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post #1 of 5 (permalink) Old 12-25-2009, 09:37 AM Thread Starter
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Fuel Injection

I do not know if this is the correct folder for my question, but I did not see one for Engine issues.

I took my car for an oil change at the dealer. They did the oil change, but also said its recommended that I get a "clean fuel injectors and decarbon throttle body assembly," saying it should be done at 30,000 miles (I have 32,000 miles on my cobalt atm). I decided to hold off on it.

They charge 169.95 for this service. Is this service needed?

I have a 2007 cobalt ls coup with manual transmission.

Last edited by Byter; 12-25-2009 at 09:39 AM. Reason: add cobalt year/type
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post #2 of 5 (permalink) Old 12-25-2009, 10:36 AM
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Moved to *Owners Lounge*

First off welcome to YC!

As for your question, if you want to you can get one of those bottles of fuel injector cleaner at your local auto parts stores for around $5-$10 and just dump it in your gas tank.

As for the throttle body, you can do that yourself. Its not too hard. I recommend removing the throttle body that way you can get it thorougly cleaned.

Just disconnect the battery, disconnect the throttle body connection plug. remove 4 10 mm bolts and your done. Now get yourself a can of throttle body cleaner and spray some all over the inside of the throttle body. use a soft bristle brush to remove any built up grime from around the hinges. spray a few more times to make sure all is clean and everything is removed. Now reverse steps for reinstall and your done. there ya go you saved $160.00




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post #3 of 5 (permalink) Old 12-25-2009, 11:30 AM
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you can use carb/choke cleaner, brake cleaner, acetone, paint thinner etc.
just make sure the edges of the butterfly valve are clean because that's the main reason. if the tb gets stuck it causes the pcm to correct itself, open it slightly and set it back down only to get stuck again. that's why some people get that fluctuating idle.

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post #4 of 5 (permalink) Old 12-25-2009, 01:57 PM
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seafoam it



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post #5 of 5 (permalink) Old 12-25-2009, 06:02 PM
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Quote:
Originally Posted by camopaint0707 View Post
seafoam it
Jared.....im sure that didn't help the OP much....just sayin...




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