I have a 2000 Honda CR-V with 140,000 miles. About a year ago, the check engine light started to come on from time to time. I took it to a shop which replaced the plugs and wires, and gave it a SMOG II test which it passed. Everything was fine for a while.
About five months ago the CEL starting coming on again. I checked the plugs and they looked fine. I had my hands full with other matters so didn't follow up.
About a two months ago, the car developed a rough idle and would occasionally stall at low speed. I've taken it to a reputable independent shop. They found codes for misfiring in cylinder #3 and in all cylinders. They've changed the plugs and checked the rest of the ignition system and the fuel injectors. The misfiring continues. The shop owner is recommending pulling off the valve cover and checking for damaged valves.
In parallel, I've found out that many Honda owners have experienced valve damage by following the recommended valve adjustment interval of 105,000 miles. As my car is out of warranty, I don't expect any help from Honda. (This is the last time I buy a Honda!)
My question is this: if one or two valves are damaged, what should I do? Just replace those valves? Or go for a complete valve job? Or get a remanufactured head? I was planning to keep the car for another two years, but not much longer. Advice?
Also: any idea what a complete valve job should cost at a local shop in central California?