rough idle when hot 5.3convertible
Posted: Mon Dec 30, 2019 11:43 pm
Hi there,
My 89 5.3 is running well starts perfectly when cold,slightly rough on tickover,but when i start it when its at temp it starts but is very rough until i rev it a few times then it settles out.
I'm thinking injector couplings/wiring harness
.. all the other ignition components have been replaced..oil pressure perfect..
Any thoughts?
Regards,
Scott
My 89 5.3 is running well starts perfectly when cold,slightly rough on tickover,but when i start it when its at temp it starts but is very rough until i rev it a few times then it settles out.
I'm thinking injector couplings/wiring harness
.. all the other ignition components have been replaced..oil pressure perfect..
Any thoughts?
Regards,
Scott