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+--- Thread: Ignition missing and jumping tach (/thread-2733.html)
Ignition missing and jumping tach - jdowns67 - 03-22-2011
Hey guys, I have a new problem and I thought I'd post it here before I did any serious troubleshooting. I have a HEI distributor that has been installed for almost a year now with no issues. Lately, my motor has been missing a little and I can see the tachometer jump up every few seconds. When I really take off, I can really feel it surging/missing. Has anyone else run into this on a HEI distributor?
JD
Ignition missing and jumping tach - firefighter2134 - 03-22-2011
if your tach is acting up along with the engine you might wanna check your coil. because thats where it gets its information from. or if you have a bad ballast resistor.
Ignition missing and jumping tach - broncosbybart - 03-22-2011
jdowns67 Wrote:Hey guys, I have a new problem and I thought I'd post it here before I did any serious troubleshooting. I have a HEI distributor that has been installed for almost a year now with no issues. Lately, my motor has been missing a little and I can see the tachometer jump up every few seconds. When I really take off, I can really feel it surging/missing. Has anyone else run into this on a HEI distributor?
JD
any idea of which dist. it is?? there are some junks out there. it could very well be carb (fuel) related, or a bad plug(s) or wire(s). what all have you done to it recently (if anything)?? You can also try disconnecting the tach wire and see if it goes away.
Ignition missing and jumping tach - jdowns67 - 03-23-2011
It's an HEI distributor. I opened it up last night and found a loose connector from the magnetic pickup to the module. It's running fine now but I am still keeping an eye on it.
Thanks for the advice,
JD
Ignition missing and jumping tach - broncosbybart - 03-23-2011
I was thinking more of the manufacturer. If it is a Pro Comp, they had a lot of issues. Hopefully it was a loose connection. I have a Proform one in my crawler (came from Jeff's). So far so good. The first one I bought was an ebay special. No spark right out of the box....
Ignition missing and jumping tach - jdowns67 - 03-23-2011
It's a Performance Distributors distributor (DUI)