New member here. Long time owner with a unique issue on my 2010 5.7L.
#7 ignition coil keep frying. I've been thru 5 coils in less than 2 months. Truck has 286K mi, always kept in good shape. Wondering if anyone else had/has this issue.
I gave up testing on my own and my mechanic has the truck now. All I can think of is bad head gasket (slight bubbles not stopping in radiator), bad fuel injector (cylinder running lean). He's gonna compression test it tomorrow.
I replaced the spark plugs and use only Denso coils from a denso dealer.
Any help is greatly appreciated
#7 ignition coil keep frying. I've been thru 5 coils in less than 2 months. Truck has 286K mi, always kept in good shape. Wondering if anyone else had/has this issue.
I gave up testing on my own and my mechanic has the truck now. All I can think of is bad head gasket (slight bubbles not stopping in radiator), bad fuel injector (cylinder running lean). He's gonna compression test it tomorrow.
I replaced the spark plugs and use only Denso coils from a denso dealer.
Any help is greatly appreciated