Whats wrong with my car?!?!?!? - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
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post #1 of 22 (permalink) Old 04-18-2009, 05:56 PM Thread Starter
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Whats wrong with my car?!?!?!?

Whats wrong with my car?!?!?!? Video by Hottest Cobalt Sedan SS in SI! - MySpace Video

THIS IS EXACTLY WHY I DON'T DO ANYTHING TO IT MECHANICALLY!!!!!!! WATCH THE VIDEO TO SEE MY PROBLEM!
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post #2 of 22 (permalink) Old 04-18-2009, 06:21 PM
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im no mechanic or anything but to me.. by the sounds of it.. where ur intake goes into ur motor.. i think that flapper may be moving. it only does it when ur rev ur engine
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post #3 of 22 (permalink) Old 04-18-2009, 06:54 PM Thread Starter
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dude the engine is like spazing it has nothing to do with the intake i have to keep pressing the gas 2 keep it alive and sometimes theres no input when im pressing the gas
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post #4 of 22 (permalink) Old 04-18-2009, 06:54 PM
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CC08 it is not a vaccuum leak...the item you pointed to is the emissions canister evap valve (goes back to the black box between the rear wheels)...I doubt that is your problem.

Trying to diagnose your problem over the internet is akin to pulling your teeth throught the internet! Best advice I can give you at this point is get a code reader and check for DTC codes.

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post #5 of 22 (permalink) Old 04-18-2009, 06:55 PM Thread Starter
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no money for one
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post #6 of 22 (permalink) Old 04-18-2009, 06:56 PM
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Any friends with one? Did you see a CEL -- and did something pop up in the DIC? Try just running the engine for a short bit (no revving unless you have to to keep it running)...then watch for a CEL and info in the DIC. Watch your water temp too.

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post #7 of 22 (permalink) Old 04-18-2009, 07:06 PM Thread Starter
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Water temp gauge never worked ironically. The dic coolant when to normal temp. A CEL did pop up at one point, but then I unhooked the battery to see if it would do anything but nope. I don't have any friends with a reader. And I have to rev to keep the engine alive.
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post #8 of 22 (permalink) Old 04-18-2009, 07:07 PM
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There are 2 vacuum lines on the 2.4...the brake booster (check the entire hose from the front of the manifold to the brake booster) and the Canister Evap valve (make sure it is sealing on each end -- it is hard plastic so look for cracks). Another possibility is the MAF (make sure it is seated properly -- located just behind the TB).

What else was touched or moved when working your temp gauge?

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post #9 of 22 (permalink) Old 04-18-2009, 07:11 PM
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If you saw a CEL you probably have a DTC stored...that is what we need to know to help from far away! Did you drive the car after the temp sending unit repositioning? If not and this problem came about after the repositioning concentrate in the areas you were in -- look for loose wires...

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post #10 of 22 (permalink) Old 04-18-2009, 07:13 PM Thread Starter
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The MAF should be fine but wheres the other 2 things? This doesn't make any sense because when i turned the car on to see if the gauge was working it wasnt. I left it running to get to normal temp and nothing. The gauge wasn't working for whatever reason I don't know. I turned the car off, went to pepboys got some more gm dextron coolant came back filled the tank to the line, started it and then had that problem. So WTF!!! It doesn't make sense!!!!!
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