Help..Oil Warning light Minivan

[Aircal]

Our van has had some really bad fluid leaks, so today I replaced the transmission pan. And pulled the oil pan and replaced the gasket.
I know it has been run low on both a couple times. And lately when stopped the check oil light and beeper would go on until the van moved again. Now anytime the rpm.s drop to 1100 it goes on and stays on until somewhere between 1500 and 2000.
Checked the oil its right at max. Could it be to much? Also a qt of synthetic got dumped in with 4 qts of reg oil.
My guess is the oil pressure is to low, maybe oil pump is going bad?
2000 Chryslar Voyager. 3.3 liter. Rebuilt engine installed at 93k, now at 185k.
Any ideas ? Something I missed when I pulled the pan?

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[Bru]

My mom's 2000 2.4 Caravan has had the oil pressure sending unit go bad twice. Had similar symptoms of the light flickering.

 

[CrunkMaro]

i'm with bru.
test sending unit

 

[RICH17]

All wrong. Its a chrysler product. Best thing to do is torch it.

















But I'll be nice and suggest the same. I seem to sell them alot for the 3.3/3.8 so maybe its a common issue like the lock cylinder. good luck!

 

[Aircal]

One more thing. The replacement oil filter was a tad shorter than the one that I took off. Could that mess with it?

 

[Bru]

Not sure where it is on the 6, but the four cylinder has the sending unit halfway up the block on the passenger side. It would start leaking and building up crud around the base when it started to go bad. Not sure if they all fail the same but worth a quick look.

 

[bikrboy128]

a shorter oil filter wouldnt screw with it (unless it's way smaller)
i would put a sensor in and see what happens. it's right above the oil filter.

 

[02BlueGT]

I would agree with the sensor if it was all the time, the symptoms you are describing seem to lead to excessive wear in the bearings... Low speed all the oil pressure leaks out the loose bearings, higher engine speeds there is enough volume to overcome the leaks and build pressure..... Stock pressure warnings usually go off at 5 - 10 psi.... Try the sensor, but sounds like motor replace/rebuild time

 

[bikrboy128]

I would agree with the sensor if it was all the time, the symptoms you are describing seem to lead to excessive wear in the bearings... Low speed all the oil pressure leaks out the loose bearings, higher engine speeds there is enough volume to overcome the leaks and build pressure..... Stock pressure warnings usually go off at 5 - 10 psi.... Try the sensor, but sounds like motor replace/rebuild time

agreed. especially since the engine in question has been run low on oil so many times.

 

[Aircal]

Found several high mile vans that did the sensor and had no more trouble. Will try to swap it out sunday before the bears game, thanks all.

 

[Aircal]

Was the sensor. Super easy repair for once...lol Thanks all.

 

[bikrboy128]

you should keep an eye on the oil level though. next time it wont be the sensor

 

[Aircal]

you should keep an eye on the oil level though. next time it wont be the sensor

I also installed a new oil pan gasket , stopped the leaks so far. But keeping an eye on it of course.