2013-03-13 Gas mileage went up from 29MPG to 32.5MPG
The car has 95,800 miles and it’s time to give it a tune up. Spark plugs, air cleaner and oil change.
After removing the air cleaner, I found out that the last service guy didn’t put back the coil packs rail screws that secure the rails. This is the main reason why I do all the maintenance myself, many irresponsible mechanics out there.
The air cleaner itself is easy to buy and replace, there is another filter from the front engine grill to the air cleaner housing that needs to clean also. I just use some windex spray and towel to wipe the grimes and dirt off.
To get to coil packs, air cleaner and coolant reservoir needs to be removed and loosen. There are 2 screws for each coil packs rails, should be removed for easy connectors removal. Lift all coil packs up until they’re freely rotated.
Use strong thumb or flat screw driver to press down the tab (until it clicks) while wiggling the connector out (careful not to break the plastic part).
I use Bosch Iridium for long lasting and performance.
I put some engine oil on threads before installing spark plugs and hand tighten the spark plug all the way, finalize with torque wrench set at 22ft-lb – when it’s clicked, it’s done. The trick is also tape the extension with the spark plug socket so it won’t fall into the deep spark plug holes.
While I was there, I checked the timing belt condition also. My 96 Audi Avant has 149k miles with original belt and water pump. I do check the belt once in a while. If people who races the car a lot, erupted engine speeds, they do tend to put stress onto the belt and break them early. I & my wife don’t race, we drive nicely, our belts do last a long time especially in the nice weather all year round of CA.
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