tylergrant2011 Posted February 24, 2015 Share Posted February 24, 2015 Does anyone know how/if you can change the oil pressure from the standard light on the dash to a gauge? I know you would have to buy a different sending unit but not sure what to buy. Link to comment Share on other sites More sharing options...
jimoshel Posted February 24, 2015 Share Posted February 24, 2015 One of the most common and easiest changes you can make to the instrument panel Just buy a stock sending unit and a gauge. Link to comment Share on other sites More sharing options...
jimoshel Posted February 24, 2015 Share Posted February 24, 2015 Let me elaborate. There is two types of gauges. Mechanical and electrical. Thee mechanical gauge has a tubing connected to the oil passage and gauge. The electrical gauge has a sending unit screwed into the oil passage and is connected to the gauge by a length of wire. Link to comment Share on other sites More sharing options...
tylergrant2011 Posted February 24, 2015 Author Share Posted February 24, 2015 Is there a kit I can buy Link to comment Share on other sites More sharing options...
Dadinator Posted February 24, 2015 Share Posted February 24, 2015 Just buy the full guages from a junkyard xj and swap. Then change the sending units for oil pressure and temp. Easy as pie. Link to comment Share on other sites More sharing options...
Incommando Posted February 24, 2015 Share Posted February 24, 2015 Easiest/Cheapest. Grab the gauge cluster and the sensors you need from an XJ at the junkyard. IIRC you need a Renix set if you have a Renix truck and a OBD1 if you have OBD1. You need the sender located by the oil filter for the oil pressure. The one for temp is located on the rear of the head on the driver's side. It is very small. It is not the large sender by the thermostat. Get these from the donor vehicle as well as they are rarely go bad. From there it is plug and play. If you have an automatic MJ keep in mind that most XJ's are floor shift while MJ's are column shift. Using a gauge cluster from a floor shift jeep will mean you lose your gear indicator in the dash. I have never found it to be an issue but you can search for the harder to find and usually more expensive MJ full gauge cluster from an auto MJ if it bothers you. Link to comment Share on other sites More sharing options...
Incommando Posted February 24, 2015 Share Posted February 24, 2015 Is there a kit I can buy As for this there is no "kit" to swap the gauges by replacing the original lights. If you want to add additional gauges it is as easy as buying the gauges you want in a 2 or 3 gauge set or even individually and installing them where ever you want them. Such kits are available from your local McAuto parts place or places like Summitracing.com or jegs.com. Link to comment Share on other sites More sharing options...
johnj92131 Posted February 24, 2015 Share Posted February 24, 2015 Is there a kit I can buy The cluster swap is the best "kit" you can buy. It is plug and play. Just get the correct one for your MJ from the same year/engine XJ. No muss, no fuss. It just works. Link to comment Share on other sites More sharing options...
big66440 Posted February 24, 2015 Share Posted February 24, 2015 Is there a kit I can buy The cluster swap is the best "kit" you can buy. It is plug and play. Just get the correct one for your MJ from the same year/engine XJ. No muss, no fuss. It just works. :agree: I wanted to do a complete " custom" gauge cluster set up on my MJ, but after figuring out the cost I was discouraged I went the route everyone on here recommends and I am happy.To answer your original question though, no there's no one that makes a readily available kit. ( at least that I know of) Link to comment Share on other sites More sharing options...
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