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I have case 5140 with no neutral in the forward /reverse shuttle I have no reverse and 20 psi oil pressure at rev test point

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6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 6982 Answers

SOURCE: oil pressure gage

At idle, at operating temp is there any ticking from top end of engine? Are there any knocking noises brom bottom end?
If no noises, change oil and add some Marvel oil to clean out galleys. If that dosent work, change oil pressure sendingf unit. Also, if you have a mechanical oil pressure gauge, hook it up and take a direct reading. Oil pressure (in any vehicle) at idle should NEVER be less than 15psi. Generally in 4.0 jeep engines it's never less than 30, with a high reading at driving rpm of about 40-60! (but, you did not mention what engine you have)

Posted on Dec 28, 2008

  • 1 Answer

SOURCE: i have a 1997 pontiac

Ckeck the ground wire located near the sensor... this causes this problem

Posted on Feb 28, 2009

honeymokey
  • 3113 Answers

SOURCE: oil pressure guage occassionly drops to 0 psi and warning light g

Get it checked with a mechanical gauge. Replace sensor.

Posted on Sep 28, 2009

  • 1 Answer

SOURCE: 1996 oldsmobile aurora oil pressure

The Aurora is a low pressure oil system. The only solution available at this time is to increase the oil weight. I went o straight 30W to solve the idle alarm issue. Some use 20W oil and that works too.
With 20W you will be at 80 to 90psi cold then drop to 20-30psi hot.
I first replaced the oil pressure gauge and it was worse. I put the original back in and it was better. Then went to 30W and all is fine.
Running it that way for a few years now.

Posted on Apr 03, 2010

  • 1 Answer

SOURCE: 1991 Caprice No reverse. Moves in neutral. All forward gears OK.

This is Ron out of Vero Beach Florida. I have been doing trannys for years. The problem you described is caused (more than likely) by a seized clutch pack. Depending on the trans, and your car should be RWD with a 700r4 tranny, there are several sets of clutch packs and at least one band. Automatic transmissions rely on fluid pressure to "engage" the correct set of clutch discs, at the right time , to engage and change gears. I have seen in the past, where a customer parks his car for the evening and the next morning, no move. What happened?? More than likely, a clutch pack was on it\'s way out but cause the car was hot the plates were free, but after cooling, they can weld themselves together and actually "lock-up". In the morning you know the end result. Your tip on "moves in Nuetral" is the give away. Ron

Posted on Jan 18, 2013

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1 Answer

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Nothing wrong with that, your oil pump is geared to the crank shaft. The higher the revs the more oil is being pumped by the oil pump. The oil galleries are a fixed size so as the flow increases the pressure rises to force the increased flow through the same size oil galleries. You should also notice that you oil pressure is 10 to 20 psi higher when the engine is first started and every thing is cold.

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It could be the engine is worn. If too much combustion pressure gets by the piston rings this will cause pressure to eject engine oil.

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