Throttle body - 2004 Colorado

Old 01-30-08, 02:32 PM
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Throttle body - 2004 Colorado

I have a 2004 Chevy Colorado, 3.5L - 5 cylinder. I'm having a problem and the code indicates I need to clean the throttle body. I have the cleaner, but am not sure what/where the throttle body is. Can anyone describe what I'm looking for and where?

Is there anything in particular to be aware of when cleaning this? Engine running? Engine off? Any help would be appreciated.
Old 01-30-08, 03:23 PM
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If you are consdering doing you own maintenance, you should pick up a service manual and study it. Do not attempt any maintenance if you have no idea what you are doing. It could get very expensive.

That said, the throttle body of a fuel injection system is the part where the air passes but not the fuel. It is also where the exhaust gas recirculation often takes place. That is what causes the throttle in the throttle body to stick and need periodic cleaning. It is located after the air filter but before the intake manifold. There is usually a rubber connector at the throttle body, with a hose clamp for removal. There are some very fine wires inside that are very important, they measure the air flow. break them and you have a real problem, see first paragraph.

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