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When I was a kid, a gentleman that owned a used car lot once said to my dad, you can see into the engine just as far as I can! The reason I bring this up is because you are asking for a diagnosis over the internet for a problem that you described, that could be one of a number of things...

At one time, a shade tree mechanic, with a proper set of tools could take apart a car and put it back together again with nothing more then a Motor Auto Repair Manual to guide them and advise them to the clearances and tolerances and the proper procedure to disassemble and reassemble the...

I wouldn't trust you to fix my bicycle.

The tow / haul switch holds the transmission in gear longer and shifts faster than the stock configuration. It also uses some dynamic braking, applies a lower gear while freewheeling downhill and applying the brake., My guess is that you were manually shifting the transmission, which causes the...

I'm not sure, because I never asked the Engineer that worked for GM that I knew personally that was the plant manager of the Oshawa and later was transferred down to Michigan to the GMC truck plant the reason why they incorporated the Tow / Haul mode. My guess is that they knew that the new...

That is one of the reasons why the older disc brake kits came with new bolts and new hardware - stainless steel shims. You also have to replace the rubber boots. Sometimes the caliper is so bad - you have to get a new one. I'm not aware of a exact sized drill bit to drill out the bore for the...

If you have a truck with a million miles on it and you are too lazy to crawl under it to diagnose a problem, don't you think that it is time to take it to a garage and pay someone to diagnose it for you? There was a recall on the rear driveshaft on the 02 Avalanche I believe. There was a...

You people are so naive, you can go to the parts counter of any GM dealer, give them the Vin and they can run the VIN and tell you which fob is for that vehicle. Why would you waste money on something that probably won't work! From what I can remember, there is something like 12 different...

A friend of mine ( Andy ) was a service manager at a GM garage for many years. Andy started out as a flat rate mechanic. Andy now teaches Vo-Tech kids how to repair automobiles. When a young person goes to work in a GM garage, more times then not, if the computer shows no codes, they are...

My father is 78 years old and was a crew chief for the Blue Angels back in the 1950's and was certified to work on Airframes and Power Plants. My dad's favorite automobile was a 1955 Chevrolet Bel Air. I have to explain to my dad that they do not make a '55 Chevy, nor can you work on new...

Its Monkey see, Monkey do! oNE person does it, and it looks cool, so everyone else has to do it also. What does the bedliner do? It allows you to move cargo in and out of the bed without causing damage to the painted surface. Before bedliners, a service truck would not have any paint in the...

When GM made that junk, they didn't care about recalls because I believe that they already knew that they were going to go out of business - unless someone bailed them out! The funniest part of it all was that they were still writing bonus checks for their senior personnel even though everyone...

If the guts went sideways in the cats - you will not get any airflow through them. I would suggest that you take it to a GM garage and have the problem diagnosed. First 10 years / 100,ooo miles, the exhaust is covered under warranty.

Most 4L60 / 65E problems are associated with a cracked / broken Shell, or the plate between the valve body - worn - that lets the check ball through, which causes a high pressure condition that will blow the lines right off of the transmission. The contamination problem was at one time...

There is a glue / tar like substance that is applied when the vehicle is new to the blend flow door inside of the heater box. The glue, when it gets hot, tends to bond the door to the opening. As long as you leave the AC in the cold position - all the way, it should keep blowing cold air. At...

The Tow / Haul inop problem is a known problem. Soldering the wire will not solve the problem, the harness is already compromised. Just think about how many times it has been shifted from park to drive to reverse to park. The repair involves installing a new shift lever and taking apart...

On other forums, there is many posts about the Key Fob's. Do you know how to activate the Fob? THERE IS A NUMBER ON THE BACK OF THE FOB, YOU LOOK AT THAT NUMBER AND FIND ANOTHER FOB OF THE SAME SERIES. The body control module should be located in the passenger side front door. If you hold...

It is a known problem, if you would have visited your local GM garage they could have told you about the problem and the solution. When the truck was assembled, there is a very good chance that one of the seams in the body was not glued / calked properly. The spot where it is leaking can be...

Take it to a GM garage, hand them the keys, have them fix it professionally, pay the bill, go about your life. Chances are when it went into Limp Mode - it used more gasoline then what the trip to the garage would have cost. Not to mention mental aggravation. Some day it will quit running...

I know this is my first post and I know I am starting out on the wrong foot, but I have to wonder where you Yo-Yo's are from. It would not be safe for anyone to ride around in any of your vehicles. It is never safe to ignore brake problems or dismiss problems by saying the light has been on...