Speedaddict38

also are the plugs and fuel filter an easy switch out ?

JimC

Best plugs are the OEM autolites (5143 as I recall) - cheap and work fine. Don't get the expensive Bosch - with the waste spark system the 4.0 uses no one seems to run well with those and the shop told me everyone brings those back with complaints.

Relatively easy to do for both the plugs and the fuel filter. Check out the write ups. The spark plugs make sure you start them by hand and don't try to start them with a wrench. If they are off a little bit you will wreck the threads if you use a wrench but with your hand you will feel the resistance and be able to back off and restart the process.

Speedaddict38

thanks for the info

2005Redfire6

I heard the E3 spark plugs are pretty good.

Speedaddict38

where is the fuel filter located at ?

The_Enforcer

its under the drivers side of the car, covered by a black plastic cover. check this out
https://mustangforums.com/forum/4-0l...with-pics.html

Speedaddict38

thanks !

The_Enforcer

no worries man i did it the other day withour even jacking up my car, its really easy took me maybe 15 minutes. i was 10k miles over due for the fuel filter, wow!! i need to do that more often.

2005Redfire6

Can you feel the difference? I heard it has better throttle response. I have 39k miles should I change mine? Alot of people tell me no.

The_Enforcer

i think its supposed to be changed every 15k, and hell yea i felt a difference in throttle response. for $15 just do it!!