Recently purchaced a 99 f250 sd 2wd with 107,000 miles. Can anyone recomend what plug wires I should replace the old ones with, are the bosh premium plugs worth the money, and beside the o2 sensor what else should I replace?

George

 

gjvoight:

I would suggest using Motorcraft wires. Spark plugs are a toss up. Most folks say to use the Motorcraft platnium plugs. I personally have had very good results with Bosch platniums. Just remember to gap them correctly and to use dilectric grease on the plug boots.

Tune-up parts:
-PCV
-Air Filter
-Fuel Filter
-Wires
-Plugs

-hooD

2002 F-150 4x4 REGULAR CAB
DARK SHADOW GRAY CLEARCOAT
XLT 139" WHEELBASE STYLESIDE
5.4L EFI V8
ELECTRONIC 4-SPD AUTO O/D
3.73 RATIO LIMITED SLIP AXLE
SKID PLATES
7700# PAYLOAD GROUP
TRAILER TOWING GROUP CLASS III
LT245/75R-16D OWL ALL-TERRAIN
BUILT FORD TOUGH!!!

 

Hood, what is the purpose of dielectric grease? Is your list complete? I'm getting ready for a tuneup on my 99 f250 sd as well and wanted to make sure I had all the correct parts.

 

dielectric grease helps keep moisture out, so it rules out any possible oxidation of the metal contact parts

plug wires: I've used Motorcraft and FRPP

plugs: I use Autolite Coppers since I don't mind changing them once a year. For extended use, Autolite double platinums work very well for extended intervals. make sure to only remove the plugs when the engine is cold so you don't yank out or damage the threads in the heads. Use anti-seize grease on the plug threads before you put them in.

buy a tamperproof torx bit set with a T-20 bit to remove the mass air meter from it's housing and clean it with maf cleaner spray or electrical parts cleaner. TCCoA Tech Articles

flush the cooling system with prestone system cleaner, and then with distilled water + antifreeze. Replace the coolant reservoir cap with a new oem motorcraft one. Replace thermostat and Tstat O-ring

drain the transmission fluid and drain out the torque converter. Replace transmission fluid filter and refill with mercon-V trans fluid.

Drain and refill differential.

thats what I would do in addition to what already has been said.