-
-
psyphr replied to the thread P0300 misfire on 1 3 5 7.Solved Update: so first thank you everyone who had input. First thing I tried was ground checks but I had amazing resistance I got 2ohms... -
psyphr replied to the thread P0300 misfire on 1 3 5 7.All 4 02 sensors are new but I have my parts guy sending a warranty set so I should have another new set of 4.
-
psyphr replied to the thread P0300 misfire on 1 3 5 7.Did you replace the intake manifold or the gaskets for it? I was debating doing that next but I've already dropped 1200 over the weekend...
-
psyphr replied to the thread P0300 misfire on 1 3 5 7.It is parked I have 4 other gmt800's to drive until its fixed. I mainly listened for injector pulse with a mechanic stethoscope. I'm...
-
psyphr replied to the thread P0300 misfire on 1 3 5 7.I'm going to ohm test all the injector wires and coil wires back to the ecm to see if I have a disconnect. I'll let you know what I find.
-
psyphr replied to the thread P0300 misfire on 1 3 5 7.I should add that when I first start the engine for the first 1000 rotations there seems to be no problems. If I start it and then pull...
-
I've looked at alot of other post and couldn't find something similar to my current issue. I have a 2004 Yukon XL 1500 5.3l slt. I was...
-
-
Loading…
-
Loading…
