Question about Chevrolet Blazer
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Posted on Jan 02, 2017
SOURCE: 93 chev Blazer
perhaps i missed something here... lowbeams and daytime lights are about the same.... be that as it may... the merely obvious thing is that the low beams are burnt out.... next thing would be that the relay for the day time lights could be defective... it's often mounted on the firewall.
Posted on Dec 16, 2008
If you have Anti-Lock Brakes, have them checked. Otherwise it is most likely your master cylinder, check the fluid level, and if it is fine you will need to replace it. Your pedal feel may not feel diminished, but it will definitely need to be replaced soon... of course if its not an ABS issue. If you do replace your master cylinder, follow the instructions and most certainly bench bleed it. It could be catastrophic with out it.
Posted on May 27, 2009
Hello! when you say just about everything ; Can you give a brief run-down of what you have done? If you have not checked all vacuum lines for breaks, worn, pinched or loose;Please do so...
There are three very probable causes; Lets eliminate...
#1 Manifold Absolute Pressure sensor (MAP)...Located on the throttle body...Using a volt meter, Measure across pins...Must be greater than 1 volt at idle...If not it's faulty...
#2 Throttle Position Sensor (TPS)...located at the throttle body...Using a volt meter, measure the voltage at the sensor...Must be less than than 1 volt at idle...As you slowly increase the throttle the voltage must rise smoothly to 4 volts at full throttle...If it skips or jumps the TPS is defective...
#3 The Air Control Temperature sensor (ACT)...Located in the top of the air filter box (It is usually green in color)...unscrew the sensor...Inspect the tip for dirt and contamination...If contaminated the sensor is defective...
Send a comment when complete....
Posted on Jan 09, 2010
Ok, first, you should clear the fault. Sometimes the system will get a bug, and there's not really a problem. You can do this by disconnecting the battery for 10-20 minutes. This will clear any faults. Next, see if the light comes back. If it does, then you can take it to get the codes scanned at a parts store(many do it for free.) Once you get the code and description, you have to troubleshoot the specific system that the code covers. The check engine lights are usually triggered by sensors going bad. On occasion, you will get an actual mechanical failure that will cause one.
Posted on Feb 19, 2010
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