inscarguy
Member
Hi all. I have a 08 4.0 that has a weird issue. When it starts cold its fine but after its used and then parked and restarted after an hour or two it stumbles on restart and puffs a little smoke( looked blue). Kinda reminds me of what a flooded carb would do. Changed both upstream o2 sensors, all vacuum lines including at canister, full tune up, cleaned maf, new gas cap, etc.
Also get a very small evap leak code once and awhile.
Any Thoughts?
Im leaning towards a leaky injector. My mechanic thinks it might be the valve on top of the tank not releasing pressure and keeping pressure at the injectors casing them to leak.
Also get a very small evap leak code once and awhile.
Any Thoughts?
Im leaning towards a leaky injector. My mechanic thinks it might be the valve on top of the tank not releasing pressure and keeping pressure at the injectors casing them to leak.