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Dan, Technician
Category: Chevy
Satisfied Customers: 23739
Experience:  Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
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OK here we go. 92 s10 blazer 4.3 w vin code. 135 plugs are

Customer Question

OK Dan here we go. 92 s10 blazer 4.3 w vin code. 135 plugs are fine 246 covered in carbon. Rough idle with loud tap on right side of motor changed the spider injectors coil plugs cap rotor wires. Chasing demons and getting no where. Also gas in oil.
Submitted: 1 year ago.
Category: Chevy
Expert:  Dan replied 1 year ago.

A loud tapping isn't a good sign, have you done compression tests? If not, that is where I'd start. If compression is low it will also cause gas in oil. If compression is low your pretty much looking at engine replacement. Let me know what readings are, thanks.