[NOT 5.7L] 2001 5.3L low engine idle

[OR VietVet]

Thanks for the input. Did use scan tool with live data and RPM's at 550 w/temp at 195. I'm thinking I'll try the adjusting screw to see if I can hold the 625 RPM's with running temp and no cold start issues down the road. Otherwise I'll see if the PCM can be programed to hold the 625 idle in the future. Thinking after 25 yrs of having the throttle resting plate hit the adjusting screw could have warn to the lower idle position vs the PCM being off. Seems the no start issues went away once I cleaned the throttle body and MAF sensor. So could be the low idle is a non issue. Only time will tell now. Don't have any stalling issues or rough idling issues and no codes on scannner.

Sooooo, the recommended maintenance issues helped, huh? Cleaning the MAF and the throttle body are maintenance and not repairs. But like some maintenance items, so many times, it is out of sight and out of mind.

 

[phil57]

Sooooo, the recommended maintenance issues helped, huh? Cleaning the MAF and the throttle body are maintenance and not repairs. But like some maintenance items, so many times, it is out of sight and out of mind.

Yes they did, thanks to all for your help!