Engine won't stay running, stalls while driving?

Ya I have an 03 chevy silverado lifted 6 inchs it has a 4.8 v8 with around 172573 miles and it been like this for a while I took it in they had no idea y it dose it but it low idles then it dies when I trun park or change gars I have a progarmer on it but when I take it off it dose the same thing if you could help that would be great

I also have an 03 chevy silverado with a similar and had the same problem and got it fixed. The problem from what I understood is there is a carbon buildup around the air intake and doesnt allow it to "breath" properly. Mine would flutter but if I went around corners the engine would die from the load of the power steering and no gas. It would be ok if I went around the corner with my foot slightly on the gas. You could probably do it yourself and not have the dealer do it.

Truck has low ideling and a tendency to stall when braking and turning, Engine idle fluctuates when AC is used.

Get you some intake and throttle body cleaner and a baby bottle brush and take off the air intake and clean out the carbon build up works great my 03 was doing the exact same thing I changed the alternator and battery and still the same thing. $230 later I pick up the $3 bottle of cleaner and it did the trick live and learn

Our 2003 chevy silverado stalls when you stop and drops down to 0 rpm. If we hold onto gas it runs. Also it drags like timing is off but does start right up and runs good.

I have two thoughts. One is the i.A.C. Motor isn't functioning properly or the bore that the i.A.C. Mounts to has excessive carbon build up and needs to be cleaned. I heard that i.A.C. Motors are no longer used. This may be true. It doesn't make a lot of sense to me because the engine needs a way to get air at idle. That's what the i.A.C. Motor does. When you decelerate the throttle plate closes thus shutting off air flow through the throttle body into the engine. The i.A.C is mounted below the throttle plate. It has a pintle that blocks a bore in the t.B. When the pcm senses deceleration, the pintle retracts and opens the bore to let air in. If the i.A.C. Motor fails and you come to a stop, the engine isn't getting air unless you press the accelerator. That would explain why it stay's running when you press the accelerator. Now, having said all that, it could be several other things and have nothing to do with the iac. My second guess has to do with a common gm problem from the late 80's and 90's. The t.C.C. Solenoid. (Tourqe converter clutch) there are 3 parts of the tourqe converter that join together as your speed increases to lock the engine to the tranny. Sometimes a solenoid is used to to lock up the converter. When you decelerate the converter should unlock to allow the engine to idle. The problem was the solenoid would fail and the converter didn't unlock and the engine would stall when you came to a stop. Anyway, run that by your local mechanic. Let us know

2003 Chevy Silverado 6 cyl 98300 miles

My truck starts and stalls immediately.A list of repairs already done. Spark plugs, wires, distributor cap, rotor, fuel filter, fuel pump, air filter, lucas fuel cleaner, cleaned throttle body, cleaned iacv, cleaned mass air flow sensor, still same thing PLEASE HELP?

I cant figure out why my truck battery keeps dying ater I let my truck sit for like a week. It keeps getting worse. It seems like something might be slowly draining the battery but I cant figure it out and help would be appreciated

There is time I turn on a/c but the idol goes low and right back to normal idoling it just keep going high and low for a couple of minute and yes it shut off the truck and I started right back up to be on the go
. When the a/c is off it fine idol is great.

The check engine have turn on at one time for three days and after that it turn off never came back on.

I have a Silverado 2003. For the past couple months everytime I try to make a turn without coming to a complete stop it dies. When making a turn after a complete stop I never have any troubles just when I drop my speed and coast to turn. I've been told it may be the fuel pump but I don't want to try that first and it not be it, especially due to cost.

After sitting for approxematly 15 minutes it will start and run for 1 minute and then stall and will not run again until it sits for 15 minutes, it will turn over fine but will not fire