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Jan 17, 2011 - While driving today blower motor Kicked out, I turned up the fan speed and it kicked back in. Got to my destination, turned off the key and the ...
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Your better off finding the cause of the issue. Modern cars have so many sensors and electronics 'bypassing' electrics will become a Huge headache and put a massive dent in your bank account if it goes wrong!
Have you had the battery "Load Tested"? This is where they put a heavy voltage drain on it and see how it copes with it. How old is the battery? A battery can still hold 12 volt but be weak when it's got to supply power to high drain parts like the starter motor. Generally batteries are considered 'Old' when they are over 5 years old, especially on bigger and higher mileage engines.
The fuel pump relay should get power as soon as you turn the ignition to the second position so it can prime the fuel system before you start the engine. I've posted an answer to your Fuel pressure test question and in the video I've attached he shows you a quick "cheat" to test if it's the relay.
The fuel filter is positioned in the line leading from the gas tank to the engine and prevents containments from getting inside the engine, which could lead to a loss in performance and potential damage to the cylinder lining.
Question edited for clarity.
Question moved to model category.
Resetting the airbag light on your Chevy Silverado should be easy to do. Follow this video to watch it being done in a Chevy Silverado. To start with, you will:
Put the key into the ignition
Turn the key to the "on" position
Wait for the airbag light to turn on
Wait to continue until the airbag light turns off (around seven seconds)
Repeat the same steps twice more
Turn on your engine
After you take these steps, your airbag light should turn off. If it doesn't do so, then you should consider taking your vehicle in for diagnostic testing.
If the airbag light remains on, it could mean that something in the system is faulty. That could mean the airbag, the computer wiring, or another issue. Oftentimes, when the airbag light comes on unexpectedly, it is because of interference with the switch.
Feb 12, 2021
It may be because of a bad fuse, so first replace the 20-Amp fuse located in the instrument panel fuse box. If that does not solve the problem, check for:
1. Broken switch connection
2. Broken switch
3. Broken or weak wiring
4. Broken circuit
5. Faulty heating pad
If this sounds too overwhelming, it would be best to take your car to the dealership for a quick fix.
You should have two Yellows
1999 Chevrolet Silverado Stereo Wiring
Constant 12V+
Orange
Switched 12V+Yellow
Ground
Black
Illumination
Gray
Dimmer
Brown
Antenna
Right Window Trim
Front Speakers
6 1/2" Doors
Left Front (+)
Tan
Left Front (-)
Gray
Right Front (+)
Light Green
Right Front (-)
Dark Green
Rear Speakers
4" x 6" Side Pillar
Left Rear (+)
Brown
Left Rear (-)Yellow
Right Rear (+)
Dark Blue
Right Rear (-)
Light Blue
https://www.google.com/search?q=1999+chevy+silverado+stereo+wiring+diagram+color+code
Question edited for clarity.
Question moved to model category.
If you get a 4 foot length of 1\4" clear plastic hose, you can put one end in you ear and use it as a stethoscope to track down the humming. The closer you get, the louder the noise will become.
Coolant Flush or engine oil flush?
https://www.google.com/search?q=2004+Chevy+trailblazer+coolant+flush
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Question edited for clarity.
Question moved to model category.
Black Smoke is rich mixture
Blue Smoke is oil
White Smoke is Steam
What is this 'Trumbler' that you changed?? Not even Google has a clue!
Are you losing coolant? Did someone put Windshield Washer fluid into the engine oil filler? You are burning water. The ECM doesn't like it so it it shakes. At idle there isn't as much pressure to stop the water entering the combustion chamber. Likely a failed cylinder head gasket. You can do a pressure test and there is also a test that identifies exhaust gases in the coolant.
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Inspecting your other problems first:(as yo replaced you MAF)
Take a real good look at the throttle "butterfly" valve. They have a
tendency to get buildup with dirt and will stick slightly open,
confusing the computer into thinking that you are pushing on the "go"
pedal. Get some carb cleaner, or even better, GM Top Engine cleaner,
and really clean out the throttle valve and air intake area. I have
seen several similar problems fixed this way. If this does not take
care of it, it may be worth paying someone an hours labor to hook up a
good scanner and see what is going on. You can waste a lot of money on
the newer cars throwing a lot of expensive parts at them and still not
fixing the problem. It could be a simple loose connection somewhere. A
good tech can catch this type of stuff with a good scan tool. Always check the fuel pressure .
It might be the in tank fuel pump or clogged filter
checking that can be done by you easily: you might check the ground wires that are located at various places on the engine check your IAC valve (idle air control), this is located on the
passenger side underneath the throttle body. These get all carboned up
and can't re-seat themselves properly. You may have to perform a
minimum idle setting also. This isn't to hard but is more complicated
than on a non-computer controlled
MAF signal checking:
I used a small straigt pin and shoved it in the back side of the MAF
connector on the signal line. I started the motor and expected to see
the voltage signal to start low at idle and increase smoothly with
engine speed. Instead what I saw was a stead 5 volts meaning the ECU
had supplied the bias signal but the MAF wasn't loading it down to
generate the signal. The issue was that the MAF socket pins in the
connector were slightly sprung and had a thin layer of oxidation on
them. I tiny rolled up piece of sand paper buffed the terminals up. A
tiny pick probe was used to squeeze the socket pins closed slightly. A
light doping of dielectric grease kept the moisture out and it's been
running fine for 5 or so years no
I think you may have answered your own question. I would check to see if the fuel pump is turning on when you turn the key on to the run position. You should hear a buzz sound coming from the gas tank. I would start there.
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P0404 is a diagnostic trouble code (DTC) for "Exhaust Gas Recirculation Circuit Range/Performance". This can happen for multiple reasons and a mechanic ...
