seems to loose power!!!!!!!!

[19Stangnotch87]

Hey whats up guys,
Im havin promblems with my 03 gt, i think i might be needing some spark plugs or something, being that i havent changed them since i got the car. it had 53k and now it has 61k?????? the reason being is that when i hit the gas balls out it dosnt seem to (Go) u know it kinda takes awhile then reacts or maybe my tps is jacked? idk if u guys can give me some advice or something i would appreciate it thanx.
If i do decide to change the plugs whats best? include part#'s if possible thanx once again

 

[twogts4us]

Autolite 764, NGK TR-55, Motorcraft AWSF-32C - these are all good copper plugs in the stock heat range (which is what you want, unless you are running a power adder). Copper conducts electricity better but won't last as long as some of the more expensive plugs available. But for performance, most guys (and gals!) use copper plugs.
I'd swap out your fuel filter first though...a clogged fuel filter can cause the symptoms you are describing. The filter is cheap (the Motorcraft is less than $10 bucks) and is very easy to swap (although it is underneath the car, in front of the gas tank). After you pull the old filter, try blowing thru it, then blow thru the new filter - you'll be amazed at how clooged these filters can get and you'll wonder how it could even run with a filter that clogged - trust me. I chg mine every 6 months now. You'll need a fuel line disconnect tool, also available at any auto parts store for just a couple bucks...

 

[lvmustanggt]

Autolite 764, NGK TR-55, Motorcraft AWSF-32C - these are all good copper plugs in the stock heat range (which is what you want, unless you are running a power adder). Copper conducts electricity better but won't last as long as some of the more expensive plugs available. But for performance, most guys (and gals!) use copper plugs.
I'd swap out your fuel filter first though...a clogged fuel filter can cause the symptoms you are describing. The filter is cheap (the Motorcraft is less than $10 bucks) and is very easy to swap (although it is underneath the car, in front of the gas tank). After you pull the old filter, try blowing thru it, then blow thru the new filter - you'll be amazed at how clooged these filters can get and you'll wonder how it could even run with a filter that clogged - trust me. I chg mine every 6 months now. You'll need a fuel line disconnect tool, also available at any auto parts store for just a couple bucks...

I am in need to change fuel filter but our ford wants $ 23.00 for it and none of the auto store carries motorcraft fuel filter. Where can I get them for less ?

 

[Killa]

I am in need to change fuel filter but our ford wants $ 23.00 for it and none of the auto store carries motorcraft fuel filter. Where can I get them for less ?

I get it from advance auto part for 6$.

 

[lvmustanggt]

I get it from advance auto part for 6$.

They don't have motorcraft, they go fram. Is that brand ok to use ?

 

[SVT32VDOHC]

DO NOT buy FRAM. Multiple threads have been made by 4.6L guys, and many have complained that FRAM cause poor performance. They switched to Motorcraft and there problems disappeared. Buy a Motorcraft. Murrays and Autozone carry them. Mine was 11.99 or 12.99.

 

[04fullitgt]

FRAM is bad, use motorcraft!!!!!

 

[2000fordstanggt]

DO NOT buy FRAM. Multiple threads have been made by 4.6L guys, and many have complained that FRAM cause poor performance. They switched to Motorcraft and there problems disappeared. Buy a Motorcraft. Murrays and Autozone carry them. Mine was 11.99 or 12.99.

i know murrays carrys motorcraft, but didnt know autozone did. do they just have a handfull of motorcraft parts?

 

[SVT32VDOHC]

Yeah, come to think of it, I could be wrong. I stay away from Autozone now, ever since they told me that my Mustang DID NOT have a 4.6L V-8, it is a 4.3L!!!! That guy pist me off!!

 

[fast97gt]

check your maf sensor

 

[fobra559]

Yeah, come to think of it, I could be wrong. I stay away from Autozone now, ever since they told me that my Mustang DID NOT have a 4.6L V-8, it is a 4.3L!!!! That guy pist me off!!

Autozone