What does it mean when multiple cylinders are misfiring?

What does it mean when multiple cylinders are misfiring?

A misfire from two or more cylinders can be caused by many reasons from a faulty ignition system, fuel system, or internal engine failure. Many times, P0300 occurs when there are worn out spark plugs, spark plug wires, or a faulty ignition coil.

How bad is it to drive with a misfire?

An engine misfire can be caused by bad spark plugs or imbalanced air/fuel mixture. Driving with a misfire isn’t safe and can damage your engine.

How many miles does a 2000 Toyota Tundra have?

Hello all! I have a 2000 4.7 liter tundra with 208,xxx miles. I bought it a few months back and haven’t had any problems with it until now. 2 weeks ago I was driving down the highway when Noticed misfiring, loss of power and a flashing check engine light. Took it home and ran the codes, p0305 and p0155.

What to do about a misfire in a Toyota Tundra?

If you have any doubt as to were top dead center is (TDC) pull spark plug #1 and insert a long enough rod down inside and put a dial indicator on top of the rod and measure. You can almost get it perfect with the naked eye. Now looking at your belt, which is 100 times better than mine when I replaced my timing belt.

What are timing marks on Toyota Tundra 4.7?

Check your timing. Pull the top covers, line the marks up and see if anything is off. There are threads in here to show proper timing marks. On the 4.7l its NOT 0. It’s a lil dowel/tit mark on the bottom cover and the letter T on the top for your cam’s.

How does the 0 work on a Toyota Tundra?

The 0 is true TDC, the dowel is 15 degrees after TDC. By turning it 15 degrees ATDC tension is reduced on the vavle springs and you will less likely have the cam gear turn on you once the t-belt is off. Using the 0 works, instead of matching to the T you would match to the I, but a cam gear might turn on you if you happen to bump the vehicle.