Thread: 96 Ford F53 460cu in runs rough at operating temperature only.

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Denny,

What bothers me is that it runs perfect with tlots of power when the outside temp is cold. Keep in mind that it ran perfectly when the outside air temperature was below 50f last Monday. This would not be a charcteristic of plugs, wires, cap/rotor etc. I did 65mph for an hour and a half and it only started near the end of my trip when the outside temp rose to about 51 (I have an outside temp readout on my electronic compass) When it starts its thing is perfectly predictable looking at the temp guage as long as it is over 50f. I will be getting the Air intake and coolant sensore later this morning and will let you know the results. I realy appreciate your input (that goes for everyone else also). I see by your website that we are the same age!

I did precisely the following:
1.I mounted the new coil properly (it was just tyraped temperarily)
2. I unpluged one at a time the spark plug cables to measure the resistance of cables 1,3,5,7 as they are the easiest to get to (7.5k - 10K- a little high??) and reconnected them. What shpould I be reading on these?
3. I measured the idle voltage of the TPS. (1.1v)
4. I then pulled the connectors of the Air intake and coolant sensors and scraped the pins/recepticals and sprayed some contact cleaner and reconnected.

I went for a drive and the problem is gone - lots of power!!! Was it oxidixed connector contacts?????? ............is it fixed or just in remission?????????????

Now I can't make it happen and it is almost 80 out!

go figure!

Originally Posted by fallowfield

I did precisely the following:
1.I mounted the new coil properly (it was just tyraped temperarily)
2. I unpluged one at a time the spark plug cables to measure the resistance of cables 1,3,5,7 as they are the easiest to get to (7.5k - 10K- a little high??) and reconnected them. What shpould I be reading on these?
3. I measured the idle voltage of the TPS. (1.1v)
4. I then pulled the connectors of the Air intake and coolant sensors and scraped the pins/recepticals and sprayed some contact cleaner and reconnected.

I went for a drive and the problem is gone - lots of power!!! Was it oxidixed connector contacts?????? ............is it fixed or just in remission?????????????

Now I can't make it happen and it is almost 80 out!

go figure!

All of your cables should measure between 500 ohms to 1k or less. I would suggest in investing in a good set of spark plug wires and NOT Accell unles you want to spend a fortune on their high dollar sets. Check out Summit, Jegs, etc for MSD, Taylor, Moroso and you should be able to find a good set for $50 or so.

Thanks NTFDAY - It is my next purchase!!!

I thought that these readings were high- I am using my Fluke meter so I know it is accurate. So much for Accell!

You're welcome. I don't like to rag on something unless I have first hand experience and I have first hand experience with Accell plug wires and their super coils, JUNK! I'm running Taylor spiral cores on my Duster and Moroso on my '66 Mustang and I'd recommend either one.