How To Clean A 2000 Chevy Camaro Throttle Body

How to Clean the Throttle Body
1990-1994 Lexus LS400

Cleaning your throttle body may help solve a crude idle problem. Normal idle without the A/C on is 650 RPM, + or - fifty RPM. Cleaning should also gain back some lost horsepower. The hardest office about doing this is getting the throttle body off. You NEED to take it off entirely if you want to completely make clean it. My throttle body had a carbon build up effectually one-2mm thick! You can't get it completely clean unless you take the throttle body off.

Someone recently told me that throttle torso cleaning helped become rid of a diagnostic lawmaking 71. If you become a check engine lawmaking 71 (EGR system malfunction) yous may want to attempt this first since it doesn't cost much. Afterwards doing the cleaning, remember to reset your ECU by disconnecting the battery for a minute.

Tools Needed:

Screwdriver set
Socket wrench set
Socket extensions
Small scraper to remove carbon
Torque wrench

Parts/Supplies Needed:

Throttle body cleaner
Throttle body gasket = 22271-50010
Shop towels

i) If you lot want to exist official you can drain some engine coolant; steps i-4. I have found this step tin be bypassed since the coolant hose that goes through the TB is i of the highest points in the cooling system. Y'all may go a few coolant drips when you disconnect the bypass hose in footstep 9 but it can plugged with a cheap plastic pen.

2) Remove air intake and engine covers . Steps 3-10.

3) Disconnect the throttle position sensor.

iv) Disconnect the iii cables and and then loosen the cruise control cable bolt.

5) Remove this hose then you have some room to work.

six) Disconnect these three vacuum hoses.

7) Undo the 4 12mm bolts that hold the throttle torso on.

8) Disconnect this coolant hose hither. This one was a real pain, it took forever!

9) Unclamp the other two hoses on the throttle body and and so pull the throttle body off. This is where you'll accept to do whatsoever works best for you. Information technology's a really tight fit, which makes it hard to take off. I unclamped the big coolant past-pass hose first and so pulled the throttle body off. After that I asunder the smaller coolant hose and so the throttle body was completely off.

Here's a look into my air intake chamber with the throttle body off.

Here'south what the main side of the throttle trunk looked like airtight, non then bad....

...however the side that faces the air intake chamber was horrible! At that place was almost 1-2mm of carbon build upwardly on it.

10) Clean the throttle body. I used STP throttle body and air intake cleaner. I started by spraying the cleaner on, letting it sit a while, and then wiping it off with a rag. There was just too much on in that location to do it that way, it needed to exist scraped off with a screwdriver. Using a flat screwdriver I was able to go well-nigh of the carbon off fairly quickly. Once the majority of it was off I used the cleaner and rags to finish it up.

Clean.

xi) Make clean upward the air intake bedroom as much as you lot tin. I scraped off equally much as I could and then used the STP cleaner. When it was make clean I replaced the throttle body gasket (part # 22271-50010) with a new one.

12) Connect the small coolant hose and and then put the throttle body back on. Torque the iv 12mm bolts to 13 ft-lbs (185 kg-cm, eighteen N-m). Finish connecting the other hoses.

13) Put everything back in reverse order of removal.

14) Follow steps 16-23 for filling the coolant, if you drained any.

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Terminal revised: Sun, 04-Mar-2018 09:22:41 CST