Then while observing the tightening torques listed in post #6, install the new spark plugs, replace the igniters, reconnect the wiring harness connectors (making sure that each one is locked in place, you can hear a little click as the connector engages) and then replace the relay box. Remove the old spark plugs and examine them, looking at the porcelain insulator at the tip to see what combustion deposits have formed. If you see any problem, replace the igniter. Inspect the igniters, looking at the terminals for corrosion and the plastic body for any cracking or burn marks. Then disconnect the wiring harness connectors attached to the spark igniters, and then remove the igniters.
The overall process is to remove the relay box mounted to the cowl, to improve your access to the spark igniters. The normal replacement interval is at 120K miles. What help do you need? Post #6 provides tightening torque and one suggested source for the correct replacement iridium spark plugs. (Even at Dealer prices, I would expect this to cost around $150 unless something they inspected actually needed replacing) (Even at Dealer prices, I would expect this to cost around $100 unless something they inspected actually needed replacing)
I think we disconnected 6 vacuum hoses and a few wire attachments to do it. Actually it took about 2 1/2 hours just to do 6 under the Intake Manifold It wasnt hard but very time consuming.
How to install spark plugs in 2008 altima how to#
Tighten nuts and bolts on chassis and body How to Change Spark Plug 6 It took us 2 hours and 45 minutes to change the spark plugs. _ Radiator, condenser and/or intercoolerĪdditional Maintenance Items for Special Operating Conditions _ Fuel lines and connections, fuel tank band and fuel tank vapor vent system hoses _ Brake linings/drums and brake pads/discs (I am using a 2009 Guide, as that is what I own) I have not seen your spark plugs, but in general Toyota thinks they will last 120,000 miles.
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