Re: B-body gauges not working
[Re: tippytoe]
#65566
05/30/08 11:12 AM
05/30/08 11:12 AM
|
Joined: Nov 2004
Posts: 9,312 SoCal
68HemiB
master
|
master
Joined: Nov 2004
Posts: 9,312
SoCal
|
I am assuming that the setup is a CVR with spades that plug unto the printed circuit on the back of the cluster. If I am mistaken (or otherwise on an acid flashback), feel free to ignore what I am going to say. Note that this approach is often taken by my wife.
The failure of both gauges means that there is a high probability that the failure is in circuitry shared in common (rather than a coincidence of two failures in two later separate places). You previously stated that you have input power [bright test light] and output power [dimmer, pulsing light] at the CVR. Put aside the minutiae of the actual voltages - the test light method works for the majority of this level of diagnosis.
Where did you get the dim, pulsing light on output?
a. If it was at the spade of the CVR, maybe there's a dirty connection at the output socket. Try cleaning it up, and add interference by gently twisting the CVR spade a bit and re-inserting it.
b. If it was beyond the CVR, chase it from there. Broken tracing in the printed circuit? Dirty connection(s) at the gauge backs?
Personally, I am hoping that your test light was on the spade, and you just have a dirty socket contact.
Down to just a blue car now.
|
|
|
Re: B-body gauges not working
[Re: tippytoe]
#65570
05/30/08 12:14 PM
05/30/08 12:14 PM
|
Joined: Nov 2004
Posts: 9,312 SoCal
68HemiB
master
|
master
Joined: Nov 2004
Posts: 9,312
SoCal
|
Okay.
So the pulsing, lower voltage has to make it from the spade, through the printed circuit tracing, to the input side of the two gauges.
Check for a bad connection where the spade plugs into the socket. Take out the CVR. Twist the spade a bit so it has interference when plugging it back in. Plug it back in.
Down to just a blue car now.
|
|
|
Re: B-body gauges not working
[Re: tippytoe]
#65572
05/31/08 08:56 AM
05/31/08 08:56 AM
|
Joined: Sep 2005
Posts: 5,117 Haslett, MI
7DRRunner
master
|
master
Joined: Sep 2005
Posts: 5,117
Haslett, MI
|
are new circuit boards still available ?
just curious
"Good luck on your project."
1970 Road Runner
"Accellertii Incredibus"
|
|
|
|
|