Well this is an old post but I figure Ill jump in anyway. I had the same problem with my heads on my 3.0 v6 2004 Ranger. After the shop told me it would be about $3,000 to fix I found Dover. I ordered 2 Cylinders with the gaskets and bolts, put them on, and the truck ran fine
..... for about 18 months.....
The idil came back worse then ever, now it gets so bad that my check engine light starts flashing and I have almost no power. I took it in thinking maybe a blown gasket, piston rings, or even a messed up cylinder wall. However the mechanic insures me that non of those would cause a the compression in one cylinder be so low. He tells me that it has to be in the heads and he wants about $1,000 to take them off and send them to his machine shop. (paid him $150 to tell me that
) Of course this is outside of Dovers 12 month warranty on there heads, I have also noticed that they no longer sell parts on eBay.
Anyway has anyone else that bought dover heads had this issue? How long have your dover cylinders been working properly?
I am debating if i should call them and order another cylinder, I would hate to see the same thing months down the road again, or even sooner with the cylinder on the other side. I hate to spend $1,000 but I know it will be done right and it would come with a 5 year warranty.