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Silverado 1500

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Question
I am looking into buying a bull bar or a grille guard and I am wondering if one is stronger than the other/ which one I should buy
Hi there. I've found Westin and Steelcraft grill guards to be very well made. However, the key to ensuring your grill guard is "good" is in the installation. Regardless of which one you purchase, ALWAYS follow the steps and advice...
Question
How much to replace o2 senser
Hi there. Quotes cannot be generated via the ask a mechanic portal. Your request is being forwarded to customer service. Please have your vehicle make, model, year, mileage, and VIN readily available. Your description sounds like there is a misfire...
Question
4l60e transmission shifting problem
The 1-2 shift failure on the 4L60E is often due to a faulty throttle position sensor (TPS). Test the sensor (there should be a smooth, linear electrical response over the range of motion) or substitute a known good unit. A...
Question
odometer
Hello, thank you for writing in. The trip reset button is located at the next to the readout. It is hard to see because they are black on black and hidden out of the way. Some models utilize the set...
Question
I had the steering column replaced but it didn't come with a key. Can I just buy an ignition switch with the new keys?
Hi there. It would probably be more expensive to have a mechanic replace your ignition lock cylinder; but it would be the best thing to do to ensure the key would work properly.
Question
Stability light comes on and loss of power
This could be a problem with the programming of the computer systems under a possible recall or technical bulletin for the vehicle. You should have the system tested to see if there are any stored codes indicating a problem. If...
Question
Truck won't start unless you hold peddle down
That suggests the air fuel ratio (at initial start) is far off, so far off that the normal start protocol doesn't work. When you open the throttle during cranking you're admitting sufficient extra air and it eventually starts. Of course...
Question
new timing chain
Hello, and thank you for writing in. GM states that 3/8 in of play is normal. This does not mean that you should not double check that the bolts are tightened to specification, and that the installation was done perfectly....
Question
service 4wd
Hi there. If you replaced the switch and the transfer case module but are still seeing this error code, there are two possible solutions. First, sometimes error codes will be stored in the ECU until they are fixed and cleared...
Question
Low fuel and coolant on dash when full
Hi There, This may be related to a short, a faulty gauge cluster or a faulty instrument cluster voltage regulator. The instrument voltage regulator regulates the voltage supplied to the various gauges in your vehicle’s dash. When this is not...
Question
TPS sensor repaired; now idling is off
There are circumstances that could occur with a failing throttle position sensor that may not set a trouble code. One of the most common symptoms of a failing TPS would be a tip-in hesitation or stumble when you apply throttle...
Question
Battery drains when coming to a stop
Hi There, It sounds like you may have a bad voltage regulator that is allowing the alternator not to charge the battery properly. The voltage regulator is a unit that regulates the charging of the battery by the alternator. When...
Question
What can cause the RPMs to go super high while driving at one constant speed?
Hi There, It sounds like you are describing the symptoms of a failing throttle position sensor. The throttle position sensor monitors the throttle position of the throttle plate inside the throttle body in relation to your foot position on the...
Question
If I have a bad throttle position sensor will my car hesitate to start
Hello There, I believe you are correct in that you may have a faulty throttle position sensor. There are trouble codes that are typically associated with the TPS. One code will set if the TPS voltage is too high when...
Question
THIS VEHICLE HAS FAILED MARYLAND STATE EMISSIONS TWICE.
Hello. A common reason for code p0191 and p069e is a dirty fuel filter. The fuel filter should be replaced on your vehicle about every 2-3 years. Another reason which is just as prevalent of a cause would be a...
Question
My question is about the throttle position sensor
Hi There, The Stabilitrac and traction control systems are operated via wheel speed sensors at each of the four wheels which monitor wheel speed while relaying this information simultaneously to the ABS and traction control system which are controlled by...
Question
High idle after cleaning throttle body while on vehicle
Hi There, This is completely normal for the idle to be little higher than normal after cleaning the throttle body. By doing this, you have introduced more air into the throttle body than it is normally used to. The computer...
Question
rear comfort guide on the seat belt.
Hello, thank you for writing in. There are two forms of "comfort guides" that people commonly refer to. The actual part referred to as a comfort guide is the plastic component bolted to the headrest that guides the belt over...
Question
Engine light was on it started with a slight knock on a cold morning. It didn't stop and it got worse.
Hi there. Depending on the sound of the knocking noise and where the noise is coming from on the engine will determine if the engine needs replaced or not. If the noise is near the top of the engine, then...
Question
How do I reset limp mode on my transmission ?
I need to first explain that there are many reasons that the vehicle could be in limp mode. There could be anything from a sensor that has come unplugged/perished, a failed transmission, an electrical problem, an engine issue, or any...

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