September 14, 2008Well I hadn''t started my truck in four days and I left something plugged in so the battery died. I get it jumped off and start driving, the next stop I come too the truck feels like it is barely running (which it is). Its hardly staying running, like 300-400 rpms. It actually died once today coming out of my driveway. It cranks right up and idles normal for 10 seconds and it drives normal down the road. What do ya''ll think it is, fuel pump, computer....?????
Forums : Silverado (c/k) (1999 - 2006) : Very low idle (667 Views)
September 15, 2008that happened to me after i used my programmer . it would die if i turned the wheels hard and backed up it would die. Also if i was on then off the throttle quickly the rpm''s would drop off and die.
September 15, 2008Clean your MAF filter with MAF cleaner **or** similar product and any coking that might be on the throttle body blade **or** around the blade.
Just did it to my brother-in-laws truck for him for the exact low idle. It worked like a charm. It should idle between 500-600 rpms
September 15, 2008Thanks Steven, but why would it just randomly start acting up after the battery crapped out?
September 16, 2008Alright I cleaned the maf, also looked at the throttle body plate(clean) and nothing changed at all. Did maybe the low voltage damage a sensor *or* something. Truck runs normal when on the throttle.....??????
September 16, 2008mine idles at 350 rpm in gear after it warms up, doesnt stall though.
my buddies 82 K5 with 350 ant stock 4 barrel card idles there too, he made it do that though.
September 16, 2008Yeah, but the ps pump with the rpm''s so low has killed the motor twice today while trying to park. It actually idles higher and closer to normal with a/c going.
September 16, 2008Dang, it worked for my Brother-in-laws truck. His was doing the same low idle and almost stalling.
I wouldn''''''''t know what else to check other than see if you have any Codes stored in the PCM. Possible throttle position sensor I''m sure others will chime in... if they ever get here
September 16, 2008I tested alternator today too, checked out good
September 20, 2008intake air control unit/sensor. clean(minimum), change(recommended). will correct your concerns.