2001 Toyota Tundra Check Engine Cylinder 7 Misfire

First they replaced plugs and one coil.

2001 toyota tundra check engine cylinder 7 misfire. It has a bad ignition misfir. The next day there is a 95 chance that the truck will start with a rough idle and a misfire. The next day i got it hooked up to a scanner and the codes read that number 7 cylinder misfire.

Then they replaced another coil. If the problem persists more tests needs to be done to diagnose the problem see Possible Causes. Engine misfiring ONLY when it rains - 2001 Toyota Tundra 47 V8 My 01 Tundra has developed a habit of misfiring when it sits overnight and it rains hard.

Cylinder 6 Misfire Detected. P0300 - RandomMultiple Cylinder misfire detected. The fuel pump or fuel pressure regulator could be the source of the low fuel pressure.

If no leak is found the next step is to replace the spark plugs. Start by checking for intake leaks intake gaskets are commonly caused by multi-cylinder misfiring. When the pressure is below the specification the engine does not receive the proper amount of fuel and will start to lean misfire.

Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 3. BurntBentStickey exhaust valve O2 sensor MAF sensor crack in cylinder camshaft sensor crankshaft sensor wiring harness engine flush and down to the ECU. Use a digital volt meterput it on the ohm scale check number 2 fuel injector should be 11 to 16 ohms if not reads zero fuel injector faultyif numbe 2 fuel injector okayuse noid light hook it to fuel injector electrical connector with fuel injector disconnected and see if pcm is firing the fuel injector noid light should blink when cranking the engineif light steady pcm not firing 2 fuel injectorif noid light dont light upthere is a open in the wiring connector 2 fuel injector.

This is what I have learned so far. Have been told many things that could be the problem. Replacing a set can be very expensive.