bamspeck
New Member
I have an 01 Tahoe with 190k miles.
At around 100k the idle RPM started getting lower and lower till finally it would die. It would never throw an engine code it would just sputter out and die. It got to where it would die almost every time I pulled into a parking spot while turning the wheel and using the brake at the same time.
I finally found the fix after dealing with it for about 3 months. Clean the throttle body.
Simply remove the air intake tube between the air filter and the throttle body. Make sure you buy the intake cleaner that is 'Sensor Safe' and wear some type of protective gloves. I used ChemTool intake and throttle body cleaner.
Rotate the servo actuated butterfly valve and spray the crap out of everything in and behind the throttle body. Make sure you have plenty of paper towels to catch all the black gook that comes out. (It helps if you have a spot to park the vehicle at a slightly nose down angle.) What you really need to clean well is the area around the edges of the butterfly valve and where it makes contact while it's closed. You'll also want to clean the heck out of the hole in the upper left where the Idle Air Control valve is located.
I just cleaned mine again yesterday and went through about 25 blue shop paper towels. It had started idling low again and was completely covered in black before I cleaned it. Runs like new again.
At around 100k the idle RPM started getting lower and lower till finally it would die. It would never throw an engine code it would just sputter out and die. It got to where it would die almost every time I pulled into a parking spot while turning the wheel and using the brake at the same time.
I finally found the fix after dealing with it for about 3 months. Clean the throttle body.
Simply remove the air intake tube between the air filter and the throttle body. Make sure you buy the intake cleaner that is 'Sensor Safe' and wear some type of protective gloves. I used ChemTool intake and throttle body cleaner.
Rotate the servo actuated butterfly valve and spray the crap out of everything in and behind the throttle body. Make sure you have plenty of paper towels to catch all the black gook that comes out. (It helps if you have a spot to park the vehicle at a slightly nose down angle.) What you really need to clean well is the area around the edges of the butterfly valve and where it makes contact while it's closed. You'll also want to clean the heck out of the hole in the upper left where the Idle Air Control valve is located.
I just cleaned mine again yesterday and went through about 25 blue shop paper towels. It had started idling low again and was completely covered in black before I cleaned it. Runs like new again.
