Oil pressure gauge

[llane]

Hi, my oil pressure switch on my car goes to full pressure its a 74 challenger with a 318. I replaced the oil pressure sensor still the same. I think it might be the guage and i heard they had some issues. I traced the wire back as far as i could but it disappeared into a bundle of wires and couldn't seem to find it in the harnesses. Any input would be appreciated as it is important guage to work.
Thanks in advance.

 

[challenger6pak]

Factory oil gauge?

 

[llane]

Yes it is its the original.

 

[moparleo]

Is this a rallye cluster that also comes with the tach?
http://img.auctiva.com/imgdata/7/1/3/2/5/7/webimg/763116796_tp.jpg
http://www.bing.com/images/search?q...7D2ECA4180937E5A5BDB815FF1844&selectedIndex=4

 

[llane]

it is a rally cluster but not exactly like the one you have on the link
it's the one with four of them together the charging is on the bottom the fuel its on the top and the oil pressure is on the sides and the other side is the temperature

 

[moparleo]

Those are not the correct, original oil pressure or water temp gauges for the cluster. It probably didn't come original on the car either. Did you just buy the car or just change out the gauges ?
Here is the correct oil gauge http://www.ebay.com/itm/1970-1974-C...NEW-Mopar-/371272769745?fits=Model:Challenger
And here is the water temp gauge http://www.ebay.com/itm/1970-1974-E...NEW-Mopar-/151623632996?fits=Model:Challenger
and correct oil pressure switch http://www.ebay.com/itm/1968-1974-D...Parts_Accessories&hash=item53f8c5ab11&vxp=mtr

 

[llane]

Wow, crap did not notice that. Bought the car last June and that was in it.
Thanks that might explain a lot. Guess that would be a good place to start.

 

[moparleo]

It would be a good idea to drop the steering column and remove the cluster. I bet that it does not have the proper wiring harness either. Could be a short waiting to happen.

 

[challenger6pak]

Does the fuel gauge work? It looks like a voltage limiter went out and took the gauges with it. They put in what they could find at the time.

 

[llane]

all the gauges work this is the only thing on the entire car the dosent. I'm going to take it out first chance I get put in the proper ones
Thanks everybody for all your help.

 

[moparleo]

Just giving you the heads up. One thing that was poorly lacking on the old muscle cars was the electrical system. Even a new reproduction wiring harness will have the same short commings. The alternators of old were like 45-60 amps. Now electrical demand with new stereos and big speakers require much more current than the old wiring was designed for, 150 amps and more ! So it gets overloaded and melts or burns. Many dash fires have happened on stock systems and not knowing what is hiding behind the gauge cluster would scare me. At the very least you should carry a dry chemical fire extinguisher in the car.