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Old 06-01-2011, 06:22 AM   #1
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Extra gauges...

Are there any crucial gauges for monitoring components fuel pressure, air fuel (just an example...as i know this one is cool for the ricers) etc. I know the jeep has a pretty comprehensive set in the dash but i like the look but being functional as well.

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Old 06-01-2011, 08:44 AM   #2
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Well I guess you could add more. Me, I like gauges that read out what is going on vs some "idiot" light that comes on when it's too late.

Off the top of my head can't really think of anything more then what's already there.
You already got fuel level, engine temp, oil pressure, alternator voltage, speed, and a tach.

Sure you can add trans temp, diff temps, fuel pressure/ratios, oil temp, angle inclination, GPS, air pressure, and so on.

But unless you know what they are for, where they should be reading and have the time to be watching a dozen gauges and drive you are a better man then me.

And how often do you look at your gauges? Be honest now. You may look at the fuel gauge when you jump in, occasionally the speedo, but unless something happens you don't give any gauge another look.

That's where idiot lights came to be. Most folks never look at anything except the speedo/ gas gauge. So it was cheaper to install idiot lights.

And honestly most of those ricers don't have a clue as to what all those add on gauges do or mean. It's just bling.

And I swear, if you mount one of those freaking 6" Auto Meter tachs with the shift lamp on it, on your jeep I will personally come over there and slap you. LOL!

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Old 06-01-2011, 10:01 AM   #3
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regarding how often i look at gauges on the dash...you have not been driving jeeps long? Just kidding, i have owned jeeps for 10 years and that is a common practice with mine...espcailly the coolant temp as i have had 2-4 radiators crap out. Just wondering about possibly fuel pressure and air pressure on the stock lockers. I dont think that trans temp would be good because i have a manual.
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Old 06-01-2011, 11:33 AM   #4
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Oh only about 40 years now. But then again I take care of my stuff and know my jeeps. Granted I grew up on a farm, and spent most of my life repairing vehicles. I can often hear/smell/see something long before a gauge tells me I have a problem.

And I was being facetious, about the gauges, except the tach bit. LOL!

A jeep is a simple thing, it was designed that way. Simplicity vs complexity is always a winner. Less to go wrong.

And a jeep, and how you want it is your choice, if it makes you happy so be it.

So if you want an under dash gauge pod, or a ricer "A" pillar version, it's your jeep. Heck go find an old Buick or GTO hood pod if you want.

But I mean it, if I see that tach, you will be getting the head slap. It's a jeep not a drag racer.



p.s. Don't tell anyone, but my 74 Renegade had headers into chrome side pipes, ala a Cobra set up. Course thou it was a V8. And yeah they got the crap beat out of them. But I liked it.
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Old 06-01-2011, 01:08 PM   #5
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Quote:
Originally Posted by jeepson33s View Post
Are there any crucial gauges for monitoring components fuel pressure, air fuel (just an example...as i know this one is cool for the ricers) etc. I know the jeep has a pretty comprehensive set in the dash but i like the look but being functional as well.
I think the only critical gauge Jeep left out was the oil pressure gauge. Depending on your year, the stock oil pressure gauge may be fake. Somewhere after 2001 or so, the oil pressure gauge doesn't read anything of worth. The oil pressure sending unit is only binary - it just tells the ECM if the pressure is above 3psi or not. As long as oil pressure is above 3psi, the ECM displays ~40psi at your face. IIRC, the ECM only throws a CEL once the oil pressure has been below 3psi for something like 2 minutes.

Jeep did this to reduce service calls at the dealership. Morons would bring their jeep in complaining something was wrong because the oil pressure changed with RPM & speed.
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Old 06-01-2011, 04:43 PM   #6
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Quote:
Originally Posted by Shelby427
Oh only about 40 years now. But then again I take care of my stuff and know my jeeps. Granted I grew up on a farm, and spent most of my life repairing vehicles. I can often hear/smell/see something long before a gauge tells me I have a problem.

And I was being facetious, about the gauges, except the tach bit. LOL!

A jeep is a simple thing, it was designed that way. Simplicity vs complexity is always a winner. Less to go wrong.

And a jeep, and how you want it is your choice, if it makes you happy so be it.

So if you want an under dash gauge pod, or a ricer "A" pillar version, it's your jeep. Heck go find an old Buick or GTO hood pod if you want.

But I mean it, if I see that tach, you will be getting the head slap. It's a jeep not a drag racer.

p.s. Don't tell anyone, but my 74 Renegade had headers into chrome side pipes, ala a Cobra set up. Course thou it was a V8. And yeah they got the crap beat out of them. But I liked it.
So you can smell plastic about to crack?!? Tell me your secrets!!! I have had 2 rads spring leaks along the pinch line of the plastic end caps...one only my 1996 Cherokee with 220k and one on a liberty with 140k both with the same problem...and a water pump on my old 1996 wrangler. I take good care of my cars
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Old 06-02-2011, 01:21 AM   #7
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I like having a vacuum gauge. Not so much for tuning, but it helps mileage when it reminds me to lift my foot a little...
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Old 06-02-2011, 02:14 AM   #8
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To the OP, it I were to install additional gauges they would be mechanical oil pressure and coolant temperature so as to have accurate readings.
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Old 06-02-2011, 03:11 AM   #9
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Quote:
Originally Posted by Mischievous Cat View Post
I like having a vacuum gauge. Not so much for tuning, but it helps mileage when it reminds me to lift my foot a little...

How would I do this? Where would I find a vacuum gauge? What would normal read for a TJ, and when would I lift my foot?

How can I install an oil pressure gauge and what should it read?
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Old 06-02-2011, 06:03 AM   #10
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haha...i said 1996 wrangler! It was made in 1996 but it was a 1997 . I would like to know about this vacuum gauge as well.
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Old 06-02-2011, 09:58 AM   #11
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Jeepson, not smell, see. Granddad always told me a flood never starts as a flood, it starts with a trickle. All the blown rad ends I've seen there were always stains showing where the coolant was seeping out before the cap finally blew.
The trickle before the flood.

And a vacuum gauge or oil pressure gauge can be bought at most auto parts stores. Simple hook up.
If you wish it to be lit up, you tie into the dash lamp circuit for it. The vacuum connection is a vacuum line run to a port off the intake manifold. Often there is a plugged arm on the main tee you can remove and install your hose on. If not you install a vacuum tee in one of the lines off the main feed, and install your gauge hose to it.

Oil pressure is done one of two ways, electrical or mechanical.
Electrical uses a sender unit, just like the one in the jeep does, to feed info to the the gauge, via wires.

A mechanical gauge actually taps into the oil system. A line feeds oil to the gauge, the gauge reads the pressure. Gotta be careful with those, a loose fitting or broken line will make quite a mess.

Vacuum gauge will read around 18 psi, at idle, and drop as you accelerate.
Lift off the gas pedal and the vacuum reading will go back up.

Oil pressure gauge will read 10-15 psi on a hot idle. It will climb progressively as the engine rpms go up. Somewhere around 60 or so on the high end. Note this will vary on the high end and low ends, dependent on the oil pump that's being used, engine temp, and the condition of the oil.

New fresh oil will read higher then old worn out oil. A cold engine will read higher at idle then a hot one. Both is because of oil thickness. Thicker the oil the higher the pressure.

And on the pumps, there are three versions. Stock, High pressure/Low flow, and Low pressure/High flow. Each has it's own normal readings.

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God I miss that Jeep. Forgot the kinda Jeep, 80 SX4.
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