08two.two

I have been trying to figure it out for a while. I will be driving and if I accelerate a little, once I stop the RPMs will jump up around 500rpm. It doesn't matter how heavy I accelerate, I can barely tap the gas or hit passing gear, but once I stop accelerating the rpm will jump up about 2-3 seconds after I'm finished. Has anyone else had any problems like this? The dealership couldn't give me a reason why, and there is no CEL.. probably the reason they can't tell me anything god forbid a tech have any knowledge without a code reader. If anyone has any thoughts please share I think this is the reason my mpg is suckish right now.

nightstalkercars

yep i had the same deal it took my bolt about 2 months for a code to appear and i had to change my pps pedal position senser i got it at the dealer for 80 bucks it replaces the whole pedal

08two.two

Not covered by warrantey?

nightstalkercars

nah i got 54000 miles my man
do a lot of drivin

08two.two

ha got you beat, just hit 57500 today lol, drive alot too

nightstalkercars

well that makes me feel better......some one with mores miles awsome haha

blackbolt89

i have 59k on my 06. hahaha.

check to see if your TB is all caked up as well. i just took my intake apart to seal up a leak that i had on my intake manifold and the TB was caked with dirt and other ****.

08two.two

nah already cleaned the TB, that wasn't the issue. I figured it was a sensor or something electrical, so I think what nightstalker is talking about is a good bet. Gonna order it on Monday, I can get it $70 shipped from GMpartsdirect.com

Spanky's Monkey

iTrader: (6)

i got 79,000+ right now with my 2.4tb and 33# inj going in today with my re-tune. i've had a wierd lean issue at stoplights nut that's about it.

06_ion2

yep my boosted built motor likes todo this here and there. it doesnt like to idle that well on the cams so the idle seems to verry untill it relearns the idle again.. I sware my computers retarted.

kxrida2000

iTrader: (12)

mine had a similar problem when my clutch went? kinda sounds like a slipping clutch by the details but im sure that would be noticeable

08two.two

<<<<auto :P

nightstalkercars

i hope my info. was helpful
like i said when i changed mine it stoped

Shez

This happened a lot on my old car. It was a v6 Oldsmobile Alero. I still never knew what it was...

MadBrad

If you clean your TB, don't mess with the blade. I had the same problem. I cleaned my TB, and messed with the blade moving it constantly to clean all the build up. Put the TB back on, and it hanged when I tap the gas. I had no leaks anywhere. I local guy sold my his TB for $30 bucks, and it fix the problem. I also recently talk to a tech service from my local chevy dealer. He said when I was messing with the blade on the TB, I messed with the calbration on open and closed loop. Which he think is the reason it was surging.

08two.two

Yes, but it was doing it before I even cleaned the TB, it's not hanging up it's regulating then surging a couple seconds later.

Drivechevy

So I have something that happens when I start my car at first when it is cold outside my car will go to 1000 rpms and stay there for like a minute is that ok or not?

jojot

Good info, mine does the same thing but when ever i come to a stop or driving slow like in a parking lot or something. The other day while backing out at work it actually cut off, i cleaned the tb and it did ok for a little while but it's back now. '06 with 130,000 miles


By the way how many miles on average does these engines usually run if taken care of? Some one told me that a 2.8 in an s-10 won't run past 150-180 but it now has 275 and still running strong with no engine work, not even a clutch. I guess it depends on how u drive and take care of them.

08two.two

Dude my 2.8 S-10 had 295k on it before I sold it. No leaks, no problems...passed smog like a champ. I sold it to my mother-in-law and its still going. All depends on the driver like any vehicle.