YJ SPEEDOMETER DOESN'T WORK +
 

Hello All,
I need a little help. I have a 94 wrangler...the speedometer is "dead"
most of the time. It does work on occasion. Any advice with what could
be ailing it?

Also, (not sure if related), when I turn my headlight switch on, the
lights do turn on as advertised, however, the speedometer light does
not come on AND both turn signal and high beam indicators are
illuminated. I changed out the light switch, no help.

Any advice on my issues? Thanks for the help.

rc

Re: YJ SPEEDOMETER DOESN'T WORK +
 

Sounds like you've got an electric problem.

The speedo is electronic, not mechanical, so that could affect it.

>From all the symptoms, I would guess that you've got a bad ground
connection (power flowing through separate circuits that share a
ground).

Re: YJ SPEEDOMETER DOESN'T WORK +
 

Sounds like you've got an electric problem.

The speedo is electronic, not mechanical, so that could affect it.

>From all the symptoms, I would guess that you've got a bad ground
connection (power flowing through separate circuits that share a
ground).

Re: YJ SPEEDOMETER DOESN'T WORK +
 

Sounds like you've got an electric problem.

The speedo is electronic, not mechanical, so that could affect it.

>From all the symptoms, I would guess that you've got a bad ground
connection (power flowing through separate circuits that share a
ground).

Re: YJ SPEEDOMETER DOESN'T WORK +
 

I am thinking grounds....

Your main ground strap is from the back of the engine head to the
firewall. When it goes bad strange things can happen.

There are some other grounds on the side of the engine near the oil dip
stick.

I am not sure where the dash ground hooks up but it is suspect too.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

rc wrote:
>
> Hello All,
> I need a little help. I have a 94 wrangler...the speedometer is "dead"
> most of the time. It does work on occasion. Any advice with what could
> be ailing it?
>
> Also, (not sure if related), when I turn my headlight switch on, the
> lights do turn on as advertised, however, the speedometer light does
> not come on AND both turn signal and high beam indicators are
> illuminated. I changed out the light switch, no help.
>
> Any advice on my issues? Thanks for the help.
>
> rc

Re: YJ SPEEDOMETER DOESN'T WORK +
 

I am thinking grounds....

Your main ground strap is from the back of the engine head to the
firewall. When it goes bad strange things can happen.

There are some other grounds on the side of the engine near the oil dip
stick.

I am not sure where the dash ground hooks up but it is suspect too.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

rc wrote:
>
> Hello All,
> I need a little help. I have a 94 wrangler...the speedometer is "dead"
> most of the time. It does work on occasion. Any advice with what could
> be ailing it?
>
> Also, (not sure if related), when I turn my headlight switch on, the
> lights do turn on as advertised, however, the speedometer light does
> not come on AND both turn signal and high beam indicators are
> illuminated. I changed out the light switch, no help.
>
> Any advice on my issues? Thanks for the help.
>
> rc

Re: YJ SPEEDOMETER DOESN'T WORK +
 

I am thinking grounds....

Your main ground strap is from the back of the engine head to the
firewall. When it goes bad strange things can happen.

There are some other grounds on the side of the engine near the oil dip
stick.

I am not sure where the dash ground hooks up but it is suspect too.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

rc wrote:
>
> Hello All,
> I need a little help. I have a 94 wrangler...the speedometer is "dead"
> most of the time. It does work on occasion. Any advice with what could
> be ailing it?
>
> Also, (not sure if related), when I turn my headlight switch on, the
> lights do turn on as advertised, however, the speedometer light does
> not come on AND both turn signal and high beam indicators are
> illuminated. I changed out the light switch, no help.
>
> Any advice on my issues? Thanks for the help.
>
> rc

Re: YJ SPEEDOMETER DOESN'T WORK +
 

Thanks guys. I will check all the grounds that I can find.

Re: YJ SPEEDOMETER DOESN'T WORK +
 

Thanks guys. I will check all the grounds that I can find.

Re: YJ SPEEDOMETER DOESN'T WORK +
 

Thanks guys. I will check all the grounds that I can find.