Mustanger69 0 Report post Posted June 16, 2020 I recently bought my dream 69 convertible 302 v8 mustang and it seems to be running good sometimes needs a lil gas to start but the oil pressure gauge is always in-between or just above the low lines oil level is clean and full to safe line its not giving me a problem but i wanna tackle it before it dose. I would appreciate some thoughts! Quote Share this post Link to post Share on other sites
69RavenConv 286 Report post Posted June 17, 2020 First thing do do is measure the actual oil pressure with a real mechanic's gauge (even one from Harbor Freight). If your oil pressure is truly low, stop driving and fix it. If oil pressure is ok (and it sounds like maybe it is since you're driving it around) check your gauge and sender. The gauges on these cars are notoriously untrustworthy, and often old age and previous owners make them worse. There are some easy ways to test, you can google this and other Mustang sites for threads. Do the gas and temperature gauges work ok? 1 Mustanger69 reacted to this Quote Share this post Link to post Share on other sites
Mustanger69 0 Report post Posted June 17, 2020 gas and temp seems too work okay i do notice only on the oil pressure gauge the glass gets fogged for some reason. ps thanks for the help Quote Share this post Link to post Share on other sites
69RavenConv 286 Report post Posted June 17, 2020 Gas, temperature, and oil pressure all work off the same voltage regulator in the dash cluster. Since only the oil gauge is malfunctioning, it's probably not the cluster. With the key on, if you unplug the wire at the sender and momentarily ground the plug to the engine block, the oil pressure gauge should peg to the H side. Only do this for a moment, don't leave it grounded very long!! If the gauge moves ok, you might need a new sender. If it doesn't move ok, it might be your gauge or wiring that's bad Don't know why it would fog, unless something's getting hot? Stuff getting hot is never good. 1 Mustanger69 reacted to this Quote Share this post Link to post Share on other sites
Mustanger69 0 Report post Posted June 17, 2020 will try and ill report back Thanks again! I'm sure ill be on here a lot Quote Share this post Link to post Share on other sites
jmlay 80 Report post Posted June 17, 2020 Some good reading for the subject: http://www.mustangandfords.com/how-to/interior-electrical/mump-1005-ford-mustang-instrument-panel-troubleshooting/ 1 Mustanger69 reacted to this Quote Share this post Link to post Share on other sites
