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2009 Chevrolet Chevrolet Impala LT Questions & Answers
2009 CHEVY IMPALA LT 3.5 LITER 2AMP FUSE WORKS THEN QUITS WHY?
The only thing I have seen a 2 amp fuse used for is to light the buttons on the steering wheel. If that is the only problem, I would live with it. If other things start going out, Look at replacing the fuse panel, they are computers. I have replaced 6 or so in the last 2 months. Different makes and models.
Traction control ...service traction light comes on car slows down
To many things to guess at. Really need to have a complete car scan. Code readers are about obsolete. I just fixed one that the problem was the steering angle sensor. But other sensors and modules will cause this. Then again it could be a bad wire. Done that also.
2009 Chevy Impala LT code b001b
What to do with this?
Code B001b is for Sensing Diagnostic Module (SDM) for Air bag.
Potential Causes:-
- Drivers Seat Belt Anchor Pretensioner
- Passengers Seat Belt Anchor Pretensioner
- Sensing Diagnostic Module (SDM)
- Sensing Diagnostic Module (SDM) Wiring
1. Confirm the passenger seat belt anchor pre tensioner connector position assurance is clicked into place.
2. If not, click it in and retest.
3. If the codes reset, disable the Supplemental Inflatable Restraint (SIR) system.
4. Substitute a 2.0 to 2.2 ohm resistor for the passenger seat belt anchor pretensioner. Refer to Tech Tips for a load tool.
5. Retest for the code to reset.
6. If the code resets, check for harness problems between the seat belt anchor pretensioner and the Sensing Diagnostic Module (SDM).
Tech Tips:
At the beginning of the 2009 model year, the Impala began being equipped with two pre tensioners for the driver and two pre tensioners for the front passenger. The first pretensioner is still attached to the seatbelt retractor. The second pretensioner is attached to the anchor point for the seat belt.
A load tool can be fashioned from an 1157 light bulb and socket. Turn the bulb into the socket. Using an ohmmeter, determine which 2 wires have 2 - 3 ohms of resistance. Use those 2 wires as the load tool.
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Trouble code P0411
P0411 Chevrolet - Secondary Air Injection System Insufficient Flow
Possible causes
- Vacuum hoses damaged or pinched
- Faulty Air Pump inoperative
- Faulty Air Pump harness is open or shorted
- Faulty Air Pump circuit poor electrical connection
I have codes p1682,,coo40,,,c0899,,co242,,po523...reduced engine,,service traction control..traction control light,,car lost power,,now after charging battery car cranks but wont start
Chevrolet spark stalled and at times wont start or idle but cranks
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.
Hi how to set a timing belt tensioner pulley when replacing 2011 Chevrolet aveo
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.
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