1996 GMC Suburban 2500 Q&A

1996 GMC Suburban 2500 Question: What make an engine run hot in only one cylinder?

misfire code p-1345 -
Answer 1
All OBD II misfire codes are as follows, PO 300 to PO 308 for a V8! Why do you think it's overheating on one cylinder only? Do you mean misfire on only one cyl.? -
Comment 1
Thanks for your response. The information on OBD-ll code is new to me I will recheck that. the reason for one cylinder running hot is just a feel. It looks like the heat off the engine is more pronounced to the rear of the engine (#7 cylinder). The temp. gauge reads normal along with oil pres. I am going to borrow an infrared eat gun to see more accurately. Could the rear main bearing? and if so is there any way to check without pulling oil pan? -