Tonight i felt like relaxing behind the wheel

So headed out to the runway, car was running well and warmed up nicely.
Accelerated up to 150mph when i looked at the instruments and noticed the oil pressure had gone, Zero!!!
Stopped checked what i could in the dark with only a mobile phone light. Still have oil etc. Still runs fine, drove 15 miles home no overheating.

I'm thinking that this must be a sensor fault, what do you guys think?

 

could it be the guage?

 

Sensor fault, if you actually had 0 oil pressure at that engine speed and load, you wouldn't have been doing 150 for very long at all.

 

either your sensor or your gauge is faulty. Mine has the same problem, but I don't believe it's dependent on speed.

 

Is it working now? I've heard of the gauges doing that before. In fact, my stock one did it once, dropped to 0 so I revved it and it started reading correctly again. Been fine ever since. Anyway, guess it could be the gauge or sender maybe.

 

JoO went so tEh fast you broke your gaugez.....lawlz

 

I have had the sensor wire fall of the oil pressure sending unit a couple times. Also have had the sensor loose so it did not read the right oil pressure.

 

as long there are oil, then you are fine. check frequently.

 

Mine constantly reads about 1/2 inch above max. Soooo like 200lbs

??

 

Not really. You can have oil and have no oil pressure. There are a few items, one in particular that can cause almost zero oil pressure, the little rubber o ring behind the front cover.

 

well i had same problem but i wasn't doing 150mph and pressure didn't go that far down but it was low and just replaced oil sensor easy fix and i had oil allover bottom of engine and buy sensor

 

damn, I wish I could just "feel like relaxing" and go top my car out..haha.

 

no kidding, me too. maybe I should befriend some people at the local air strips...

 

my volt gauge sometimes will stick at 0, a swift slap on the gauge cluster will clear that up

 

i was looking around in the 3rd gen section by accident today and a few guys were talking about oil pressure gauge problems, i know that doesnt help you at all lol but maybe mazda really hates oil pressure and they think you should too =D

anyway yea my pressure gauge is broken too, i have to get around to fixing that...

 

Here's my dilemma... My oil pressure guage all of a sudden dropped all the way to 0 while I was drining to work yesterday, and about 30 seconds after that the oil sensor buzzer started screaming at me. I pulled over as soon as possible and popped the hood to find oil everywhere and smoke from it burning off. I poured 4 quarts of oil in it and drove it straight home (about 4 miles) and what's weird is the motor seemed normal on the way home other than the buzzer going off, all the oil I poured in was coming right out, and it smelled like burning oil. It still ran fine though with a good idle and clean acceleration. What do you think happened? The oil sprayed all over my engine bay points to something serious and expensive. Any ideas?

 

I think you speedo broke...150mph, yeah right. Don't you kids use kilometers????

 

yeah same here...cept for me its my temp guage lol.

 

My gauge failed last year, replaced it with an aftermarket one for my daul gauge a-pillar pod!! Im guessing its the sensor/gauge.

Chris

 

Check the hoses to your oil cooler and the cooler itself. The hoses are on the drivers side at the very front bottom corner of the engine bay. The cooler is at the bottom in front of the A/C condensor and Radiator. This is not an uncommon problem and you have been around long enough to know where the search button is :P The oil all over the engine bay is because it gets caught by the fan and belts and gets blown and slung everywhere.

 

Sorry if you dont have the ***** to top out your car on a regular basis, I'd have stated 240 K/h but thought i'd do the conversion for you.

I have actually done 160 mph indicated speed, but of course thats during the day when i can drive with the lights down! See as i have actually topped my car out I know the pop-ups being up is worth about 10mph from your top speed.

By the way guys today i got my pressure guage back for about a miniute then died again, Least for a while i was reading a healthy 60.

 

I had the wire fall off too. Thats an easy fix! lol

 

So what is normal oil pressure when idling? Driving? Just cruising, mine's around 50 or so, at a stop light or something it drops to ~15...

 

Tomoaac: The sensor wire plug is probably not making good contact on the sender (large dia. below oil filter). I'd unplug, clean and replace.

Gocarfc3s: Sounds like a blown oil cooler hose as said by Roughrex (been there, done that).

 

Normal is 30 idling and 60 driving.