Igintion module

[GT Rob]

Going replace my igintion module what tool and size is needed for the screws that hold it on

 

[Magic]

I believe they are small 5.5mm bolts (module to heat sink).

 

[CC'S95GT]

what makes you think the ICM is bad?
I have over 200,000 miles on my OEM one.

 

[GT Rob]

Just from what I read dim light shift points ideal surge at times it wants to die. The dis is not even a year old

 

[CC'S95GT]

FWIW. I got a remanned dizzy and it didn't last a week..
Where is your timing set?
What engine mods do you have.
Fox's have problems with the ICM/TFI module not sn's. I'm not saying it's not, just that it's unlikely.

 

[GT Rob]

95 5.0 cold air intake water pump and crank pullies full exhaust no cats with 02 sensors 373;gears timing is at normal setting

 

[toyman]

Quite honestly I don't think you have an ignition module issue. Idle surge is definitely not related to the TFI module nor the dimming of lights. As the causes of an idle surge have many possible fixes you really need to check for trouble codes (DTCs) but first check for a vacuum leak. The dimming of the lights may be an alternator, battery or grounding issue. You need to do some diagnostic sleuthing.

 

[CC'S95GT]

since you have a CAI, try cleaning the MAF and air temp sensor.
the 5.0 are getting older and were seeing more and more TPS problems. I had a hanging idle and a dead spot in the TPS was the cause.
Stock timing is 10*btdc (spout out) I'm running 12*.

 

[GT Rob]

I just changed the alternator back in January I put my meter on the battery and it reads between 14 12 volts

 

[CC'S95GT]

it should read 14.2-14.8vdc at any rpm. If your reading less than 13 with the car running, something is wrong.

 

[Addermk2]

it should read 14.2-14.8vdc at any rpm. If your reading less than 13 with the car running, something is wrong.

Anything higher than 13.6 loaded at idle should be fine.