Jim, It reads full scale hot on cold engine.
John, It came with Teflon tape already on the sender. I'll pull it out and
clean both sender and manifold and see what happened.
Thanks guys,
Jim Ernst
77 PB
Columbus, NE
> You did put any teflon tape or sealant on the threads did you? If you did
> take it back out and clean the treads in both the manifold and the sender.
> No sealer is needed just put it in snug, do not over tighten. The sender
> grounds thru the brass treads and with a bad ground it will act funny.
>
> JR Wright
> GMC Great Laker MHC
> GMC Eastern States Charter Member
> GMCGL Tech Editor
> GMCMI
> 78 GMC Buskirk 30’ Stretch
> 1975 GMC Avion (Under Reconstruction)
> Michigan
>
>
> >
> > Check to see connection, grounding it should read full scale, or am I
> mixed
> > up.
> >
> > On Tue, May 2, 2017 at 12:53 PM, james Ernst
> >
> >> Hello gang,
> >> I just switched out the old temp sender, which I kept, to the NAPA
> TS6469,
> >> as advised for a more accurate indicator on dash gage. However, when
> >> plugged in on ice cold engine the needle pegs the hot reading.
> >>
> >> I take it they may not work in every case or possibility it's a bad one.
> >> Are there any other choices?
> >>
> >> Thanks,
> >> Jim Ernst
> >> Columbus, NE
> >> '77 PB
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> >
> >
> >
> > --
> > Jim Kanomata
> > Applied/GMC, Fremont,CA
> > jimk
> >
http://www.appliedgmc.com
> > 1-800-752-7502
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