Oathkeeper
TYF Newbie
- Joined
- Apr 13, 2022
- Posts
- 5
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2001 Tahoe LS 5.3 I keep getting a misfire code in either 4 or 7 also have the code for primary secondary circuit on both of those cylinders, I've replaced plugs,wires,the ignition coil sub harness,map sensor,, replaced knock sensor and intake gaskets, valve cover gaskets,did a compression test and leak down test everything was right, what throws me off is if either cylinder misfires I can disconnect the connector,wait a minute and it works like it should until I turn the Tahoe off or I hit a bump in the road, and now I smell gas fumes while the car is running, idk what else to do,I've tried finding where my grounds are located but no luck ,any advice would greatly be appreciated