OEM Opti? MSD does have an external adjustment but you will get an MIL if you go much and you don't really have a TDC reference unless you take the time to add one and degree the damper ( which isn't keyed so could move) or digital timing light to compensate. You should check the vacuum hose from the Opti to make sure it's pulling air. Water pump does need to come off among most everything else to get at it. The screws holding the cover are practically un-removeable unless you do it properly and the O-rings make it equally difficult to replace. I switched to hex type when I get them out instead of the philps it comes with. Rotor and cap should be OK at 25 K though.
Check all the vacuum hoses. I changed the cruise control hoses years ago because they made your hands black just touching them so were due to crack. I used some silicone replacements because they stay more flexible and seal better. Probably could use a serpentine belt too. It will likely show cracks and chunks missing on the grooved side.
You might want to change the PCV and clean your EGR. There is a link in one of the posts that goes through it thoroughly. Injector cleaner? I dump a bottle of STP cleaner in the tank at the oil change.
Unfortunately, we don't have cabin filters. Wiper blades are likely due. BTW the reflex type are all too tall and difficult to find just replacement blades. I bought the whole assembly to strip the blades and mount on my OEM arms.
What mileage are you at? Tranny fluid and rear end fluid might be on the list. I've put Royal Purple synthetic in both. Should be a little performance there as well although the peace of mind is worth at least as much.
Have you looked at your rubber suspension bushings? From shocks to control arms, you might be in for a surprise unless it already has urethane conversion.
What about coolant? Supposed to be changed every couple of years although most people don't. You are supposed to add the pellets with the coolant because of the aluminum in the motor but I like water wetter better. To drain it properly, I pull the knock sensor on the side of the block. You can have it flushed obviously. Might be the time to do a thermostat although I won't get into the controversy about the temp but I do run a 180.
If you want to get really serious, look at the random misfire index. I've come to find out, if the engine isn't misfiring, the misfire index will tell you if the timing chain is going or gone. Index will be around 800 when all is well, otherwise .... eventually you will get an MIL for random misfire that can't be fixed with tune-up stuff.
O2 Sensors have a life! They will drift even if they appear to be functioning. The ones in front of the cats in particular since that's the signal for the closed loop tuning.
Good hunting!
|UPDATED|12/18/2013 9:25:45 AM (AZT)|/UPDATED|
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