Adding oil and the number coming up slightly doesn't always mean rings. It could still be valves. But never know till you take it apart. Or you could put a bore scope through your spark plug hole. If you have a bad set of rings on #3 then you'll be burning a little oil in that cylinder and you should have a black top on your piston except for a slightly clean outer edge.
Cylinder 3 & 4 Misfire
- Thread starter Doc2012
- Start date
BrianSD_42
New member
This damage is from the water event?
Doc2012
Senior Member
Doubt it. Never had a problem before the head gaskets went. That's when everything went to shit.
Probably going to add a 2uz to the fleet guys. Unless I can figure out just WTF is going on. Just need to get the money up to be able to do it. LOL.
Singtoe
New member
Singtoe
New member
Singtoe
New member
here you go
https://www.iaai.com/Vehicles/VehicleDetails.aspx?auctionID=14254656&itemID=15052433&RowNumber=4&loadRecent=True
https://www.iaai.com/Vehicles/VehicleDetails.aspx?auctionID=14271862&itemID=15041412&RowNumber=6&loadRecent=True
https://www.iaai.com/Vehicles/VehicleDetails.aspx?auctionID=14274762&itemID=15307015&RowNumber=0&loadRecent=True
https://www.iaai.com/Vehicles/VehicleDetails.aspx?auctionID=14254656&itemID=15052433&RowNumber=4&loadRecent=True
https://www.iaai.com/Vehicles/VehicleDetails.aspx?auctionID=14271862&itemID=15041412&RowNumber=6&loadRecent=True
https://www.iaai.com/Vehicles/VehicleDetails.aspx?auctionID=14274762&itemID=15307015&RowNumber=0&loadRecent=True
Singtoe
New member
Last one. Firebird. You could call it the LS1-runner
https://www.iaai.com/Vehicles/VehicleDetails.aspx?auctionID=14277989&itemID=15104187&RowNumber=0&loadRecent=True
https://www.iaai.com/Vehicles/VehicleDetails.aspx?auctionID=14277989&itemID=15104187&RowNumber=0&loadRecent=True
LittleCaesar
New member
My vote is to use the 3UR, but how you could get it to fit is anyone's guess. Plus I would think it would fetch top dollar at the auction.
If not, grab the 2UZ with < 100,000 miles on it and begin the build.
FYI, when my cuz's Civic took on water in two cylinders and we pulled the engine, the walls had similar rust but the rust was more widespread and had moved its way to the top of the piston. I could see the water in the oil on the dipstick in his.
If not, grab the 2UZ with < 100,000 miles on it and begin the build.
FYI, when my cuz's Civic took on water in two cylinders and we pulled the engine, the walls had similar rust but the rust was more widespread and had moved its way to the top of the piston. I could see the water in the oil on the dipstick in his.
Singtoe
New member
Doc had a nice creamy mocha fluid in his drain pan.
Singtoe
New member
Doc had a nice creamy mocha in his drain pan.
I'll put anything in it. 3UR motors fetch 5 to 6 grand. I am game for anything.
bobbysaucedo0
New member
I’m a young kid at 22 years old I love my 4Runner but recently check engine light came on as well as Gsc tracking on /off ... I also read the same exact codes p0300 p0303 p0304 cylinder misfires ... my car runs fine for now cause I have to get to work me being a young gun I don’t have a lot of money I have no idea what the issue is my car shakes when I drive it . How do you fix or what is the best route for me . (2002 2wd 4Runner , 230,000 miles I also waste so much gas I need help)
You have a misfire on cylinders 3 and 4. It's always a good idea to start with replacing spark plugs (dual electrode) and wires if they haven't been done in the last 50k miles or you are unsure on when they were changed.
