Going down the road get about forty pounds of oil pressure. when stopping gauge goes to zero. today even going down the road gauge went to zero.
Replace oil pressure sender, common failure, and recheck.
Get it to a shop that can test the oil pressure with a mechanical gauge. It might just be a bad sender unit but DO NOT keep driving it as low oil pressure will KILL your engine.
If your oil is full, it's most likely electrical. If it's not electrical, then it's most likely something like a crack in the pickup tube, sucking air if I had to guess.
SOURCE: The oil pressure gauge keeps dropping down to 0 while i am driving
If you don't hear any ticking or knocking while the pressure gauge drops, the problem is probably a failing "oil pressure sensor". If you do hear a ticking or knocking, the problem is probably a failing "oil pump".
SOURCE: OIL GAUGE GOES DOWN AT STOPS
I had the same problem with my 97 Wrangler 4.0..Change your antifreeze, replace with some new 50/50 mix...Also chanke your oil, replace the filter with a mopar filter and use stratght 30 weight motor oil...Solved my problem
SOURCE: oil pressure gauge reads normal when first starts.
Two things...when it reads zero, is there any engine noise (tapping or knocking)? After you rev the engine does the pressure read normal at idle and function normally, or does it go back down? Either way, you should not drive the vehicle 'till you have a mechanical gauge (yours is electro-mechanical) put on there and the actual pressure is tested. The condition may be a bad sending unit, a bad bearing or possible obstructed oil pump screen. The repair is obviously different for each one and the price is as well.
SOURCE: 'Check gauges" light comes on and oil pressure gauge reads zero.
The first thing I would definitely do there is change the oil. Used oil tends to loose lubricity and becomes thinner than it was when in the container. When hot, it becomes even thinner and will cause a drop in pressure.
Most jeep engines hold around six quarts of oil, so by adding what you did the new oil helped a bit but cannot correct the problem.
I would change the oil and use either a 20w50 oil with a pint of Marvel oil, or change to a good synthetic with a container of Lucas additive. It is possible that whatever oil you have been using is causing a carbon buildup that is beginning to block off the pump pickup screen. Either of the above suggestions will help with that. In engine oils, price is important...cheaper oils are high paraffin base which causes deposits to form.
You don't want that in your engine. Only exception is Wal-mart store brand oil which I believe is Quaker State (re-packaged). If you opt for a synthetic, it's not a bad choice and is cheaper.
Make sure you use a good quality filter. The filter is what keeps the oil clean and useful during its lifespan.
One note... If there is any tapping or knocking inside the engine, that is caused by internal bearing wear and should be corrected immediately. No oil can compensate for internal pressure loss and if caught early, can be repaired. (otherwise, later, engine will need to come out and be overhauled or replaced.)
Any pressure problems can be verified by installing an external mechanical gauge on the engine. That is the only way to know exactly what is going on with any degree of accuracy. (dash gauge is electro-mechanical).
good luck
Testimonial: "Thank you SO very much for replying so quickly. Money has been so tight and with Christmas next week it just makes me sick to think of car trouble."
683 views
Usually answered in minutes!
×