Hi guys,
I hope that you are all doing well. I have a 2004 4Runner with the V6 (1GRFE). I suspect that I have a bad head gasket (loosing coolant, rushing waterfall sound behind the dash, failed spark plug coil pack on cylinder 6, etc).
My mechanic recommended that I replace the coil packs since the truck is 20 years old... I replaced them with new Densos. It's no longer misfiring, so that's good.
Even though I changed the coil packs, when starting the truck, it bogs down for about 4 to 5 seconds and then it runs fine.
I am seriously considering replacing the head gaskets on the truck but would like to verify the part numbers. I have the following info from the Toyota parts website:
1111531031 -
2004 Toyota 4Runner 4.0L 4WD Engine Cylinder Head Gasket - 1111531031 - Genuine Toyota Part
1111631011 -
2004 Toyota 4Runner 4.0L 4WD Engine Cylinder Head Gasket - 1111631011 - Genuine Toyota Part
Can someone confirm that these are correct? I am assuming that one goes on the left hand side and the other on the right?
Also, is there anything else I should order? The intake manifold gasket was replaced last year, so we are good there.
Any info would be greatly appreciated!