I dont know how many miles are on my coils and plugs,but my truck is being a little sluggish and I figure this is a good place to start.

 

My truck is nearing the 100k mark. What do you guys recommend for me to change? I have no previous records as I am the 2nd owner

 

All your fluids if you dont know how old they are and plugs and air filter is a good idea.

 

If your truck ain't missing and there are no cel's then your pissing in the wind buying new coils IMO....but if you just want to do something to your truck then it's cool.Your truck probably only needs plugs.

 

It's missing a little under load but no check engine light yet.Just seemed like the right thing to do while i got it apart.

 

Do an ohm test on your coils to measure the primary & secondary, (IMO), unless I know there is a problem with coils, I don;t change them.Pull a plug or two & inspect their condition & if your wires look origional, replace them as well. Plugs & wires make an amazing difference. If just buying a used vehical, (unless papers show otherwise), I always buy a Hanyne's book for the vehical along with change plugs, wires, Air filter, all fluids, including flushing the cooling system & new antifreeze. PCV valve & vacuum hose(s) if feels or looks brittle.I inspect the color & condition of brake fluid & change this if any questions,I jack er up & remove the tires to inspect the brakes & rotar condition, grease anything with a fitting, check for play in anything without a fitting, also change belts & hoses if any wear what so ever. Sounds like a lot but if not sure how the vehical has been maintained, doing the above will offer you a look into the history & help prevent you from walking after it died going down the road.Shortly after the above I also change Altenator & water pump, EGR valve inspection & cleaning, MAF inspection & cleaned with MAF cleaner. (this I do while changing the air filter & the MAF sensor is right there. Plugs, wires, fluids & a visual inspection to me is a must first day, the balance of the above I complete within the first 3 weeks of having the vehical on the road. I drive to much daily to chance breaking down for simple reasons. We learn from our mistakes, lol, always remember there is a reason the previous owner sold the vehical!! Good luck & best to you!

 

What plugs would you guys recommend? Does the timing belt need to be replaced like in my Honda at 100k?