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Sierra 1500

The cause behind diagnostic trouble code P0171 (https://www.yourmechanic.com/article/p0171-obd-ii-trouble-code-system-too-lean-bank-1-by-andrew-quinn) is easiest to find by looking at the secondary firing patterns on the Bank one cylinders. That will confirm if the too lean condition, that has caused the code to set, affects...

Worn steering components will definitely contribute to a loose steering feel but usually don't give you a wobble - unless something was left loose and not tightened properly.. A wobble at certain speeds can be caused by: Out of balance...

The traction control system monitors the steering stability of the vehicle and engages when loss of traction has been detected. This is done by the use of electronic sensors that communicate with the Power Train Control Module (PCM) regarding steering...

To resolve this, the trouble codes will have to be downloaded, interpreted and followed up on in terms of performing specific diagnostic tests. To obtain the stored codes, I would recommend requesting a check engine light diagnostic (https://www.yourmechanic.com/services/check-engine-light-is-on-inspection) and the...

Given the number of symptoms that you have described, there might be more than one basic underlying cause of the poor operation. Also, mechanical failure such as poor cylinder compression and/or sticking valves would have to be ruled out. Generally,...

You will need to let the truck dry out overnight is you do not need to drive it and in the morning if it still has same problem then get computer tested to see if you have codes stored in...

It is possible that the quality of the rubber in the bushings for the shocks could not be as good as what the original shocks had. When bushings rub against the both that secures them to the vehicle this can...

Your transmission has relatively low miles and if used in normal service would not be the first suspect. There are a variety of suspension, as well as brake, drivetrain, and motor mount components, that could account for the noise. As...

Carfax reports unfortunately only reflect any work or damage that was reported to Carfax. I would suggest checking the Kelly Blue Book website with specifics related to your zip code as market prices of cars vary by zip code. This...

Hi there. To see if the pitman arm has 3 or 4 splines, check the splines on it with the nut off. Use a flashlight and look at the splines to see if there are 3 large flat areas or...

You should go with the same motor you had originally. If not you will run into fit problems and computer issues with the sensors after you try to start it. There will be less problems by going with same motor...

There seems to be a variety of symptoms going on at the same time. Addressing the ticking issue, it could be your lifters, and it could also be your fuel injectors. This could be part of the problem when it...

Your truck is equipped with wheel speed sensors at each of the four wheels which monitor wheel speed while relaying this information constantly to the ABS and traction control system which are controlled by the car's ECU. When the ECU...

Here is the (recommended fluid chart)[ https://www.dropbox.com/s/aj2pl3u0rybj7pp/2000%20gmc%20sierra%20fluid%20chart.pdf?dl=0]

You first should look under vehicle to see if the fuel tank was damaged during the accident? If it was then the damaged may have caused the problem. If the tank and frame around the tank was not damaged then...

Hi Tyler. Thanks for sending in your question tonight. Assuming your AC is turned off, this type of problem can occur due to a few different issues. The most common reason is that the idle control valve is sticking or...

If the shock has worn out bushings or the U bracket was overtightened it may be hitting metal to metal and U bracket is rubbing metal of shock. Check bracket and shock bushings.

It is possible that you could have a loose leaf spring shackle causing this noise. If the truck does not have leaf springs on the axle does possible that it has an arm that acts as a control arm that...

It sounds like your battery is completly dead. This could have happened either because the battery is old and failed or because the alternator is not sufficiently charging the battery. This issue can be resolved in two different ways depending...

You should try a different key if you have a spare one to try. If the spare key turns the ignition now then the original key is worn and needs replaced.If you do not have an extra key then look...