When i start the car the tach jumps higher then tha actual rpm. Once it warms up the tach reads normal. I give it slight acceleration the tach will follow but if i give it to much fuel the needle jumps up. Ive seen alot about a ground mabey or something. I hate electricity! Im ready to install a aftermarket one. Any help?

 

check your distributor. that's what happen with me my distributor was loose.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by r1ch1e &raquo;</TD></TR><TR><TD CLASS="quote">check your distributor. that's what happen with me my distributor was loose.</TD></TR></TABLE>

Bad ignitor modules will cause this also.

 

Distributor tight! Ignitor modules? Should i just install another one and disconect this one or will it do the same thing?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Gvis420 &raquo;</TD></TR><TR><TD CLASS="quote">Distributor tight! Ignitor modules? Should i just install another one and disconect this one or will it do the same thing?</TD></TR></TABLE>

I'd try a known good distributor before replacing the ignitor, see if it solves the problem. The next step would be taking your dizzy apart and pulling the ignitor, then using a multimeter to test and see if it is good (if another distributor does make the jumpy tach stop).