arms so they automatically push against the belt keeping it tight. You use a socket or a spanner to swing the pulley arm back against this spring.
*Note* This is a powerful spring so BE CAREFUL when your working on it!
A lot of these tensioners have two small holes to help with installing a belt. When you swing the tensioner arm back these two holes line up with each other. You can then slide a hex key, or something similar, through both holes and it holds the arm back giving you space to get the belt on.
*Caution* When your ready to release the tensioner DO NOT just pull the hex key out!! With the socket or spanner you used to swing the tensioner arm back push the arm against the spring again, carefully pull the allen key out then Carefully release the pressure on the spring so the pulley sits correctly and tensions the belt.
