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TBI Cleaning

From 2002 Pontiac Grand Prix, documented by Chris Bradley.

18 photos
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2002 Pontiac Grand Prix - Open the hood. 2002 Pontiac Grand Prix - Remove the oil cap and extension. 2002 Pontiac Grand Prix - Remove the engine cover. 2002 Pontiac Grand Prix - Put the oil cap and extension back in place. 2002 Pontiac Grand Prix - Unplug the IAT sensor. 2002 Pontiac Grand Prix - Unplug the IAT sensor. 2002 Pontiac Grand Prix - Undo the clamp at the airbox and remove the air intake hose. 2002 Pontiac Grand Prix - Unplug the MAF and TP sensors, and the IAC valve. 2002 Pontiac Grand Prix - Disconnect the EVAP vacuum line. 2002 Pontiac Grand Prix - Remove the throttle cable bracket (2x 10 mm bolts) and disconnect the throttle and cruise control cables. 2002 Pontiac Grand Prix - Remove the throttle body support (1x 8 mm bolt), slightly rotate the bracket towards the front of the vehicle, remove the throttle body bol… 2002 Pontiac Grand Prix - Admire how dirty the intake manifold is. 2002 Pontiac Grand Prix - Admire how dirty the throttle body is. 2002 Pontiac Grand Prix - Admire how dirty the throttle body is. 2002 Pontiac Grand Prix - Throttle body cleaned up. I didn't take pictures, but I removed all the sensors and the butterfly and cleaned everything thoroughly. 2002 Pontiac Grand Prix - Throttle body cleaned up. I didn't take pictures, but I removed all the sensors and the butterfly and cleaned everything thoroughly. 2002 Pontiac Grand Prix - Throttle body cleaned up. I didn't take pictures, but I removed all the sensors and the butterfly and cleaned everything thoroughly. 2002 Pontiac Grand Prix - Back together.