02 Tahoe choking out on start up
June 18th, 2019, 7:29 AM
#1
CF Junior Member
Thread Starter
Join Date: Apr 2019
Posts: 30
Likes: 0
Received 0 Likes
on
0 Posts
02 Tahoe choking out on start up
My 5.3L Tahoe LT vin Z starts very smoothly but the rpm goes to zero within 3 seconds. Most cold starts will not do that but when its at temperature and I allow enough time for the temperature to come down half way then it will choke out. I replaced the PCV valve twice but saw no change. What should I be looking for? I just replaced the plugs and wires thinking it would help too but no improvement there.
Last edited by Makemyenginerun; June 18th, 2019 at 7:31 AM.
June 19th, 2019, 1:26 AM
#2
CF Monarch
My 5.3L Tahoe LT vin Z starts very smoothly but the rpm goes to zero within 3 seconds. Most cold starts will not do that but when its at temperature and I allow enough time for the temperature to come down half way then it will choke out. I replaced the PCV valve twice but saw no change. What should I be looking for? I just replaced the plugs and wires thinking it would help too but no improvement there.
