Sluggish, Low Throttle Response. - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
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post #1 of 6 (permalink) Old 03-14-2010, 05:31 PM Thread Starter
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Sluggish, Low Throttle Response.

Hey,

I have a 2008 Cobalt LS model that acts very sluggish. On the highway I can press the gas pedal and the RPM will decrease slightly and the car doesn't speed up...unless I really push the pedal fast/hard.

I have read another thread where it was suggested that the owner clear the ECU(?) and do a relearn.

I bought the car used with pretty low mileage. Does the car somehow remember the other driver? (relearn) It's kinda annoying to want to speed up slightly, push the pedal, and keep the same speed.

Any info would be great.

thanks.
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post #2 of 6 (permalink) Old 03-14-2010, 05:39 PM
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Well, how many miles are on the car?

Are you still under warranty?

Are you getting a CEL?

I would maybe start by, cleaning the throttle body.

I if its high mileage, maybe look into a tune up.




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post #3 of 6 (permalink) Old 03-14-2010, 05:50 PM Thread Starter
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20,000 miles. No CEL, yeah still under warranty
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post #4 of 6 (permalink) Old 03-14-2010, 09:45 PM
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Plugs could be foul, Throttle body is probably dirty and needs to be cleaned. Could be bad gas, A clogged fuel filter. Considering that our throttle bodys are electronically controlled then it could have something to do with that as well. Are any acessories on when this is occuring such as the A/C ? I know the A/C system robs our cars of horsepower big time. Anywhere between 7-12 Hp



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post #5 of 6 (permalink) Old 03-14-2010, 09:49 PM
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Quote:
Originally Posted by Cobaltxfe09 View Post
I would maybe start by, cleaning the throttle body.
any how-to's on the topic? relatively simple?

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post #6 of 6 (permalink) Old 03-14-2010, 10:51 PM
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Quote:
Originally Posted by stickx911 View Post
any how-to's on the topic? relatively simple?
1) Disconnect battery
2) unplug the TB
3) remove 4 10mm bolts
4) clean with TB cleaner and a soft bristle brush
5) respray to make sure it's clean
6) let dry for a few minutes
7) reinstall
8] Hook your battery back up
9) start car
10) enjoy your clean Tb




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