I kinda noticed this yesterday after deer hunting but figured it was just because it was 20 degrees out. Today when I got to 50 mph(around 2,000 rpms)it started stalling and I couldn't go any faster til I let off the throttle and eased into it. Once I got to 55mph I went through all the power levels to see if it was getting more power. I could tell a diff in engine sound like it was getting more fuel but it still had the same power. I disconnected the edge and it does the exact same thing, but I can at least get to around 2200-2400 rpms before it cuts out. Is this a sign of injector failure? It has a slight bit of black smoke in stock form. My fuel filter is at 7,000 miles and it could use a oil change. I get very crappy fuel mileage at 12-14 mpg and I think it is much worse now. You can watch the gauge move.

And speaking of oil, I checked it yesterday and it was halfway on the dip stick. Is this normal? It has never burned any before that I was aware of. I change it at 7,500 miles, and it is much darker than normal. The last time I changed it, it looked like new yet.

And one more question, what is the warranty on the motor? I was thinking 6 years but not sure, and I think the injecters are 10?

Thanks
Kurt

I had something very similar happen to me recently. It was cold out (30-40 degrees) and I got on the highway and when I tried to speed up the same thing happened. Then after driving about 30 minutes on the highway I could notice a difference even at low speeds. I was advised to change my fuel filter - I hadn't changed it since I got the truck a little over a year ago, and I've put well over 10,000 miles on it. No clue if it was changed before I bought the truck or not. I had also been running biodiesel for a while, and I knew that this could free up a lot of the crap in the lines/tank from regular diesel, but I had run probably 10 tanks through it and didn't notice any difference until this happened.

Even though the fuel filter isn't that old, try that - it worked for me!

And speaking of oil, I checked it yesterday and it was halfway on the dip stick. Is this normal? It has never burned any before that I was aware of. I change it at 7,500 miles, and it is much darker than normal. The last time I changed it, it looked like new yet.

And one more question, what is the warranty on the motor? I was thinking 6 years but not sure, and I think the injecters are 10?

Thanks
Kurt If you mean the oil level is overfull - it might be fuel leaking into the crank case, sign of injector failure.

The engine warranty is 5 years 100,000 miles. The injectors are covered for many failure modes to 7 years 200,000 miles on 01-03 model years. Fuel in crank case is one failure that is covered under the extended injector warranty. If you are hearing a heavy knocking noise when it cuts out, that's a sign of injectors too, normally with lots of white smoke which is unburned fuel. If it's under 5 years since it originally went into service and less than 100,000 miles, take it to a dealer and have them look at it, it should be covered for just about anything they find, except if it's bad fuel or clogged filter.

I have an 01 that is doing the same thing, if i'm driving along around 55, and get on the throttle it just loses all power, and won't go over 2000rpm. If i wait a little i can go over 2000rpm. fuel filter only has 4000 miles, but i guess i will change it. When it happens to you does your ses light come on? mine does not.

If you mean the oil level is overfull - it might be fuel leaking into the crank case, sign of injector failure.

Just my oil level is half full, it is on the half tick mark. It was full at one time.

And steelhead1268, no light for me neither.

I will talk to dealer tomorrow

If no light comes on, i wonder if it set a code? I haven't checked to see if it has .

One more thing my egt's were running from 750 - 815 in stock setting pulling a lil 10 foot trailer with one quad. And that was flat ground too. Seemed a little high to me.

i don't think thats too high

my truck is a 03 i was going down the highway and heard a pop and the saw a cloud of white and black smoke turns out it was the injectors. I would have them checked have the dealer do a flow return test to see if they are bad.

If dealer does have to replace injectors are they suppose to change them all out or just the bad one? I thought I had heard people say before they had all of them replaced even if one was bad.

Do you have and did you accidently turn the high idle switch on? It'll limit you to 2000 RPM until you flip it off.

Injectors - only the ones that read high will be changed out on warranty.

Turnpike
'05 Chev CC SB D/A Superchips Tuner

previous 02 GM CC SB D/A Stock

I believe on 01 and 02s covered the the special exended injector warranty they are supposed to replace all 8.

I see you have a k&n air filter. Not sure but maybe your MAF sensor in the intake tube after the air filter is dirty. Just a thought.

I see you have a k&n air filter. Not sure but maybe your MAF sensor in the intake tube after the air filter is dirty. Just a thought.

Never even thought about that. How do you clean them? alcohol or a contact cleaner?

Its going in Wednsday, dealer thought it might be fuel filter. He said they had 3 of them in the past 2 days with similar problems and it turned out to be that. But he thought otherwise when I said filter only had 7k on it. We'll see..........

same thing happened to me, i just replace the fuel pressure regulator sencer and it fixed mine, its runnin awsome

Last Thursday my truck started doing the same thing. First thought it was gelling up since it was so cold out. Added some additive and ran it for awhile around town but still falling on its face. I thought also it might be the edge since at first with edge on level 1 and pred on 65 I didn't throw a light or a code. Jacked the edge to level 5 and pred stayed on 65 and got after it. I think a moped could have passed me. Checked for codes with the pred and got a p1093 but still no light. Change the fuel filter got after it and all was good.

Check the air filter. The check gauge will tell you if it is flowing air correctly. Sometimes this will cause poor acceleration.

I'm thinking the new fuel filters are catching a lot more dirt, hence plugging up a lot sooner than the previous ones. I'm about to the point of changing them at every oil change (5K miles).

I agree to clean the MAF Sensor. I had that happen last winter when it was real cold mine iced up a bit. I just used electrical contact cleaner and everything worked good again.

Today all of a sudden without doing anything yet it works. Still seems a tad bit sluggish on top end but nothing like a few days before. Of course I did take Edge out too. :o: Still takiing it in and have dealer look at it. I'd like for them to do a reflash on it too. Is it really help any and how often should that be done? And is it free?:cool:

Clean the MAF with an electrical parts cleaner. CRC works pretty good. Take it out of the truck and give it a good dousing, let dry, and reinstall.

mine was doing the same thing. all it took to fix it was changing the fuel filter. it is back to normal now.

7k is a lot of miles on the filter. I can take one tank to plug it up. I asked the dealer here for a reflash and they want $92.00 to do it. I have other issues that I am trying to resolve.

Got it back today, and yulp it was the filter. Just still can't believe that was all I got out of her though. When I bought this thing 2 years ago with 16,000 miles on it the guy before never even changed it. I didn't realize that til I had 18k on it. Now that was alot.

I asked them this morning to do a reflash on it unless it was up to date, and it was. Maybe it was a good thing they didn't if they cost that much. A while back I was having(and still having)mileage probs and they did it for free, but who knows now.

what exactly is a reflash, and how do i know if my truck needs it?

what exactly is a reflash, and how do i know if my truck needs it?

If you haven't have it done on your 01 yet I'd say its due for it. I'm sure someone has a logical explanation for it. But basically it is a updated programming from factory. Like fuel timing, shift points and stuff.

Am I right there.........anybody?

Yup, reprograms the computers with new software to fix mistakes in the original programming.

At various times, based on varoius complaints, my dealer has re-programmed the ECM - Engine Control, the TCM - Transmission control, the body control module, and/or the radio control chip. They don't always address my complaint but as the software is updated by the General the dealer admits they don't alway get the full details of the new programs.

I have been having the same problem today with sluggish performance (to the point of no acceleration or even slowing down) over 2000 ish RPM. I had some hesitation last Monday but only once and it went away. Well today has been the coldest yet this year (high of 14 degrees) and it's been bad.

I'll change the fuel filter tomorrow. It only has 2018 miles on it since last changed...but like some have said, it doesn't take but a bad tank of fuel to gum it up.

If this doesn't work, I'll try cleaning the MAF sensor. Someone else mentioned the Fuel Pressure Sensor...is that the sensor on the bottom of the fuel filter housing?

Thanks for the help guys. I disconnected my Edge thinking that was the issue...but it didn't change anything. I have just over 62000 miles on the truck. Been working real good and reliable until this little deal. Hopefully it'll be a quick fix.

Update.... changed the filter this morning then drove 100 miles or so. Problem is gone. Must have been the cold weather gelling the fuel and clogging the filter.

I forgot to put in an additive when this cold spell hit. :o:

I'm have the same problem, when running the truck hard it just shuts off until the rpms drop below 2000 then it runs,but i can't go over 2000rpm for a little then its fine. I just changed my fuel filter, and it still does the same thing. It seems to only do it when i'm going up a grade? Also at what speed does the speedlimiter come in to play? Baffled need some help here!!!

At about 96mph the speed limiter kicks in.

You may still have a code that got set when the fuel rail pressure was low. May have to clear the codes to get RPM up.

Had same experience last week. Running about 75 MPH, cruise kicked the throtle up, bogged to 2000 RPM, did it three or four times over 500 miles. Changed the fuel filter, the dealer checked and it had a code, cleared that, and has run fine since.