Question about 1985 Chevrolet Camaro

2 Answers

Low Oil Pressure on 1992 Chevy 1500 Pickup Truck

When the engine is first started the Oil pressure guage 'Red lines' on the high end. As the engine warms up and the oil begins to thin the pressure goes down to about 30. After about 45 minutes of driving as I'm sitting and idling, it reads 0, and the Check Guages light comes on. It will basically stay there or just barely come out of the 0 mark. It only reads high (Normal) at the start.

Posted by on

  • 2 more comments 
  • jcasady4 Dec 28, 2008

    Just for giggles I located the Oil Pressure sensor (Switch) just to see where it was, and I found it to be very wet with Oil. Maybe this is a clue. Could it be leaking from there or loose?

  • Anonymous Mar 13, 2014

    intermittent check engine light. codes say misfire and fuel guage. noticing once in a while the fuel guage goes all the way down and the low fuel light comes on. after a few minutes it goes back to normal. today i noticed the oil pressure is higher than normal and voltage guage reading higher than normal. also the tow haul working intermittently. could this be a ground issue? or a cluster issue?

  • James Cooper
    James Cooper Mar 26, 2014

    Ive got a 98 Silverado 350 with 109k miles. My truck is doing the same thing. p304 code and low oil light coming on when at idle. I replaced fuel pump, plugs, wires, cap and rotor all in the last six months. Still have the hesitation and poor fuel economy. I'm not sure where else to look.......

  • Anonymous Mar 27, 2014

    oil pressure goes up, oil filter blows and engine knocks



2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 404 Answers

Hi! The problem you are outlining is very similar to the Rover V8 (Buick engine). We Brit's are used to the low oil pressure when warm. I presume a complete oil change engine flushed with new replacement filter has been carried out? Maybe a top quality synthetic oil with additive may help. You may take it a little further and replace the oil pump with an after market performance up rated one. If you really are worried about low oil pressure damage whilst in low rev's try Molybnenum Disulphide an oil additive which really reduces friction metal to metal wear particulary in the situation you are describing.
That's the best I can suggest at this moment.
Good Luck! and Happy New Year!
Paul 'W'

Posted on Dec 28, 2008

  • Paul W
    Paul W Dec 29, 2008


    Again a problem I've suffered, Small Block in a G20 Chevrolet WinneBago Sundancer Motorhome. I converted it to run on Lpg and on our 1st outing I nearly had a heart attack, when I started it to leave the campsite Nil oil pressure I immeadiatly shut off the engine. I took the engine cover off and loosened the Oil pressure sensor (Bell Shaped) started it again and oil spewed out so I knew the oil pump was working.

    When I returned home I purchased a Manual oil pressure Gauge (Capilliary tubed) fitted it without a problem and Bingo correct oil pressure at all temperatures.(WinneBago is no longer in our possesion)

    Loks like you may have solved this one yourself, WELL DONE!

    Paul 'W'


  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

1992 silverado pickup has a problem with the oil pressure Gage on the dash board fluctuate when i put break on or accelerate the gas 

Posted on Feb 14, 2009


1 Suggested Answer

  • 2 Answers

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

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

2001 Chevy Silverado c1500 pickup has very low oil pressure, what do I need to look at?

Do not drive the truck until the issue is resolved.

1. Make sure the oil is at the proper level in the engine with the correct spec oil for the pickup. Oh it is normal for the oil pressure to be a little low at idle and go up to the normal range as the engine rpm goes up to normal operating range.

2. It could be either a real problem or a problem with the oil pressure indicator. To verify which connect a mechanical test pressure gauge of the proper range say a 0-100 psig scale to the point where the oil pressure sensor is connected. After it is connected test run the engine for a short period. If the pressure shows normal replace the oil pressure sensor. If the gauge confirms the low oil pressure then you have a serious issue in the engine. It could be:

1. Bad oil pump or oil pressure relief valve

2. excessive clearance in the bearings due to high miles.

Nov 17, 2014 | 2001 Chevrolet Silverado 1500

1 Answer

Oil gauge looses pressure at times. For 1989 Chevy 1500 pickup. What does this mean?

It could be the sending unit, or the engine could really be loosing oil pressure. Low oil pressure can be a number of things including a weak pump, blockage at the pickup screen, or worn bearings.

Jan 30, 2014 | 1989 Chevrolet C1500

1 Answer

On my 2004 gmc sierra z-71 it has the low and high side airconditioing port it looks like about 8 in apart on the same line u can put a recharge can and guage on the 1 closest to the firewall it reads...

There is a orifice in the line.On one side you will have high pressure.After the orifice you will have low pressure.Like having a garden hose with a small nozzel and putting the same size hose over the nozzel with the other end open.Not sure what the pressure is called for on that truck.May be higher pressure required.May want to try and find out what the required pressure is for your truck.

Aug 23, 2010 | 2004 GMC Sierra 1500 Crew Cab

1 Answer

Sudden High and Low Oil Pressures

yes it might work if u flush it, give it a try

May 27, 2009 | 2000 Dodge Ram 1500 Truck

2 Answers

Changed oil pressure switch,still no oil pressure

The fuel pump on that model runs through the oil pressure switch so that if the truck looses oil pressure,It kills power to the fuel pump to prevent engine need to find the cause of the low oil pressure reading(possibly a bad oil switch).That would be the cheapest place to start,or have it checked with a mechanical gauge.Good luck,

Mar 30, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

Oil pressure problems for a 2005 chevy 1500 silverado

The first thing you should do is change the oil filter. No matter how old it is. If that doesn't work repost.

Mar 07, 2009 | 2005 Chevrolet Silverado 1500 2WD

1 Answer

Changed oil pan gasket now i dont have much oil pressure

If oil pressure was fine before you changed the gasket, it's likely that some debris was loosened up (probably under the pan baffle) and got onto the oil pump pickup, restricting flow. The only other cause of low pressure would be worn engine bearings, which would not happen just by changing oil pan, unless you messed with either bearings or pump while pan was down. Remove the pan and carefully inspect the pump pickup for debris!!! DO NOT DRIVE VEHICLE 'TILL YOU HAVE CORRECTED THIS OR YOU WILL DAMAGE BEARINGS!!!

Feb 19, 2009 | 2000 Chevrolet Silverado 1500

2 Answers

Sudden change in oil pressure gauge


Feb 02, 2009 | 1993 GMC Suburban

1 Answer

Flashig oil light

You either have a loose/worn engine bearing or a worn out oil pump, do not drive the car this way, you will cause serious damage to the whole engine. A oil switch is for a light, it turns on the light when oil pressure falls below about 10 PSI, a sending unit is for a guage that shows oil pressure with a scale, it may have numbers on the guage or just green and red, or high and low.

Oct 10, 2008 | 1992 Buick Roadmaster

Not finding what you are looking for?
Cars & Trucks Logo

1,819 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts


Level 3 Expert

83644 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22393 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides