oldster

Drove her 45 mins, unloaded and when I started motor to come home it was shaking.
Called my mech, he said check plug wires, then just drive home slower...still runs terribly rough..

The ignition module was replaced bout 5 yrs ago. (at least I think that's what the lil silver box inside the fender is called?!!?)

Y'all think its bad again?

GhostriderI

When was the last time you did cap and rotor service/ tune up?
Is this a daily driver? If not how old was the fuel in the tank?
Hope these help.

oldster

Cap/rotor/wires were also new 5 yrs ago.

Daily driver,,,fuel was good on ride down and dint get any at all that day.

GhostriderI

Have you checked the cap and rotor for corrosion? Possible coil going bad. Air filter got trash in it/is dirty choking the intake.

Just throwing ideas out
Hope they help

bitterwinds

check your fuel filter before wasting a lot of loot.

oldster

Thanks folks!

1967 Tempest

I say start with the easy stuff too. A friend of mine told me about this tool Lisle Spark Tester, It is the easiest way to see what the ignition is doing.

http://www.ebay.com/itm/LIS-19380-Li...-/230836022182

You put the end near the wire you want to look at and the light will come on as the cylinder spark plug is sent juice. If one seems weak or is not "firing" correctly then you know it is one wire or spark plug. Or possible one terminal in the cap.

If they all have issues, then the cap, rotor or ignition module is suspect.


One more thing to check is the alternator. If it is not charging the battery and the truck is running strictly off of a dying battery then it will run like crap as well.

Vacuum leaks can cause this as well. Got a video of the truck idling?

oldster

I shot a video once, by accident with my phone..lol.

I have some fuel filters left from when I was going thru 2/day, b4 I changed the carb and gas tank.

1967 Tempest

any updates?