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My light comes on for a few days and then goes off for a week. So all in all it has come on three times. It all started when I decided to change my spark plugs, I changed them out and cranked it up and it started and idled fine so it was dark and went inside.
When I drove to work the next morning the light came on and the truck started running really rough, it felt like a misfire. I took it to Advace Auto and the plugged in to the diag. port and it gave a misfire in cyl 6. I bought a new plug and put it in and she ran perfect and light went off.
A couple days later the light came on and I got them to plug in again and it spit back a Bank 1 too lean code. He cleared it and it stayed off for about a week and then came on for a few days before going back off. I put Lucas fuel inj cleaner in las time I filled up and it seemed to stay off for a little bit longer this last time.
Is this just a clogged fuel injector or what? How hard is it to change the inj's if I have a haynes man.
Oh yeah its a 99 Silv Z71 5.3
Thanks
When I drove to work the next morning the light came on and the truck started running really rough, it felt like a misfire. I took it to Advace Auto and the plugged in to the diag. port and it gave a misfire in cyl 6. I bought a new plug and put it in and she ran perfect and light went off.
A couple days later the light came on and I got them to plug in again and it spit back a Bank 1 too lean code. He cleared it and it stayed off for about a week and then came on for a few days before going back off. I put Lucas fuel inj cleaner in las time I filled up and it seemed to stay off for a little bit longer this last time.
Is this just a clogged fuel injector or what? How hard is it to change the inj's if I have a haynes man.
Oh yeah its a 99 Silv Z71 5.3
Thanks