im taking my 03 4.6 v6 f-150 112,000 miles on it, into the dealership in the next couple days. im wondering if i can get some input on what i should have done as to prevent future problems. im thinking spark plugs, spark plug wires, trany fluid change, radiator fluid change, distributor cap replacement, fuel pump replacement, brakes and rotors replaced, and a new belt. is there anything else i should be doing to the truck???

thanks

 

Do you have a 4.2 L V6 or a 4.6 L V8? There is no 4.6 L V6.

Neither one has a distributor cap and only the V6 has plug wires.

A fuel pump is quite costly and it's inside the gas tank. You don't change those till they go bad. Change the fuel filter though.

 

You don't change brakes till they go bad either.

 

it is a 4.2 L v6

 

If your dealer is trustworthy, simply take it in for a complete inspection and see what they recommend be done at this time. A full inspection and diagnosis should be less than $80, most dealers menu price this, it's not billed by the hour.

 

Some input on the plugs -- I had new plugs and wires installed in my '97 Ranger (2.3 four-banger) this past fall at a tad over 100k miles. It was an expensive job due to the amount of crap that had to be pulled off the engine simply to access the plugs, and as far as I can tell, the repair had no impact whatsoever on engine performance.

If I had to do over, I'd be tempted to skip this preventative maintenance step simply because it was a lot of money to spend for no noticeable impact on engine performance. Something you may want to think about depending on how big of a job it is to do the plugs on the six-cylinder engine.......

 

ddelwo, it's a 20 minute job to change the plugs on a 4.2, all 6 are visible and reachable with a ratchet, plug socket, and extension without removing anything. The only reason plug wires take longer than that is the drivers' side wires run around the back of the engine from the coil pack on the passengers' side valve cover.