Is it o.k. to use Motorcraft AGSP32FM spark plugs?
- Thread starter Ptatohed
- Start date
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93rev2sev
SHO Member
32fm is the replacement.
there are lots of plugs now. SHOTimes infomight be a little out dated.
there are lots of plugs now. SHOTimes infomight be a little out dated.
jayro
SHO Member
I've always used Autolight Double Plat's and have never had any problems. I thought I read somewhere that they were the same as motorcraft just under a different name. I think peoples main concern is that the spark plug boots seal at the top to keep water out of the wells.
Jeremy
Jeremy
Last edited:
Motorcraft AGSP32PP are no longer being made. They can be found but you've gotta look for them The AGSP32FM are the replacement plugs offered by Motorcraft. There are several other plugs that members are running. A quick search should produce some results for you.
hawkeye18
Sorta cares
Autolite 3924 plugs are also a perfectly good replacement. APP3924 is the standard, I believe, but XP3924s are good also.
luigisho
SHO Member
PP are double platinums the fm are the fine wire plugs now listed as the oem replacements.
You don't need to remove the intake to change plugs.
You don't need to remove the intake to change plugs.
jthod
Mr. Goodwrench
You don't need to remove it, but it makes it a little easier on the knuckles. The only concern with removing is the gasket, which if it's been on there for a long time, it's more than likly going to come apart when you take the intake off.
I've heard of using black spraypaint to make them seal again, but I haven't done it myself. FWIW and intake gasket set is about $35.
I've heard of using black spraypaint to make them seal again, but I haven't done it myself. FWIW and intake gasket set is about $35.
Storm-Chaser
New Member
While you don't need to remove the intake, it will make it much easier. Due to the engine position in the engine compartment, for ATXs it's not difficult, for MTXs it is quite difficult to change the plugs with the intake still on - IMO.
O.k., all done. 
Thanks for the help guys. It was very easy - I should have done this a long time ago (I've had the new plugs sitting in my garage for 3+ years). I used the Motorcraft AGSP32FM we talked about. I left the gap as-is which was 0.044" out of the box. It was frustrating because neither the owner's manual nor the Chilton's ever discussed the plug gap. I searched shoforum and found 0.042-0.046" as the required gap. I hope that's right?? My old plugs (AGSP32PPs) looked good, condition-wise, but they were gapped to about 0.070"!! I did not remove the intake manifold and I honestly don't see why anyone would (just to do the plugs). The front three plugs are a slam dunk, the rear ones have only minor things that need to be disconnected/moved out of the way to get to the plugs. But I do have an auto (Storm-Chaser said auto's are easier to get to than 5-speeds - I did not know that). I used anti-seize on the threads and dielectric grease on the porcelain/electrode. I torqued the new plugs to 20 ft-lb.
So, anyway, I am glad to finally finish something I have been putting off for too long.
Thanks again guys.
Thanks for the help guys. It was very easy - I should have done this a long time ago (I've had the new plugs sitting in my garage for 3+ years). I used the Motorcraft AGSP32FM we talked about. I left the gap as-is which was 0.044" out of the box. It was frustrating because neither the owner's manual nor the Chilton's ever discussed the plug gap. I searched shoforum and found 0.042-0.046" as the required gap. I hope that's right?? My old plugs (AGSP32PPs) looked good, condition-wise, but they were gapped to about 0.070"!! I did not remove the intake manifold and I honestly don't see why anyone would (just to do the plugs). The front three plugs are a slam dunk, the rear ones have only minor things that need to be disconnected/moved out of the way to get to the plugs. But I do have an auto (Storm-Chaser said auto's are easier to get to than 5-speeds - I did not know that). I used anti-seize on the threads and dielectric grease on the porcelain/electrode. I torqued the new plugs to 20 ft-lb.So, anyway, I am glad to finally finish something I have been putting off for too long.
Thanks again guys.
hawkeye18
Sorta cares
The plug gap is indeed .044. I don't know why your old plugs were gapped to .070, but I bet you'll notice a performance increase!
Also, good job! If you can do the plugs, you can do anything on this car.
You will more than likely have to remove the intake to do the wires (depending on how they're routed), but it's not really as hard as it looks. Just take your time and comb over for vac lines, coolant lines (by the throttle body) that you may have missed.
Also, good job! If you can do the plugs, you can do anything on this car.
You will more than likely have to remove the intake to do the wires (depending on how they're routed), but it's not really as hard as it looks. Just take your time and comb over for vac lines, coolant lines (by the throttle body) that you may have missed.
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